Page 1 Koheras ADJUSTIK Low Noise Single Frequency Laser System PRODUCT GUIDE...
Page 2 PRODUCT GUIDE This guide includes the following NKT Photonics Lasers: Koheras ADJUSTIK Low Noise Single Frequency Laser System Koheras ADJUSTIK Product Guide Revision 1.0 01-2020 W-10456...
Page 3: Guide Overview
Terminology This guide may refer to the Koheras ADJUSTIK as “the laser”. In specific cases where a distinction is required, this guide will use the actual laser model names. Target audience This guide is for technical personnel involved in the selection, planning and deployment of lasers in laboratory and industrial settings.
Page 4 Chapter 5 — Includes descriptions of all NKT CONTROL “Using CONTROL” • menu, settings, and panel items. Chapter 6 — Includes information and procedures “Mechanical Installation” • on how to correctly install the laser chassis. Procedures within this chapter focus on providing adequate temperature regulation. Chapter 7 —...
Page 5: Table Of Contents
Guide Overview ........................3 Terminology ......................3 TABLES ........................11 FIGURES ........................13 PROCEDURES ....................... 15 Section 1 KOHERAS ADJUSTIK DESCRIPTION 1 Laser Description .......................19 Features and Options ..................19 Theory of operation ................... 20 Module variants ......................20 Center wavelength ..................... 20 Output power .......................
Page 6 Miscellaneous ......................27 Safety ........................27 Optical interface ......................27 Optical fibers, connectors and adapters ............27 Laser Control ......................28 User interface ...................... 28 Status LEDs ........................ 29 Chassis labels ......................30 2 Modulation ..........................33 Fast wavelength modulation ................. 33 Configuring external and internal wavelength modulation .....
Page 7 Wavelength display .....................47 W1 modulation ......................47 W1 mod. Gain ......................47 W1 mod. source ....................48 W1 mod. Coupling ....................48 W1 mod. Range .....................48 Power /current mode ..................49 Power ........................49 Power unit ......................49 Watchdog timer ....................50 Display backlight ....................50 IP Address ......................
Page 8 System info ......................67 Measurements ..................... 67 WL mod button and indicator ................67 Emission button ....................67 CONTROL settings ....................67 Wavelength modulation ..................68 Power/Current mode ...................71 Ethernet ......................... 72 Watchdog ......................72 Clock ........................73 View .........................74 CONTROL menu items .................... 74 Serial monitor ......................74 Application log .....................
Page 9 Connecting modulation signals ................85 Connecting the trigger input or output ............... 85 Input trigger ......................85 Output trigger ...................... 86 Connecting the optical output ................86 Appendices A Specifications ........................91 B Service and support Information .................. 95 Servicing the laser ....................95 Opening the laser chassis ................
Page 11: Tables
TABLES Table 1: ADJUSTIK variant specifications............... 20 Table 2: ADJUSTIK rear panel layout ................23 Table 3: Recommended power modes ................25 Table 4: Optical Interface Specifications ..............28 Table 5: Status LEDs......................29 Table 6: Module labels......................31 Table 7: Wavelength modulation settings ..............34 Table 8: Narrow vs wide band wavelength modulation..........
Page 13: Figures
FIGURES Figure 1: ADJUSTIK front panel ..................19 Figure 2: ADJUSTIK front panel layout ................22 Figure 3: Frequency response using wavelength modulation ........ 24 Figure 4: Top panel label locations ................30 Figure 5: Rear panel label location ................. 30 Figure 6: Differential input signal for wavelength modulation ........
Page 14 Figure 30: Setting the intensity level of the LCD panel back light ......50 Figure 31: IP address setting ..................... 50 Figure 32: GUI panel navigation ..................63 Figure 33: Panel dragged to a new location in the main window - ....... 64 Figure 34: Panels dragged outside the main window ..........
Page 15: Procedures
PROCEDURES Procedure 1: Connecting a PC to the laser using a USB cable ....... 53 Procedure 2: Connecting a PC to the laser using Ethernet ........55 Procedure 3: Turning on the laser using CONTROL..........58 Procedure 4: Turning on the laser using CONTRO4 ..........60 Procedure 5: Relocating panels ..................
Page 17: Koheras Adjustik Description
SECTION 1 KOHERAS ADJUSTIK DESCRIPTION This section provides a description of the laser and its chassis types. It includes the following topics: “Laser Description” on page 19 • “Module variants” on page 20 • “Laser features” on page 24 •...
Page 19: Laser Description
Laser Description The Koheras ADJUSTIK is a single frequency distributed feedback (DFB) fiber laser with passive vibration reduction. The laser system is housed within a rack mount control chassis which includes a front panel operational interface. The laser’s optical output is defined by an ultra-narrow line width in the Hertz range and exceptionally low frequency and intensity noise.
Page 20: Theory Of Operation
Due to the special Bragg grating, the single mode operation is constantly maintained and is stable over the entire operating frequency band of the laser. Module variants The Koheras ADJUSTIK is available in four variants. The variants are mainly classified by their wavelength and output power. describes the primary Table 1 technical differences between the variants.
Page 21: Tuning Types
“Fast wavelength modulation” on page 24). Note: Koheras ADJUSTIK lasers are fitted with Piezo tuning by default. If Piezo tuning is not required it must be specified when ordering the laser. Output power tuning Output power tuning is determined by the variant type: C15 and Y10 variants –...
Page 22: Figure 2 Adjustik Front Panel Layout
Front and rear panels Selection dial – use the dial to move the selection pointer among the menu • items and modify parameter values. Emission button – enables and disables emission (enables emission only if • the system meets safety and operational parameters.) Key switch –...
Page 23: Rear Panel
Optical specifications Rear panel shows the rear panel which includes the following connectors: Figure 2 AC inlet - standard IEC C-14 mains inlet connector • LEMO connector - 2 pin door interlock circuit • Modulation – Male DB-9 pin connector providing pins for wavelength input/ •...
Page 24: Laser Features
Laser features Laser features Thermal tuning The wavelength of the laser can be controlled using a thermal tuning technique that changes the temperature of the laser’s fiber. The fiber laser is mounted under tension on a substrate. When the temperature of the substrate changes, the laser cavity length also changes due to thermal contraction or expansion.
Page 25: External Cavity Stabilization
Laser features are higher in frequency. These modules are therefore more suitable for applications where modulations between 30 and 45 kHz are required. Note: The frequency response is relatively flat up to 20 kHz, but resonances are seen at frequencies at and above the first resonance occurring at approximately 30 kHz. Wavelength modulation can be used for frequencies above 20 kHz, but it is recom- mended to avoid modulating the laser at the resonance frequencies.
Page 26: Trigger
Auto-start will not turn ON the laser emission if after power-up, the interlock signal subsequently changes to high. Koheras ADJUSTIK & ACOUSTIK If the module is used within either the ADJUSTIK or ACOUSTIK chassis, auto-start is overruled and cannot start laser emissions even if the auto-start bit is set.
Page 27: Power Verification
Koheras ADJUSTIK Safety, Handling and Regulatory Information A paper copy of this document is included with your laser. If you do not have access it, you can download a copy from: https://www.nktphotonics.com/lasers-fibers/support/product-manuals/...
Page 28: Laser Control
96 Laser Control User interface The laser and any associated accessories are controlled using NKT Photonics CONTROL Graphical User Interface (GUI) installed on a PC or the front panel interface. As an option, the laser can also be controlled using NKTP’s Software Development Kit (SDK) for custom applications.
Page 29: Status Leds
ON Red Laser emission is ON. Laser emission is OFF. Note: the laser until you are familiar with the controls and have taken O NOT OPERATE all precautions necessary as described in the document: Koheras ADJUSTIK Safety, Handling and Regulatory Information.
Page 30: Chassis Labels
Chassis labels Chassis labels A Koheras ADJUSTIK chassis has a number of labels on it that indicate hazards, regulatory, or manufacturing information. The labels are located on the panels described in with the panels shown in Table 6 Figure 4...
Page 31: Table 6 Module Labels
Chassis labels Table 6 Module labels Label Panel Description Classification - Safety information stating the laser Emission emission hazards and the laser’s class Hazards rating. Manufacturing Rear Manufacturing information including address, part and serial number, date manufactured and regulatory compliance. Product Safety label showing the emission Information...
Page 32 Chassis labels...
Page 33: Modulation
Configuring The wavelength of a Koheras ADJUSTIK can be modulated with either: external and internal wavelength an external electrical signal applied to the modulation input, •...
Page 34: Wavelength+/- Signal
Fast wavelength modulation Table 7 Wavelength modulation settings Setting Function For CONTROL see For SDK see External wavelength Sets wavelength page 68 page 84 modulation modulation to external signal mode. Internal function Sets wavelength page 69 page 84 generator modulation to internal function generator mode.
Page 35: Differential Input
Fast wavelength modulation Differential input When configured as an input, the Wavelength+/- interface can be connected to a differential signal with an amplitude up to 2x 5 Vpp as shown in Figure Figure 6 Differential input signal for wavelength modulation Note: To prevent noise being induced that could create undesired phase noise, it is recommended to disable the wavelength modulation setting when it is not in...
Page 36: Figure 8: Single-Ended Input Signal With 2.5 V
Fast wavelength modulation 2.5 V or GND. A single-ended 5 Vpp signal generates half the modulation compared to a differential 2x5 Vpp input. Figure 8 Single-ended input signal with 2.5 V shows the Wavelength- pin connected to the same potential as the Figure 9 common mode voltage of the Wavelength+ signal, the optical output will be modulated around its center wavelength.
Page 37: Wavelength- To Gnd
Fast wavelength modulation Wavelength- to 11, the Wavelength- signal is connected to GND and the Wavelength+ Figure signal is modulated between 0 and 5 V as shown in 10, the optical output Figure is modulated above its thermally controlled wavelength. Figure 10 Single-ended input signal with GND on an unused branch Figure 11 Single-ended input connections with 0 V on an unused branch...
Page 38: Differential Output
1.6 Hz. Setting the Koheras ADJUSTIK X15 to DC coupling allows the laser to lock coupling to an external reference signal that for example, uses the Pound Drever Hall technique.
Page 39: Figure 13 Adjustik X15 Wavelength Modulation Response
Fast wavelength modulation (E15/C15/Y10) shows the response when the modulation signal varies Figure 14 from 1 to 100 kHz. X15 frequency response shows the measured frequency response of the ADJUSTIK X15 for both Figure 13 wide and narrow ranges: Wide – 600 MHz tuning at low frequencies with a smooth roll-off to a 3 dB •...
Page 40: Amplitude Modulation
Amplitude modulation Narrow – 10x (times) less with a 3 dB cut-off at 1 kHz • Figure 14 ADJUSTIK E15/C15/Y10 wavelength modulation response Amplitude modulation If the laser includes the VOA option, the output emission power level can be modulated. The power amplitude can be modulated with either an electrical input signal or the built-in function generator.
Page 41: External Cavity Stabilization (Adjustik X15)
V and +5 V. Figure 16 Single-ended input for amplitude modulation External cavity stabilization (ADJUSTIK X15) A Koheras ADJUSTIK X15 can be locked to an external cavity to obtain lower low- frequency phase noise by using the Pound-Drever-Hall technique. Figure 17...
Page 42: Setting Up External Cavity Stabilization
External cavity stabilization (ADJUSTIK X15) depicts a general layout of the devices in a Pound-Drever-Hall configuration used with an X15 ADJUSTIK. Figure 17 ADJUSTIK X15 in Pound-Drever-Hall configuration Setting up external Follow the steps below to configure and enable external cavity locking: cavity stabilization Enable external modulation (see “Modulation Source”...
Page 43: Operating The Laser
SECTION 2 OPERATING THE LASER This section describes how to manage and operate the laser and includes the chapters: “Communicating with the Laser” on page 53 • “Turning ON the Laser” on page 57 • “Using CONTROL” on page 63 •...
Page 45: Front Panel Menu
Front Panel Menu Overview The front panel features an LCD system menu and controls that can be used to configure and operate the laser. The menu items available are listed in Table Table 9 Front panel menu items Menu Item Function Top menu Displays the wavelength, output power and...
Page 46: Top Menu
Overview Navigate to sub-menu’s from the top level. • Adjust parameter values once selected with the enter button. • Emission button - see “Emission button” on page 50 Press this button to: Enable laser emission. • Disable laser emission. • General navigation When idle, the display panel always returns to the top menu level.
Page 47: Wavelength Display
Overview Figure 19 Wavelength setting menu Wavelength display The Wavelength display menu (Figure 20) sets the center wavelength to be displayed as either absolute (the actual wavelength) or relative (the offset from the standard wavelength). Changing between absolute and relative with this menu affects both the Top menu and Wavelength menu.
Page 48: W1 Mod. Source
Overview Figure 22 Wavelength modulation gain setting menu W1 mod. source The W1 mod. Source menu sets the modulation source used for wavelength modulation. The source can be set to either Internal (internal generator) or External (signal applied to the wavelength modulation pins). Figure 23 Wavelength modulation source signal set to internal W1 mod.
Page 49: Power /Current Mode
Overview Power /current The Power/current mode menu (Figure 26) sets the operation mode of the laser mode to either (constant) Power mode or (constant) Current mode. Refer to “.Operating mode” on page 25 for further information on setting the mode. Figure 26 Operation mode set to constant power mode Power Use the Power menu to tune the level of the laser’s output emission power.
Page 50: Watchdog Timer
Warning: Turning on the laser will emit hazardous laser Class 4 radiation. Ensure to observe and implement all safety regulations, warnings and cautions in this guide and the Koheras ADJUSTIK Safety, Handling and Regulatory Information document before continuing.
Page 51 Caution: Do not turn on the laser if it has been exposed to temperature and hu- midity beyond the operating specifications. The Koheras ADJUSTIK is designed to operated in a non-condensing environment from +18 to +30°C (or 35°C). Before turning on the laser, allow it at least 30 minutes to reach room temperature. Turn- ing on a laser that is too cold or hot may lead to the system being damaged.
Page 52 Overview...
Page 53: Communicating With The Laser
PC and the laser using either an USB or Ethernet connection. CONTROL software The laser is shipped with the NKT Photonics CONTROL software installer on a USB key. You can also download the most recent CONTROL software from the following link: https://www.nktphotonics.com/lasers-fibers/support/software-drivers/...
Page 54: Ethernet Connection
Connecting the laser to a PC with CONTROL Action Launch the CONTROL software by either: clicking on Windows – Start – Programs – NKT Photonics –CONTROL – or – double clicking the CONTROL shortcut on the desktop The CONTROL window opens.
Page 55 Connecting the laser to a PC with CONTROL Procedure 2 Connecting a PC to the laser using Ethernet Action Open CONTROL and from the Connect menu list select Config to open the Port Configuration window. In the Port Configuration window, click on the “Create new port”...
Page 56 Connecting the laser to a PC with CONTROL Action To delete or modify a configured port: Delete button 1 Highlight the port and:Click the delete button - or - 2 Click the edit button 3 Click Save when finished. Edit button Using a CAT5 or better Ethernet cable, connect the laser’s Ethernet port either directly to a CONTROL PC Ethernet port or to a subnet accessible by the PC.
Page 57: Turning On The Laser
Warning: Turning on the laser will emit hazardous laser Class 3B radiation. Ensure to observe and implement all safety regulations, warnings and cautions in this guide and the Koheras ADJUSTIK Safety, Handling and Regulatory Information document before continuing. Warning: Ensure the fiber connector face (tip) is clean. Optical power transmitted through the connector may burn particles on the connector face damaging it.
Page 58: Enabling And Disabling Emission
Enabling and disabling emission Enabling and disabling emission Enable emission To turn on the laser using CONTROL follow the steps in Procedure (CONTROL) Note: The laser is equipped with internal temperature sensors that monitor the temperature of sensitive components. If these components are outside their specified temperature range, the laser source will halt emissions.
Page 59: Enable Emission (Front Panel)
Enabling and disabling emission Action 5 Observe that the status panel is shown with indicators in the emission enabled state. Status indicators lit GREEN and Emission Enabled lit RED 6 a. Set the reference wavelength offset for the λ module using the slider in the Wavelength λ...
Page 60 Enabling and disabling emission Procedure 4 Turning on the laser using CONTRO4 Action 1 Connect to the laser using the procedures in Communicating with the Laser on page 2 a. If the External bus is in an open circuit state or not terminated with the included bus defeater –...
Page 61 Enabling and disabling emission Action 6 Emission ENABLED message – the emission wavelength and power level is displayed. Emission is ENABLED...
Page 62 Enabling and disabling emission Action 7 Interlock opened message – this message will be displayed if there is a break anywhere in the interlock circuit. Emission will be disabled and the status LED on the front panel will be ON RED. Emission is DISABLED 8 a.
Page 63: Using Control
Using CONTROL CONTROL overview The CONTROL interface includes multiple panels and a selection of menu drop down items in the upper left corner. Using the Window drop down menu, you can add or remove the displayed panels and panels can be dragged within the main window or into separate windows.
Page 64: Relocating Panels
CONTROL overview Relocating panels The panels displayed by GUI can be dragged to other positions within the main interface or into a separate floating panel. Procedure 5 describes how to move a panel: Procedure 5 Relocating panels Action Left click hold the top title bar of a panel. While holding the left mouse button down, drag the panel to another position in the main window.
Page 65: Toggling Panels
Status panel Toggling panels Use the Menu > Window drop down menu to check and uncheck panels to be displayed. A blue check mark indicates the panel is displayed. Figure 35 Panels dragged outside the main window Check the panels to display them Note: Clicking the X in the upper right corner of any panel will also close it.
Page 66: Status Indicators
Status panel Figure 37 Status panel Click Status indicators The panel displays the following indicators: Interlock Indicates if power is connected to the laser. ON Green – Interlock circuit closed • ON Red – Interlock circuit open • Status Indicates the laser thermalization and operation capability: ON Green –...
Page 67: System Info
CONTROL settings System info The System Info section shows the following: Laser serial number • Laser firmware version • Measurements Displays the system temperature. WL mod button and Button indicator The WL mod button turns the wavelength modulation ON or OFF. Indicator GREEN –...
Page 68: Wavelength Modulation
CONTROL settings Figure 38 GUI settings Click the gear icon to access the menu Setting Item Function Wavelength Toggles the mode of the laser between power Wavelength modulation on modulation and current mode. page 68 Power/current Check box to toggle Auto-start on or off. Power/Current mode on mode page 71...
Page 69: Figure 39 Wavelength Modulation - Internal Source
CONTROL settings Figure 39 Wavelength modulation - internal source Figure 40 Wavelength modulation - external source Modulation Type (internal mode) If the Modulation source is set to Internal, you can set the signal waveform type that is generated internally. Click the Type drop-down menu arrow and select either Sinusoidal, Triangle, Sawtooth or an Inverse sawtooth waveform.
Page 70 CONTROL settings length up or down when the DC-voltage varies either positive or negative re- spectively. The speed of wavelength tuning is set with the Integrating update interval. Modulation Range For X15 lasers, you can use the Modulation Range drop-down menu to set the modulation range to either narrow or wide.
Page 71: Power/Current Mode
CONTROL settings Internal generator power Level You can set the output power level of the internal function generator to between 0 and 100%. Use the slider or the field in the upper right corner of the Level slider to adjust the modulation level. Internal generator Offset The offset of the internal modulation signal can be adjusted between -100 and +100% dependent on the modulation level.
Page 72: Ethernet
Ethernet Connections is configured different than the Remote port, the Computer port should match the Remote port. MAC Address The MAC address for the Koheras ADJUSTIK frame is shown in the bottom of the Ethernet settings. The MAC address is not configurable but unique for every product.
Page 73: Clock
CONTROL settings Enable Watchdog To turn the watchdog on, select ON from the drop-down menu next to Enable watchdog. To turn the watchdog off, select OFF. Watchdog timeout When CONTROL communications is disconnected, the Watchdog timer starts. When it reaches the Watchdog timeout setting, emission is disabled. The Watchdog feature must be set to ON Figure 45 Watchdog setting Enables the Watchdog...
Page 74: View
CONTROL menu items View Check the System info box to display the laser serial number, firmware release number or system temperature within the status panel. Figure 47 View setting Toggles whether to display the serial #, FW release or system temperature CONTROL menu items There are four drop down menus in the main control window as highlighted in Figure...
Page 75: Application Log
CONTROL menu items Figure 49 Serial monitor Command Input Live Serial Communication Messaging The panel is enabled by placing a check mark on the Window pull down menu next to the Serial Monitor item. To close the panel click on the upper right corner “X”. Application log In addition to the Serial Monitor, the Application Log panel is used for debugging serial communications.
Page 76: Control - Control Panel
CONTROL – Control panel CONTROL – Control panel For the Koheras ADJUSTIK the control panel can be configured to present different operating mode controls for either Power or Current mode. The modes are selected by clicking on the Settings drop down menu (gear icon) in the status panel.
Page 77: Installing The Laser
SECTION 3 INSTALLING THE LASER This section describes how to install the laser and includes the chapters: “Mechanical Installation” on page 79 • “Connecting the Laser” on page 83 •...
Page 79: Mechanical Installation
Mechanical Installation The laser chassis is designed to be installed on a flat surface or rack-mounted in a standard 19 inch rack. This section describes how to mount the laser module to ensure optimal function and ensure that heat generated by the laser is adequately dissipated.
Page 80: Placing The Laser On A Table Or Shelf
To avoid injury and damage, NKTP recommends that when rack mounting the Koheras ADJUSTIK two persons are present. One person can position the laser while the other fastens it to the rack.
Page 81: Operating And Storage Environment
Warning: The Koheras ADJUSTIK is a Class 3B laser product and its operation fa- cility and conditions must comply with the standards listed below or similar: CFR21 1040.10 & Laser Notice LN50 • IEC / EN 60825-1...
Page 82 Placing the laser on a table or shelf...
Page 83: Connecting The Laser
Connecting the Laser Before operating the laser, follow the procedures in this chapter to ensure its correct and safe operation. For information on how to connect: The Safety Interlock – see “Connecting the safety interlock” on page 83 • Power – see “Connecting power”...
Page 84: Connecting An Interlock Switch
Shutdown Laser Caution: Do not short-circuit the Interlock input. Short-circuiting the interlock cir- cumvents safety regulations and NKT Photonics does not take liability for any in- juries or damage caused by doing so. Caution: The switch connected to the interlock must be of an approved type. Fur- ther, the switch must be installed in a manner so that its operation cannot be fixed in the open state using a tool.
Page 85: Connecting Power
Connecting power The External bus includes an extension of the interlock circuit. The defeater plug loops the circuit at the last External bus connector in the system with no other devices attached to the bus chain. If no defeater is used, the interlock circuit will be open and disable the laser in the chassis in the same manner as the door switch opening.
Page 86: Output Trigger
Connecting the optical output Figure 58 Trigger input circuit Output trigger When the trigger feature is set as an output, the trigger pin should be connected to an external pull-up resistor. The diagram shows the trigger output Figure 58 circuit. Figure 59 Trigger output circuit The high and low voltage levels are defined by the following equations: Vhigh = Vexternal...
Page 87 Connecting the optical output clean the connector or contact NKT Photonics support if replacement is necessary.
Page 88 Connecting the optical output...
Page 89: Appendices
APPENDICES The appendices include: Specifications Appendix A on page 91 • Service and Support Appendix B on page 95 • Interface Pin Assignments Appendix C on page 97 • CONTROL Installation Appendix D on page 99 •...
Page 91: A Specifications
Specifications Table 12 Optical CW - inherently single frequency Laser Emission < 1.05 < 1.05 < 1.05 < 1.05 Beam Quality (M2) < 0.1 < 0.1 < 15 < 20 Linewidth (kHz) -110 @ 1 Hz Max. Phase Noise [dB(µrad/√Hz)/m] -125 @ 10 Hz -90 @ 10 Hz -69 @ 10 Hz...
Page 92: Table 15 Electrical
Table 15 Electrical All Chassis Models Supply Voltage 100 – 240 VAC@ 50-60 Hz Table 16 Safety and regulatory compliances Safety Regulatory EN 60825-1:2014: Safety of laser products EN 61326-1:2013: Electrical equipment for measurement, Part 1: Equipment classification and requirements control and laboratory use EMC requirements –...
Page 93: Table 17 Mechanical Dimensions
Table 17 Mechanical dimensions...
Page 95: B Service And Support Information
Service and support Information Servicing the laser The laser have no user serviceable components. In case of malfunction, contact NKT Photonics using the support channels in section “Support contact details”. Caution: Do not open the laser’s modules. The laser modules are equipped with warranty labels (see 60) on the covers of the laser chassis.
Page 96: Support Contact Details
Support contact details Support contact details For technical or general support, NKT Photonics can be contacted for help regarding issues and questions with your laser or its accessories. Support Email support@nktphotonics.com Online support http://www.nktphotonics.com (click on support) web-page Shipping address...
Page 97: C Interface Pin Assignments
Emission Collector output with an internal 270 Ω resistor in series.Outputs a logic high when the Koheras ADJUSTIK system has laser emission ON. To indicate emission with an LED, its anode can be connected directly to this pin and its cathode connected to the GND (pins 5,6, 13 or 14).
Page 98 External bus Pin # Signal Description Interlock Logic Outputs a logic high (5V) when the interlock circuit is closed and has Output been reset. This signal can be used to control safety related precautions on the External Bus. 5,6,13,14 0 volt ground. 7,8,15 +12 V 12 volt supply voltage for external accessories.
Page 99: D Control Software
CONTROL Software Installing CONTROL Download the software from: https://www.nktphotonics.com/lasers-fibers/support/software-drivers/ Follow the steps in Procedure Procedure 7 Installing CONTROL Action On the PC, launch the installer package and then click the Installer Run button. The installation wizard appears. Click Next to continue.
Page 100 Installing CONTROL Action Accept to use the default installation directory or select another directory by clicking the Browse button. Click Next to continue. Uncheck the components you do not require. By default, all components will be installed. Click Next to continue. Read the End-User License Agreement, and select: “I accept the license.”.
Page 101 Installing CONTROL Action The wizard will create a start menu folder with program short-cuts. Use the default name or enter a new name for the folder. Click Next to continue. Check the box to create a desktop shortcut to access Control.
Page 102 Installing CONTROL Action Click Install to install NKTP Control software on your PC. Click Cancel if you want to abort the installation. The wizard displays a progress meter for the installation. Note: a normal install should only take a few seconds. Click Next to install the UART drivers for the PC USB port.
Page 103 Installing CONTROL Action The drivers will be installed. The Silicon Labs drivers is installed successfully. Click Finish to end the installation wizard. CONTROL is now installed. Check the Run box to launch CONTROL when the Finish button is clicked. Click Finish.
Page 104 Installing CONTROL...
Page 105 Koheras ADJUSTIK Product Description Revision 1.0 01-2020 W-10456...

NKT Photonics Koheras ADJUSTIK Product Manual

1 Laser Description

2 Modulation

3 Communicating with the Laser

4 Turning on the Laser

5 Using CONTROL

6 Mechanical Installation

7 Connecting the Laser

Appendices

Quick Links

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Summary of Contents for NKT Photonics Koheras ADJUSTIK

Table of Contents