EXFO T100S-HP Series User Manual
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EXFO T100S-HP Series User Manual

High power tunable laser
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T100S-HP
High Power Tunable Laser
User Guide
www.EXFO.com
T100SHP_UM_6.06v1.2

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  • Page 1 T100S-HP High Power Tunable Laser User Guide www.EXFO.com T100SHP_UM_6.06v1.2...

  • Page 3: About This Manual

    About This Manual Subject This manual explains how to install, set-up and use the T100S-HP tunable external cavity laser. It also explains how to perform basic maintenance operations. The remote control of the T100S-HP is described in T100S-HP Programming Guide. Application This document applies to T100S-HP version 6.06 and later versions.
  • Page 4 (electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise) without the prior written permission of EXFO. Product Warranty For detailed information about the sales terms and conditions, visit the EXFO web site at and Limitation of www.exfo.com/how-to-buy/sales-terms-conditions Warranty...

  • Page 5: Table Of Contents

    Table of Contents About This Manual ............................. 3 Table of Contents ............................5 Important Safety Information for Your Product................... 7 Product Presentation ........................11 Product Features..........................11 Technical Specifications ........................12 Product Overview ..........................15 1.3.1 Description of the Front Panel ....................15 1.3.2 Description of the Rear Panel....................
  • Page 6 Table of Contents Enabling Active Wavelength Monitoring .................... 39 Setting Up the Product for Active Wavelength Monitoring ............... 39 Performing Wavelength Monitoring....................40 Using the Auxiliary Inputs and Outputs ....................43 Implementing External Modulation..................... 43 8.1.1 Implementing Low Frequency Intensity Modulation ............43 8.1.2 Implementing High Frequency Intensity Modulation............

  • Page 7: Important Safety Information For Your Product

    Keep this information close at hand. You can obtain a copy of the complete user guide for your product at the following link: www.EXFO.com Important • If you see the symbol on your unit, make sure that you refer to the instructions provided in this safety notice.
  • Page 8 If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. • Use only accessories designed for your unit and approved by EXFO. For a complete list of accessories available for your unit, see its technical specifications or contact EXFO.
  • Page 9 Important Safety Information for Your Product Optical Safety Safety Symbols on Your Product Symbol Meaning This symbol on your product indicates that the unit is equipped with a laser source, or that it can be used with instrument equipped with a laser source.
  • Page 10 Important Safety Information for Your Product T100S-HP User Guide...

  • Page 11: Product Presentation

    1. Product Presentation Product Features The T100S-HP is a high-performance, self-aligned external cavity laser. It is a general- purpose instrument designed for fiber-optic system testing and precise WDM component testing, as well as for research and development in the field of optical communications.

  • Page 12: Technical Specifications

    Product Presentation Feature Description Multiple modulation Easy direct analog and digital modulation of the laser: capability • Low frequency modulation • High frequency modulation. • Coherence control. Easy system integration A fully integrated system featuring computer interfaces, on- board software, and analog inputs/outputs to allow all operations to be performed in remote mode and to make integration into a test set-up easy.

  • Page 13: Table 2: Technical Specifications

    Product Presentation Essential Models Extended Range Models RS-232C and GPIB (IEEE-488.1) Communication interfaces Temperature / Humidity range +15 °C to +30 °C (+60 °F to +85 °F) / <80% (non-condensing) Electrical Power supply 100-240 V ; 50/60 Hz Specifications Maximum input 5 A rms current Maximum power...

  • Page 14: Table 4: Valid Range For Parameter Settings

    Time at each scan step 0.1-25 s (Pause timer) Table 4: Valid Range for Parameter Settings Available Accessories and Replaceable Parts For information about accessories and replaceable parts, contact your EXFO sales representative. Name Description Fuse see Technical Specifications, p. 12...

  • Page 15: Product Overview

    Product Presentation Product Overview The T100S-HP Tunable External Cavity Laser is delivered with the following standard accessories: • A power supply cord • An FC/PC-FC/APC adapter cable • A safety-lock key • A USB key containing the user documentation and available software For more information on replaceable parts, see section Available Accessories and Replaceable Parts, p.
  • Page 16 Product Presentation MODE Area Description The MODE area allows you to access and change the parameters that you want to configure. It consists of 8 keys that light up when the corresponding function is active. Function Keys Description λ.f Edits the current value of the emission wavelength λ or the optical frequency f., and enables the entry of a new value (see section Changing the Emission Wavelength or Frequency, p.

  • Page 17: Table 7: Mode Area - Function Keys

    Product Presentation Description STEP To activate wavelength step-mode (see section Implementing Step-by-Step Wavelength Scanning, p. 29) or sweep-mode scanning (see section Implementing Continuous Wavelength Sweep (hop-free), p. 31). To disable/enable backlash suppression of the micrometer screw (see section Turning On/Off Backlash Suppression of the Micrometer Screw, p.

  • Page 18: Description Of The Rear Panel

    Product Presentation 1.3.2 Description of the Rear Panel Modulation Sync TTL Outputs Modulation Output Power Switch Fuse Drawer Remote interlock Input MAINS (SUBD-9 connector) Power Cord for laser safety Connector High-frequency Modulation Input Low-frequency Modulation Input Fine Scanning and Coherence Control Input RS-232 C Remote Control...

  • Page 19: Table 9: Rear Panel Labels

    Product Presentation Inputs • HF Mod: SMA connector for high-frequency modulation input. • LF Mod: BNC connector for low-frequency modulation input. • FSC: BNC connector for fine scanning and coherence control. • Remote Interlock: SUBD-9 connector for laser safety (safety interlock is mandatory for Class 3B and 4 laser products.
  • Page 20 Product Presentation T100S-HP User Guide...

  • Page 21: Installing And Connecting The Product

    2. Set the product on a flat stable surface free of excessive vibration. 3. Keep the original shipping container, for use in case the product needs to be returned to EXFO for repair or servicing. 4. Allow the flow of air from the cooling fan to circulate freely around the product and remove any equipment or paper that could block the air-flow.

  • Page 22: Connecting The T100S-Hp To A Power Source

    Installing and Connecting the Product Connecting the T100S-HP to a Power Source Before Starting Warning • Make sure the product power source does not apply more than 265 Volts RMS between the supply conductors or between either of the supply conductors and the ground.

  • Page 23: Installing The Remote Interlock

    Installing and Connecting the Product Procedure 1. Make sure fiber-optic connectors are clean. 2. On the front panel, in the OUTPUT area, remove the protective cap and connect external optical components and instruments to the T100S-HP via the FC/APC fiber- optic connector.
  • Page 24 Installing and Connecting the Product T100S-HP User Guide...

  • Page 25: Turning On/Off And Initializing The Product

    3. Turning on/off and Initializing the Product Initializing the Laser Before Starting Caution If the T100S-HP has previously been shut down (see section Shutting Down the Product, p. 26), you must wait at least thirty seconds before initializing the laser again. Warning While the system initializes the laser, it performs the internal wavelength referencing just after the initialization routine: the T100S-HP produces a laser...

  • Page 26: Enabling/Disabling The Laser Output

    Turning on/off and Initializing the Product Enabling/Disabling the Laser Output Subject For laser safety reasons, the T100S-HP laser output is not immediately enabled after system turn-on and initialization. After the initialization routine, the T100S-HP is in Disabled mode, as shown on the third display (DATA area).

  • Page 27: Setting Up The Emission Wavelength Or Frequency

    4. Setting Up the Emission Wavelength or Frequency Changing the Emission Wavelength or Frequency Subject To change the emission wavelength/frequency, you can use the numeric keypad or the rotary knob. Procedure 1. In the MODE area, press the λ.f key. The corresponding LED indicator is lit and the current parameter value is displayed.

  • Page 28: Setting A Predefined Increment/Decrement Step

    Setting Up the Emission Wavelength or Frequency Setting a Predefined Increment/Decrement Step Subject The following procedure explains how to change the wavelength increment (STEP) value. Procedure 1. In the MODE area, press the STEP key. 2. Using the numeric keypad, enter the wanted wavelength or frequency step. Example for wavelength (nm): 0.5 3.

  • Page 29: Implementing Step-By-Step Wavelength Scanning

    Setting Up the Emission Wavelength or Frequency Implementing Step-by-Step Wavelength Scanning Subject Wavelength scanning enables the T100S-HP tunable laser to broadcast on a different wavelength at each time interval. It incrementally scans the entire wavelength scanning range that you specified. The following flowchart illustrates the wavelength scan process: The system is set to the first scan wavelength...
  • Page 30 Setting Up the Emission Wavelength or Frequency Procedure 1. Press the 2nd + STEP keys to activate the scan mode. 2. Press Enter to validate. The DATA area display prompts you to enter the lower wavelength scan limit while the current setting is displayed. 3.

  • Page 31: Implementing Continuous Wavelength Sweep (Hop-Free)

    Setting Up the Emission Wavelength or Frequency Implementing Continuous Wavelength Sweep (hop-free) The T100S-HP allows you to perform truly continuous, mode-hope-free scans in swept- mode over the entire operational wavelength range. 4.5.1 Implementing Wavelength Sweep Procedure 1. Press the 2nd + STEP keys to activate the scan mode. The DATA area display prompts you to enter the lower wavelength scan limit while the current setting is displayed.

  • Page 32: Setting The Sweep Speed

    Setting Up the Emission Wavelength or Frequency 4.5.2 Setting the Sweep Speed Subject You can set the sweeping process to scan from a lower to an upper wavelength value, at a user-specified speed. When the T100S-HP has reached the upper wavelength limit, it returns to the initial wavelength value at maximum speed (i.e.

  • Page 33: Changing The Optical Output Power And Diode Current

    5. Changing the Optical Output Power and Diode Current Changing the Optical Output Power Subject The optical output power is displayed in the DATA area, at the right of the mW/dBm key. Procedure 1. In the MODE area, press the P key. The corresponding LED indicator is lit and the current parameter value is displayed.

  • Page 34: Switching Between Constant-Power And Constant-Current Modes

    Changing the Optical Output Power and Diode Current Switching Between Constant-Power and Constant-Current Modes Subject • The constant-current mode enables you to change the wavelength/frequency of the laser while maintaining the diode current level. • The constant-power mode enables you to change the wavelength/frequency of the laser while maintaining the output power level.

  • Page 35: Disabling/Enabling Active Cavity Control

    Changing the Optical Output Power and Diode Current Disabling/Enabling Active Cavity Control Subject The T100S-HP is equipped with on-board active cavity control. When you turn on the T100S-HP after the initialization routine is complete, the system switches automatically to APC (constant power) mode with active cavity control (the APC LED is on).

  • Page 36: Changing The Laser Diode Current

    Changing the Optical Output Power and Diode Current Changing the Laser Diode Current Subject The laser diode current is displayed in the DATA area, at the right of the I key. To change the laser diode current, proceed as follows: Procedure 1.

  • Page 37: Calibrating The Product

    6. Calibrating the Product Performing Power Calibration Subject The power calibration procedure calibrates the laser output power. The procedure requires the use of an optical power meter. Caution This procedure corrects the factory-set calibration data. • Do not perform this procedure unless you actually intend to correct this data.

  • Page 38: Performing Internal Wavelength Referencing

    Calibrating the Product Performing Internal Wavelength Referencing Subject The T100S-HP internal referencing system ensures optimum calibration of the laser source as soon as the system starts. We recommend you to perform an auto-calibration after the first half hour of system warm-up or use.

  • Page 39: Enabling Active Wavelength Monitoring

    As an example, with a Burleigh-EXFO wavemeter, use a DB9 male-male straight-through serial cable to connect the T100S-HP RS-232 C port to the wavemeter serial port.

  • Page 40: Performing Wavelength Monitoring

    Enabling Active Wavelength Monitoring 2. Connect a communication link between the T100S-HP tunable laser source and the wavemeter via the RS-232 C interface: make sure the RS-232 C cable connection meets the following pin assignment on the T100S-HP SubD-9 connector: •...
  • Page 41 Enabling Active Wavelength Monitoring The following procedure explains how to perform wavelength monitoring of the T100S- HP using a wavemeter. Procedure 1. Configure the wavemeter remote interface with the following parameters: • Remote: [On] • RS-232: [On] • Baud: [9600] •...
  • Page 42 Enabling Active Wavelength Monitoring T100S-HP User Guide...

  • Page 43: Using The Auxiliary Inputs And Outputs

    8. Using the Auxiliary Inputs and Outputs The auxiliary input and output connectors are located on the rear panel of the T100S-HP, as described in section Description of the Rear Panel, p. 18. Implementing External Modulation 8.1.1 Implementing Low Frequency Intensity Modulation Subject You can implement low frequency intensity modulation of the output beam: •...

  • Page 44: Figure 8: Low Frequency Modulation Setup

    Using the Auxiliary Inputs and Outputs • Make sure to use a 50 Ω BNC cord to connect the T100S-HP and the waveform generator. T100S-HP Laser Diode Source LF Mod. BNC Connector LF Modulation Circuit bias Polarization Current diode BNC Cord Ω...

  • Page 45: Figure 9: Resulting Lf-Modulated Diode Current

    Using the Auxiliary Inputs and Outputs Current set on T100S-HP without modulation bias diode Diode modulated current  bias diode bias Input modulated current Figure 9: Resulting LF-modulated diode current In the APC mode, the output power is controlled in order to remain constant. In principle this is not compatible with a modulation of the output power.

  • Page 46: Implementing High Frequency Intensity Modulation

    Using the Auxiliary Inputs and Outputs 8.1.2 Implementing High Frequency Intensity Modulation Subject The HF Mod input allows you to increase the total diode current by applying voltage to the HF Mod SMA connector. A valid high frequency modulation signal applied to the SMA port can range from 30 KHz up to 200 MHz.

  • Page 47: Figure 11: Resulting Hf-Modulated Diode Current

    Using the Auxiliary Inputs and Outputs The relationship between the voltage at the HF Mod input and the current added to the diode is given by: internal where: • is the added current • is the voltage applied to the HF Mod input •...

  • Page 48: Wavelength Modulation

    Using the Auxiliary Inputs and Outputs If the voltage applied to the HF Mod input is an AC signal with no DC component, and whose peak-to-peak amplitude is V , the above condition becomes: Vpp < 2 x R internal bias Vpp <...

  • Page 49: Output Signals

    Using the Auxiliary Inputs and Outputs Output Signals 8.2.1 Available TTL Output Signals A 7.2 kHz TTL modulation signal is provided on the following BNC connectors (see section Description of the Rear Panel, p. 18): • Mod Out: internal modulation signal •...
  • Page 50 Using the Auxiliary Inputs and Outputs T100S-HP User Guide...

  • Page 51: Verifying Performances

    9. Verifying Performances Use the procedures in this section to verify the following warranted specifications of the T100S-HP: • Absolute wavelength accuracy • Wavelength range and output power • Tuning repeatability • Side mode suppression • Return loss The recommended calibration interval is one year. Warning •...

  • Page 52: Verifying The Absolute Wavelength Accuracy

    Verifying Performances Verifying the Absolute Wavelength Accuracy Subject The following procedure verifies that the wavelength settings agree with the measured wavelengths over the entire specification range. If these values do not match the absolute wavelength specification, you may calibrate the lower and upper wavelength setting limits by using an external wavemeter, as described below.

  • Page 53: Verifying Side Mode Suppression

    If the performance does not meet warranted specifications, a complete calibration of the product may be required. Some calibration steps require the adjustment of internal components including the laser head. Therefore, a complete calibration must be performed by authorized EXFO staff only. T100S-HP User Guide...
  • Page 54 Verifying Performances T100S-HP User Guide...

  • Page 55: 10. Performing Basic Maintenance Operations

    Do not make any service or maintenance repairs of any kind to the T100S-HP laser head. You must not remove the protective cover of the T100S-HP laser head. Refer servicing to authorized EXFO personnel only. 10.1 Cleaning and Caring for Optical Connectors and Fibers...

  • Page 56: Cleaning The Product

    Performing Basic Maintenance Operations 3. Moisten a clean optical swab with isopropyl alcohol and lightly swab the surfaces of the connectors. 4. Spray the clean compressed air on the connectors again to remove any loose particles or isopropyl alcohol. 5. To clean the internal connector, unscrew the plug, slightly pull it towards you, and clean the internal connector.

  • Page 57: Packaging For Shipment

    Performing Basic Maintenance Operations 10.4 Packaging for Shipment If you need to return the T100S-HP to EXFO for servicing or calibration, use the original packaging. For instructions on returning the instrument, please contact EXFO (see section Contact Information, p. 4).
  • Page 58 Performing Basic Maintenance Operations T100S-HP User Guide...

  • Page 59: 11. Error And Warning Messages

    No factory calib. If this error message shows Turn Power off continuously, please contact the EXFO customer support service (see section Contact Information, p. 4). VALUE error The system parameter you are Press Enter. trying to configure is outside Press Enter.

  • Page 60: Table 13: Error And Warning Messages

    T100S-HP connection between the two tunable laser and the devices. wavemeter. • The wavemeter may not be • Please contact a EXFO compatible with the SCPI representative for a list of command set. compatible wavemeters. • The wavemeter remote •...

  • Page 61: Certification And Compliance

    Electronic test and measurement equipment is exempt from FCC part 15, subpart B compliance in the United States of America and from ICES-003 compliance in Canada. However, EXFO Inc. makes reasonable efforts to ensure compliance to the applicable standards. The limits set by these standards are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
  • Page 62 Certification and Compliance China Table of Toxic and Hazardous Substances CHINESE REGULATION ON RESTRICTION OF HAZARDOUS SUBSTANCES (RoHS) 中国关于危害物质限制的规定 NAMES AND CONTENTS OF THE TOXIC OR HAZARDOUS SUBSTANCES OR ELEMENTS CONTAINED IN THIS EXFO PRODUCT 包含在本 EXFO 产品中的有毒有害物质或元素的名称及含量 Part Name Lead Mercury...

  • Page 63: List Of Tables

    List of Tables Table 1: T100S-HP – Main Features ..............................12 Table 2: Technical Specifications ..............................13 Table 3: Environmental Specifications ............................13 Table 4: Valid Range for Parameter Settings ..........................14 Table 5: Available Accessories and Replaceable Parts ......................14 Table 6: DATA Area – Function Keys ...............................15 Table 7: MODE Area –...
  • Page 64 List of Tables T100S-HP User Guide...

  • Page 65: List Of Figures

    List of Figures Figure 1: Front Panel .............................. 15 Figure 2: Rear Panel ............................... 18 Figure 3: Possible operating positions (bench-top) ..................... 21 Figure 4: Remote Interlock SUBD-9 Connector ..................... 23 Figure 5: Wavelength scanning process ....................... 29 Figure 6: Instrument Setup for Wavelength Monitoring ..................39 Figure 7: Wavelength Monitoring Scheme ......................
  • Page 66 List of Figures T100S-HP User Guide...

  • Page 67: Index

    Index Current Saturation ............47 Symbols - key ..................17 . key ..................17 DATA area .................15 Decrement step ...............28 Numerics 2nd + 1 ................32 Diode current 2nd + 3 ................49 Change ..............36 2nd + APC .................35 Cutoff current ............44 2nd + FSC ................32 Saturation current ..........
  • Page 68 Index Initialization ..............25 Initializing................25 P key ................... 16 Inputs ................19 P output ..............18 Installation ................21 Package ................57 Internal modulation ............49 Panel Internal Wavelength Referencing ..... 11 Front ................15 Rear ................18 Parking ................26 Laser Pause Timer ..............14 Disabling ..............
  • Page 69 Index Monitoring ..............39 Valid range ................14 Range verification ..........52 Verification ...............51 Sweep ................ 31 Wavemeter use ............... 39 Warning messages ............59 λ λ output ..............18 Wavelength Change ..............27 λ.f key ................. 16 Modulation .............. 48 T100S-HP User Guide...
  • Page 70 Index T100S-HP User Guide...

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