Spectra-Physics Millennia eV Series User Manual
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Spectra-Physics Millennia eV Series User Manual

Diode-pumped, cw visible laser systems
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Millennia eV
User's Manual
Diode-Pumped, CW Visible Laser Systems
Millennia eV 15
Millennia eV 10
Millennia eV 5
This laser product complies with performance
standards of United States Code of Federal
Regulations, Title 21, Chapter 1 – Food and
Drug Administration, Department of Health and
Human Services, Subchapter J – Parts
1040.10 or 1040.11, as applicable.
Spectra-Physics
3635 Peterson Way
Santa Clara, CA 95054
Part Number 90062440
June 2013
Revision A

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  • Page 1 Regulations, Title 21, Chapter 1 – Food and Drug Administration, Department of Health and Human Services, Subchapter J – Parts 1040.10 or 1040.11, as applicable. Part Number 90062440 Spectra-Physics June 2013 3635 Peterson Way Santa Clara, CA 95054 Revision A...
  • Page 2 This manual is copyrighted with all rights reserved. Under the copyright laws, this manual can not be copied in whole or in part without the express written consent of Spectra-Physics. Documents that are authorized to be copied must bear all the proprietary and copyright notices of the original.

  • Page 3: Preface

    Preface About this Guide The Spectra-Physics Millennia eV system is a diode-pumped, continuous-wave, visible laser system. This manual contains information for the safe installation, operation, and maintenance of the laser system. Overview of this Guide The Millennia eV User’s Manual includes the following sections: Chapter 1, “Introduction,”...
  • Page 4 Overview of this Guide Preface...

  • Page 5: Environmental Specifications

    Environmental Specifications CE Electrical Equipment Requirements For information regarding the equipment needed to provide the required electrical service, refer to specification EN-60309, “Plug, Outlet and Socket Couplers for Industrial Uses,” listed in the official Journal of the European Communities. Environmental Specifications The environmental conditions under which the laser system function are listed at ...
  • Page 6 Modifications to the laser system not expressly approved by Spectra-Physics could void the user’s right to operate the equipment.

  • Page 7: Warning Conventions

    Warning Conventions Warning Symbols The following symbols are used throughout this manual to draw the user’s attention to situations or procedures that require extra attention. They warn of health hazards, damage to equipment, sensitive procedures, and exceptional circumstances. All messages are set apart by a thin line above and below the text as shown here. Laser radiation is present.
  • Page 8 Warning Symbols Do not touch. Appropriate laser safety eyewear should be worn during this operation. Refer to the manual before operating or using this device. Serviceable only by Spectra-Physics factory trained personnel. Factory Trained viii Warning Conventions...

  • Page 9: Table Of Contents

    Table of Contents Preface ..............iii Environmental Specifications .
  • Page 10 Millennia eV Series System ........
  • Page 11 SHG Autotune ........... 7-9 Alignment Mode Operation.
  • Page 12 Table of Contents...

  • Page 13: List Of Figures

    Spectra-Physics desktop icon ........6-9...
  • Page 14 List of Figures...

  • Page 15: List Of Tables

    List of Tables Table 1-1: Millennia eV system patents........1-2 Table 2-1: Maximum emission levels from the laser head .
  • Page 16 List of Tables...

  • Page 17: Standard Abbreviations

    Standard Abbreviations The following units, abbreviations, and prefixes are used in this Spectra-Physics manual. Unit Abbreviations Quantity Unit Abbreviation mass kilogram length meter time second frequency hertz force newton energy joule power watt electric current ampere electric charge coulomb electric potential volt Ω...
  • Page 18 Prefixes Prefixes Prefix Power Abbreviation Prefix Power Abbreviation tera milli giga micro µ mega nano kilo pico deci femto centi atto Abbreviations and Acronyms Abbreviation Description alternating current ACGIH American Conference of Governmental and Industrial Hygienists ALPS active laser purification system ANSI American National Standards Institute acousto-optic modulator...
  • Page 19 Abbreviations and Acronyms Abbreviation Description volts, alternating current volts, direct current λ wavelength WEEE waste electrical and electronic equipment Standard Abbreviations...
  • Page 20 Abbreviations and Acronyms Standard Abbreviations...

  • Page 21: Chapter 1: Introduction

    HAPTER Figure 1-1 Millennia eV laser The Spectra-Physics Millennia eV laser system is a diode-pumped, continuous-wave, visible system. This laser system is a rugged, sealed unit designed for simple hands-free operation. The Millennia eV laser is smaller than competitive DPSS lasers of similar power. With its intuitive GUI, automated command set, and superior design, the Millennia eV laser is nearly maintenance free.

  • Page 22: Environmental Control

    Environmental Control Environmental Control The Millennia eV laser system requires cooling fluid to remove heat and to stabilize the temperature of various system components. A closed-loop chiller is used for this purpose. The recirculating, temperature-controlled fluid flows to the laser head to remove excess heat.

  • Page 23: Chapter 2: Laser Safety

    2: Laser Safety HAPTER This chapter provides important information on laser safety and Spectra-Physics recommends that the user read it carefully. The Millennia eV laser system is a Class IV laser that emits laser radiation that can permanently damage eyes and skin. This section contains information about these hazards and offers suggestions on how to safeguard against them.

  • Page 24: Figure 2-1 Safety Warning Labels (En 60825-1: 2007, Ansi Z136.1 Section 4.7)

    Safety Precautions for Class IV High-Power Lasers VISIBLE AND / OR INVISIBLE LASER RADIATION Avoid eye or skin exposure to direct or scattered radiation. Nd:YVO , Nd:YAG, or Nd:YLF Laser. Various ultraviolet, visible or infrared wavelengths may be emitted. Consult instruction manual. Class 4 laser product per IEC 60825-1 (2007) SICHTBARE UND / ODER UNSICHTBARE LASERSTRAHLUNG...

  • Page 25: Safety Device Locations

    Safety Device Locations Safety Device Locations Emission and Status Indicators The system provides the following emission and power indicators: A white indicator on top of the laser head (Figure 2-3) turns on about 3  EMISSION seconds before actual emission occurs. fault indicator (Figure 2-4) flashes amber during the harmonic crystal ...

  • Page 26: Enable Keyswitch

    Safety Device Locations Figure 2-4 Laser safety devices, rear panel ENABLE Keyswitch The keyswitch on the rear panel (Figure 2-4) prevents unauthorized use of the laser when it is turned to the horizontal (off) position and the key is removed. Placing this switch in the position allows the laser to be turned on when commanded.

  • Page 27: Maximum Emission Levels

    Maximum Emission Levels Maximum Emission Levels Table 2-1 lists the maximum emission levels possible for the Millennia eV lasers. Use this information for selecting appropriate laser safety eyewear and to implement appropriate safety procedures. These values do not imply actual system power or specifications.

  • Page 28: Ce Radiation Control Drawings And Labels

    CE Radiation Control Drawings and Labels CE Radiation Control Drawings and Labels Label Placement See “Label Illustrations” for images of the numbered labels on the device. The number key for the following figures is listed in Table 2-2. Table 2-2 Conformance label descriptions Number Description...

  • Page 29: Figure 2-6 Millennia Ev System Conformance Labels, Bottom

    CE Radiation Control Drawings and Labels Figure 2-6 Millennia eV system conformance labels, bottom Figure 2-7 Millennia eV system conformance labels, top view Laser Safety...

  • Page 30: Label Illustrations

    CE Radiation Control Drawings and Labels Label Illustrations See “Label Placement” for the locations of the numbered labels on the device. Figure 2-8 Safety warning labels Laser Safety...

  • Page 31: Ce Declaration Of Conformity

    CE Declaration of Conformity CE Declaration of Conformity Spectra-Physics, a Newport Corporation Brand 3635 Peterson Way Santa Clara, CA 95054 United States of America declare under sole responsibility that the: Millennia eV Family of Diode Pumped Solid State Lasers Manufactured after September 10, 2012 Meet the intent of EMC Directive 2004/108/EC for Electromagnetic Compatibility and 2006/95/EC for the Low Voltage Directive.

  • Page 32: Weee Recycling Label

    13 August 2005. At this time, regulations for the disposal of waste electrical and electronic equipment vary within the member states of the European Union. Please contact a Newport / Spectra-Physics representative for information concerning the proper disposal of this product.

  • Page 33: Equipment And Training

    Additional Safety Resources Washington, DC 20210 Tel: (202) 693-1999 Website: http://www.osha.gov A Guide for Control of Laser Hazards, 4th Edition, Publication #0165 American Conference of Governmental and Industrial Hygienists (ACGIH) 1330 Kemper Meadow Drive Cincinnati, OH 45240 Tel: (513) 742-2020 Website: http://www.acgih.org/home.htm Laser Institute of America...
  • Page 34 Additional Safety Resources Photonics Spectra Buyer's Guide Photonics Spectra Laurin Publications Berkshire Common PO Box 4949 Pittsfield, MA 01202-4949 Tel: (413) 499-0514 Website: http://www.photonics.com 2-12 Laser Safety...

  • Page 35: Chapter 3: Laser Description

    This chapter provides information about the Millennia eV laser system. Overview The Spectra-Physics Millennia eV laser system is a diode-pumped, continuous-wave, visible laser that produces a superior quality, 532 nm green output beam. The Millennia eV laser system was specifically designed for applications requiring a continuous-wave, high-quality beam, along with good mode quality in a cost-effective package.

  • Page 36: Millennia Ev Laser Head

    Millennia eV Laser Head The controller for the Millennia eV laser system is a customer-supplied computer or laptop. The customer can order a laptop from Spectra-Physics as optional equipment. The following sections describe the laser head and utility unit hardware. Operating the Millennia eV laser system is described in Chapter 7, “Operation.”...

  • Page 37: Light Pick-Off And Power Control

    ± 1% of the set point. System Control The Millennia eV laser operates through a Spectra-Physics supplied GUI for day-to-day operation. This GUI is described in Chapter 7, “Operation.”...

  • Page 38: Table 3-2 Millennia Ev Laser Output Characteristics

    Specifications Table 3-1 Millennia eV laser system general specifications (Continued) Feature Specification Physical Characteristics (Laser Head) Dimensions (L x H x W) 37.47 x 10.38 x 15.24 cm (14.75 x 4.09 x 6 in.) Weight < 7 kg (< 16 lb.) Electrical/Mechanical Specifications Operating voltage 100–240 VAC ±...

  • Page 39: Chiller Specifications

    Specifications Table 3-2 Millennia eV laser output characteristics (Continued) Feature Specification Boresighted 1. M < 1.1; beam ellipticity < 10%. 2. Measured at the exit port. 3. Vertical polarization standard; horizontal polarization available on request. 4. Measured over a 2-hour period after a 30 minute warm-up. 5.

  • Page 40: Outline Drawings

    Outline Drawings Outline Drawings Dimensions shown are in inches over millimeters. Figure 3-1 Millennia eV laser system outline drawing Laser Description...

  • Page 41: Block Diagrams

    Block Diagrams Block Diagrams Figure 3-2 Interlock safety block diagram 9'& $& ,1387 9$& $ ,1387 +] $& ,QSXW &21752//(5 3&% /DVHU GLRGH *5((1 /$6(5 &+$66,6 56 25 0,&52 &21752//(5 0+] 3& &8, 9+% NK= VZLWFKLQJ IUHT )3*$ 0+] ',2'( '59 3&% &+,//(5 Figure 3-3 Millennia eV system block diagram...
  • Page 42 Block Diagrams Laser Description...

  • Page 43: Chapter 4: Controls, Indicators, And Connections

    4: Controls, Indicators, and HAPTER Connections This chapter describes the user controls, indicators, and connectors of the Millennia eV laser system. Instructions for operating this system are found in Chapter 7, “Operation.” Laser System Controls Figure 4-1 shows the rear panel of the laser, which contains all the controls, indicators, and connectors for this system, except the main emission indicator, which is located on top of the laser near the output end.
  • Page 44 The indicator blinks red to indicate that a fault has occurred. 48 V power connector Attachment for the cable from a 48 VDC utility unit. Spectra-Physics provides this utility unit (PN 90059738) with the system. Controls, Indicators, and Connections...

  • Page 45: Table 4-1: Laser Head Rear Panel Controls

    Laser System Controls Table 4-1 Laser head rear panel controls (Continued) Control Description ANALOG connector (15-pin, Attachment for a control cable from an analog control device. D-sub, HD, female) Among its many functions, this connector can be used to provide an interlock to turn off laser emission in the event that a safety switch is opened unexpectedly.

  • Page 46: Analog Interface

    ANALOG Interface Table 4-2 describes the pins for the RS-232 serial connector. Table 4-2 IBM-PC/AT serial port pinout Computer or Terminal Laser Head RS-232-C Signal Name Signal Pin No. (9-Pin) Pin No. Signal Transmit data Receive data Signal ground Protective ground SHELL SHELL ANALOG Interface...

  • Page 47: Monitoring Laser Status Via The Analog Port

    Monitoring Laser Status Via the ANALOG Port Table 4-3 ANALOG port pin description (Continued) Type Description Function Output, analog ILK_OUT Provided for the attachment of a user interlock switch. The open-circuit voltage is +24 VDC with 2 k output impedance. Use a low-impedance external switch to connect this pin back to pin 13 to complete the interlock circuit.
  • Page 48 Monitoring Laser Status Via the ANALOG Port Note that pin 15 is the reference digital ground pin on the connector and should ANALOG be used with pins 4, 5, 9, 10, and 14. Controls, Indicators, and Connections...

  • Page 49: Chapter 5: Installation

    5: Installation HAPTER This section provides detailed instructions and notes for planning for and installing the Millennia eV laser system. If the user has not set up the laser before, or if is moving the laser system to a new location, review this section in its entirety before use. Pre-Installation Check Required Tools The following items are required in order to install the system:...

  • Page 50: Mounting The Laser Head

    Mounting the Laser Head Mounting the Laser Head Following standard practice, mount the laser head on a suitable flat surface. Carefully remove the laser head from the Mylar bag and set it on the table. DO NOT DROP the laser head onto the table.

  • Page 51: Ac Power Considerations

    The Millennia eV system requires a chiller that meets the requirements shown in Table 3-1. Spectra-Physics offers a chiller that is suitable for use with the Millennia eV laser system. If the user ordered the chiller from the factory with the laser, it meets these requirements.

  • Page 52: Installation

    Installing the Chiller If the user did not order the chiller from Spectra-Physics, make sure that it meets the requirements in Table 3-1. Spectra-Physics highly recommends speaking with one of our representatives about the chiller’s design and capabilities. Use distilled water only! The use of improper coolant in the laser can cause irreparable damage to the laser which would not be covered by the warranty.
  • Page 53 Top off the reservoir when necessary. 8. Verify that the chiller is set to 20°C. If the chiller was ordered from Spectra-Physics, it was pre-set at the factory to operate at 20°C. If the chiller was not purchased from Spectra-Physics, refer to the chiller’s user manual for instructions on how to set the temperature.
  • Page 54 Installing the Chiller Installation...

  • Page 55: Chapter 6: Preparing For Operation

    6: Preparing for Operation HAPTER Installing the USB Driver and User GUI Software The Millennia eV system can be controlled using the Millennia eV graphical user interface (GUI) control software that is included with the system, or it can be controlled by sending commands one at a time using the Communication window in the GUI control program.

  • Page 56: Figure 6-1 Setup Icon

    Installing the USB Driver and User GUI Software Figure 6-1 Setup icon 4. Wait for the installation process to initialize. Figure 6-2 Preparing to Install window 5. When the InstallShield wizard opens, click Next. Preparing for Operation...

  • Page 57: Figure 6-3 Installshield Wizard

    Installing the USB Driver and User GUI Software Figure 6-3 InstallShield wizard 6. Wait for the Setup process to finish. Figure 6-4 Setup Status window 7. In the Device Driver Installation wizard, click Next. Preparing for Operation...

  • Page 58: Figure 6-5 Device Driver Installation Wizard

    Installing the USB Driver and User GUI Software Figure 6-5 Device Driver Installation wizard 8. Wait for the drivers to install, and then click Next. Figure 6-6 Driver installation in progress 9. When the Completing the Device Driver Installation window opens, click Finish. Preparing for Operation...

  • Page 59: Installing Millennia Ev Gui Control Software

    Installing the USB Driver and User GUI Software Figure 6-7 Completing the Device Driver Installation window 10. Attach the provided USB cable from the Millennia eV laser head to the control computer, and power on the Millennia eV laser head by depressing the Power switch in the rear panel to the IN position.

  • Page 60: Figure 6-9 Setup File

    Figure 6-10 .NET license agreement 5. Wait for the Microsoft .NET Framework installation process to complete. Figure 6-11 .NET installation progress 6. When .NET Framework installation is complete, the Welcome to the Spectra-Physics Setup Wizard window opens. Click Next. Preparing for Operation...

  • Page 61: Figure 6-12 Welcome Window

    Figure 6-12 Welcome window 7. Select the installation folder. The software creates the directory (this is the default C:\Program Files\Spectra-Physics\Spectra-Physics location but the user can change the directory if needed by clicking Browse), and installs itself in that folder. Click Next.

  • Page 62: Figure 6-14 Confirm Installation Window

    Installing the USB Driver and User GUI Software Figure 6-14 Confirm installation window 9. Wait for the Spectra-Physics installation process to complete. Figure 6-15 Installing window 10. When the Installation Complete window opens, click Close. Preparing for Operation...

  • Page 63: Figure 6-16 Installation Complete Window

    Installing the USB Driver and User GUI Software Figure 6-16 Installation Complete window 11. The software places a Spectra-Physics icon on the desktop. When ready to start operation, double-click the desktop icon to start the control software. Figure 6-17 Spectra-Physics desktop icon...
  • Page 64 Installing the USB Driver and User GUI Software 6-10 Preparing for Operation...

  • Page 65: Chapter 7: Operation

    The procedures in this chapter assume that the Millennia eV laser has been installed by a Spectra-Physics trained service technician, or by the user according to the instructions in Chapter 5, “Installation” and Chapter 6, “Preparing for Operation.” This means that the following tasks are completed: The chiller is installed properly, filled with distilled water, and set to 20°C.

  • Page 66: Millennia Ev Gui Menus

    Millennia eV GUI Menus Millennia eV GUI Menus This section describes the controls and indicators that are shown in the Millennia eV GUI screen. The Main Menu The laser operator can monitor all laser conditions from this menu. All the basic laser operations can be also performed from this menu.

  • Page 67: The View Button

    Millennia eV GUI Menus Table 7-1 Main menu features Feature Description Laser ON/OFF box Emission Indicator: Turns bright green when the laser is on and turns dark green when the laser is off. ON/OFF Toggle Switch: Toggles the laser emission on and off. To turn on laser emission, flip this switch to ON, then click the OK button that appears on the pop-up menu.
  • Page 68 Millennia eV GUI Menus The Communication Window Clicking Communication in the View menu opens the Communication window. This is a terminal window that provides an alternative to sending and receiving commands. Appendix A, “Programming Reference Guide,” contains a list of all serial commands and queries.

  • Page 69: Figure 7-4 Oven Window

    Millennia eV GUI Menus The SHG Oven Window Clicking SHG Oven in the View menu opens the Oven window. This window allows the user to optimize the SHG crystal temperature. Figure 7-4 Oven window The indicators and controls in the Oven window are described in Table 7-3. Table 7-3 SHG Oven window features Feature...

  • Page 70: Start-Up Sequence

    Start-up Sequence The About Window Clicking About in the View menu opens the About window. This window shows the laser model, the firmware version, the FPGA version, and the software GUI version. This is for checking information only. Clicking the OK button brings the GUI back to the main menu.

  • Page 71: Figure 7-6 Gui Connection In Progress

    Start-up Sequence 5. Verify the USB or RS-232 connection to the laser, then turn on the control computer and start the Millennia eV GUI software program. 6. Wait for the GUI to connect. Figure 7-6 GUI connection in progress 7. If the connection is successful, the GUI goes to the main menu automatically. This initialization process takes several seconds to complete.

  • Page 72: Operating The Laser

    Operating the Laser Operating the Laser Turning the Laser On and Off If the System Status indicator is green, the user can turn the laser on by clicking the Emission toggle switch to ON. If any faults exist, the toggle switch is ON/OFF ON/OFF deactivated and the user cannot turn on the laser until all faults are cleared.

  • Page 73: Using Serial Commands

    Operating the Laser Using Serial Commands The Communication window can be also used to send and receive commands via a separate terminal. Refer to “The Communication Window” and Appendix A, “Programming Reference Guide,” for information about using serial commands and queries.
  • Page 74 Operating the Laser 6. Verify that the current is set to 2A by sending ?CS command. The response should be 2. If not, redo step 5 and verify again until 2 is received. 7. Turn on the laser (Main Menu control). It should reach 2A within about a minute of turning on the laser.

  • Page 75: Chapter 8: Maintenance

    This chapter provides information on how to maintain the Millennia eV laser system and how to diagnose problems should any occur. The Spectra-Physics Millennia eV laser is a Class IV — High-Power Laser whose beam is, by definition, a safety and fire hazard. Take precautions to prevent accidental exposure to both direct and reflected beams.

  • Page 76: Diagnostics And Troubleshooting

    If there is a problem with the Millennia eV laser that the user cannot resolve after using this basic diagnostics section, contact a Spectra-Physics service representative for further assistance. Contact information for service centers is provided in Chapter 9, “Customer Service.”...

  • Page 77: Troubleshooting Guide

    Diagnostics and Troubleshooting Table 8-2 Non-event faults Event Description Action Required Laser does not power on Check that all cables are securely connected. Verify that input voltage is 48 VDC ± 2 V. Laser head temperature is outside the Allow the laser to warm up for at least 20 minutes. operating range Laser is not warmed up Allow the laser to warm up for at least 20 minutes.
  • Page 78 Bad transverse mode Laser is not warmed up Allow the laser to warm up for at least 20 minutes. Output window is dirty Clean the laser head output window. Nonlinear crystals have reached end of life Contact a Spectra-Physics service representative. Maintenance...

  • Page 79: Chapter 9: Customer Service

    Contacting Customer Service Thank you for your purchase of Spectra-Physics instruments! At Spectra-Physics, we take great pride in the reliability of our products. Considerable emphasis has been placed on controlled manufacturing methods and quality control throughout the manufacturing process. Nevertheless, even the finest precision instruments need occasional service.

  • Page 80: Return Policy And Instructions

    To return the units to Spectra-Physics for service, repair, or upgrade, use the original crates and packing material to repack the units. Spectra-Physics encourages the use of the original crates and packing material to secure instruments during shipment.

  • Page 81: Service Centers

    Service Centers The replacement of internal Millennia eV system components must only be performed by personnel trained in these specific procedures by Spectra-Physics. Do not attempt to replace an internal system component. Unauthorized repair voids the warranty. Service Centers Table 9-1...
  • Page 82 Japan (West) Spectra-Physics K.K. Nishi-Honmachi Solar Building, 3-1-43 Nishi-Honmachi, Nishi-ku Osaka 550-0005 Japan Telephone: +81-6-4390-6770 Fax: +81-6-4390-2760 E-mail: spectra-physics@splasers.co.jp Netherlands Newport Spectra-Physics BV Vechtensteinlaan 12-16 3555 XS Utrecht Netherlands Telephone: +31-30-659-21-11 Fax: +31-30-659-21-20 E-mail: netherlands@newport.com Singapore Newport Opto-Electronics Technologies Private Ltd.
  • Page 83 Service Centers Table 9-1 Service centers (Continued) Location Contact Details United Kingdom Newport Spectra-Physics Ltd. Unit 7, Library Avenue, Harwell Oxford Didcot, Oxfordshire, OX11 0SG Telephone: +44 (0) 1235 432 710 Fax: +44 (0) 1235 821 045 E-mail: uk@newport.com United States and Export Countries...
  • Page 84 Service Centers Customer Service...

  • Page 85: Appendix A: Programming Reference Guide

    A: Programming Reference PPENDIX Guide Conventions The user can issue commands and create programs for operating the Millennia eV system using the Standard Commands for Programmable Instruments (SCPI) serial command and query language described on the next few pages.  A line of text sent to the Millennia eV system ...

  • Page 86: Basic Commands

    Basic Commands Basic Commands The most common commands are listed in this section, such as turning the laser on and off, opening and closing the shutter, commanding diode current, and verifying system output power. C1:<f> or C:<f> ?C1:<f> or ?C<f> Set Diode Current Range: 0.00 ≤...
  • Page 87 Basic Commands Query System Status This query returns the current system status as an ASCII string. Example: ?F < > What is the current laser head status? SYSTEM OK < >< > or The system is OK. KEY ILK < ><...
  • Page 88 Basic Commands Diode On This command turns on the laser diode. It has no effect unless the system is ready to turn on. When this command executes, the emission indicator lights on the laser head illuminates. Then the laser diode is energized after a delay of approximately 3 seconds. Example: ON<CR>...

  • Page 89: Important Commands

    Important Commands This command opens and closes the shutter on the laser head. The query ?SHT returns the present shutter position as a string, 0 (CLOSED) or 1 (OPEN). The query ?SHTS returns the last set shutter position as a string, 0 (CLOSED) or 1 (OPEN).
  • Page 90 Important Commands Note that the regulator implements a controlled ramp up to prevent thermal shock to the crystal. Typical ramp time is approximately 10 minutes from a cold start. The query returns the actual SHG crystal temperature as measured by the ADC converter.
  • Page 91 Important Commands Example: ?T < > What is the temperature of the laser diode? 22.33 < >< > The temperature of the laser diode is 22.33°C. Query Chassis Temperature Range: 0 0 ≤ f ≤ 50.00 This query returns the actual laser chassis temperature in degrees Celsius. Example: ?CT <...

  • Page 92: Less Common Commands

    Less Common Commands Example: USER:SET:1 < Restore the parameter settings in 1. (The 1 parameter set is > restored from memory.) Less Common Commands BAUDRATE:<n> ?BAUDRATE Set/Query Serial Baud Rate Range: n = 110, 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600 Default = 115200 This command sets the serial port baud rate and stores the value in flash memory.
  • Page 93 Less Common Commands CAL:POW:PCAL:<f> ?CAL:POW:PCAL Recalibrate/Query Power Monitor Range: 1.00 ≤ f ≤ 40.00 Default: 0.0 This command is used to recalibrate the internal power monitor. To use this command, first turn the laser OFF and establish the zero-point calibration with the CAL:POW:ZERO command.
  • Page 94 Less Common Commands ?DCL Query Diode Current Limit Range: 0.00 ≤ f ≤ 12.00 Default = 1.0 This query returns the laser diode current limit (in amps) from memory. Example: ?DCL < > What is the laser diode current limit? 3.50 <...
  • Page 95 Less Common Commands Example: ?DIAG:TIME:READ < > What is the system’s current time? 2011-2-3 09:44:51< >< > The current day is 2/3/2011 and the time is 9:44:51. DIAG:USB:MASS Enable Flash This command enables the use of the USB port as a flash drive connection and allows access to the datalog files.
  • Page 96 Less Common Commands Example: ECHO:16 < > Set the termination characters to < >< >. ? ECHO< > What is the current termination character setting? 16< >< > The current setting is < >< >. ?HEADHRS Query Laser Hours Range: 0.0 ≤ f ≤ 10000000.00 This query returns the number of hours the laser head has been on.
  • Page 97 Less Common Commands Example: ?PSHRS < > How many hours has the Millennia eV PC board been on? 1328.46 < >< > The Millennia eV PC board has been on a total of 1328.46 hours. *STB? Query Status Byte This query returns the system status byte. Note that the reply needs to be converted to hex value.
  • Page 98 Less Common Commands A-14...

  • Page 99: Form For Problems And Solutions

    We have provided this form to encourage you to tell us about any difficulties you have experienced in either using your Spectra-Physics instrument or its manual — problems that did not require a formal call or letter to our service or marketing departments, but that you feel should be remedied. We are always interested in improving our products and manuals and we appreciate all suggestions.

  • Page 100: Notes

    Notes Notes-1...
  • Page 101 Notes-2...
  • Page 102 Notes-3...
  • Page 103 Notes-4...
  • Page 104 Notes-5...
  • Page 105 Notes-6...

  • Page 106: Index

    Index Numerics ?D A-2 ?DCD A-9 15-pin analog connector 4-3, 4-4 ?DCL A-10 48 V power connector 4-2 ?DH A-10 9-pin RS-232 connector 4-3 DIAG:DEFAULT A-10 DIAG:REBOOT A-10 ?DIAG:TIME:READ A-10 ?DIAG:USB:MASS A-11 abbreviations, standard xvii ?DIAG:USB:VIRT A-11 acronyms, standard xviii ?DSN A-11 addresses, global service centers 9-3 ECHO A-11...
  • Page 107 CPU, rebooting A-10 feedback mode commands A-5 current headroom delta A-9 limit A-10 customer service control software requirements 6-1 contacting Spectra-Physics 9-1 menu descriptions 7-2 global service centers 9-3 user-created 2-5 ordering phone numbers 9-2 question form Form-1 support information 9-1...
  • Page 108 LED indicators, sync 4-5 light pick-off control 3-3 report form Form-1 requirements CE electrical v maintenance procedures 8-1 software 6-1 utilities 5-1 Millennia eV system applications 1-1 return policy and instructions 9-2 CE Declaration of Conformity 2-9 RS-232 connector components 3-1 description 4-3 connecting 5-2 pinouts 4-4...
  • Page 109 GUI 2-5 environmental v FCC regulations vi general 3-3 version, finding A-12 operating 3-3 Spectra-Physics contact information 9-3 standard abbreviations xvii fault indicator 2-3 STATUS warnings support information 9-1 label illustrations 2-8 system control 1-1 symbol conventions vii...

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