NKT Photonics ADJUSTIK, Product Manual

Page 1: ...Item 800 611 01 Koheras ADJUSTIK HP PRODUCT GUIDE Low Noise Single Frequency Laser System...

Page 2: ...ludes the following NKT Photonics lasers Koheras ADJUSTIK Low Noise Single Frequency Laser System Koheras ADJUSTIK HP High Power Low Noise Single Frequency Laser System Koheras ADJUSTIK Product Guide...

Page 3: ...ion Note The paper copy of this document is included with your laser however it can also be downloaded from https www nktphotonics com lasers fibers support product manuals Terminology This guide may...

Page 4: ...ssory descriptions laser part numbers and miscellaneous procedures supporting the laser operation and installation Added information and safety notices Lasers are highly dangerous devices that can cau...

Page 5: ...wn selection description in Procedure 3 on page 64 Added power scale drop down selection of wavelength or offset to section Power mode on page 87 Removed the misapplied serial monitor description and...

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Page 7: ...nel style 23 Terminology 23 Features and Options 24 High power variants 24 Theory of operation 25 Safety 25 Module variants 26 Part numbers 26 Center wavelength 26 Output power 26 Tuning types 27 Fron...

Page 8: ...dulation 39 Configuring wavelength modulation 39 Wavelength signal 40 Differential input 41 Single ended to differential 41 Singled ended input 41 Wavelength to AGND 43 Differential output 44 Waveleng...

Page 9: ...hdog timer 56 Display backlight 56 IP Address 57 Emission button 57 4 Communicating with the Laser 59 CONTROL software 59 Installing CONTROL software 59 Connecting the laser to a CONTROL PC 59 Etherne...

Page 10: ...button and indicator 74 Emission button 74 CONTROL settings 75 Wavelength modulation 75 Amplitude modulation 78 Ethernet 80 Watchdog 81 Clock 82 View 82 CONTROL menu items 83 Key Updater tool 83 Log...

Page 11: ...efeater 99 Connecting power 99 Connecting modulation signals 100 Connecting the trigger input or output 100 Input trigger 100 Output trigger 101 Connecting the optical output 101 Cleaning of fiber fac...

Page 12: ...12 External bus 111 D CONTROL Software 113 Installing CONTROL 113 E Part Numbers 119...

Page 13: ...9 CONTROL panels and menu items 69 Table 10 Device Monitor parameters 88 Table 11 Power specifications 100 Table 12 Koheras ADJUSTIK optical specifications 105 Table 13 Koheras ADJUSTIK HP optical sp...

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Page 15: ...gure 13 Differential output signal graph 44 Figure 14 X15 variant wavelength modulation response graph 45 Figure 15 E15 C15 Y10 variant wavelength modulation response graph 46 Figure 16 Differential i...

Page 16: ...ttings 75 Figure 42 Wavelength modulation internal source 76 Figure 43 Wavelength modulation external source 76 Figure 44 Internal generator waveform selection Type 77 Figure 45 Turning on wavelength...

Page 17: ...terlock connected to a door switch Laser SHUTDOWN 98 Figure 62 Bus defeater 99 Figure 63 Trigger input circuit 100 Figure 64 Trigger output circuit 101 Figure 65 Lint free wipe example 102 Figure 66 E...

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Page 19: ...rnet 61 Procedure 3 Turning on the laser using CONTROL 64 Procedure 4 Turning on the laser using the front panel controls 66 Procedure 5 Relocating panels 70 Procedure 6 Using the Key Updater tool 83...

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Page 21: ...llowing topics Laser Description on page 23 Module variants on page 26 Laser features on page 30 Optical interface on page 33 Laser Control on page 34 Status LEDs on page 35 Chassis labels on page 36...

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Page 23: ...ts with additional options that can be specified All variants are designed with distributed feedback fiber laser technology and for the ADJUSTIK2 center wavelengths can be specified from either 1535 t...

Page 24: ...ignal applied to the pins modulates the output wavelength Modulating the output wavelength can obtain improved stabilization as compared to the free running wavelength specification Output fiber The s...

Page 25: ...table over the entire operating frequency band of the laser Safety Warning The lasers are rated as Class 3B and Class 4 lasers and are therefore hazardous Before turning on the laser ensure to read an...

Page 26: ...r 1545 to 1565 nm or 1060 to 1075 nm2 Output power Depending on the module type the output power varies between greater than 10 mW and up to and including 2 W The output power is generally fixed for A...

Page 27: ...and acoustic pickup Note Wide thermal tuning is the default option for the lasers Piezo tuning The internal laser modules support fine fast wavelength modulation using Piezo tuning For further inform...

Page 28: ...disables emission Enables emission only if the system meets safety and operational parameters Key switch the key switch must be ON to enable emission Remove the key to prevent unauthorized laser oper...

Page 29: ...als Ethernet 10 100 Mbps BASE T Ethernet port for IP connectivity to the laser External Bus Female DB 15 pin connector connects the laser to other systems or accessories The connector provides RS 485...

Page 30: ...ser 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 Further t...

Page 31: ...se to an ultra low level It requires that the output is stabilized using an external cavity circuit Refer to External cavity stabilization on page 47 for details of the implementation Amplitude modula...

Page 32: ...temperature shutdown To prevent thermal run away when the laser temperature exceeds 65 C emission is automatically turned off by the high temperature shutdow feature The feature uses the thermal cont...

Page 33: ...er fiber patch cords with FC APC connectors FC APC pig tail or connector adapters FC APC adapter or SC APC adapter Polarization maintaining output The output fiber of the laser is polarization maintai...

Page 34: ...cations For further information regarding the SDK refer to the software and drivers link at NKTP s support webpage https www nktphotonics com lasers fibers support technical support and customer servi...

Page 35: ...ut there is no emission from the system Alternatively firmware is being uploaded to the system main control board During firmware upgrade the interlock cannot be reset and no emission from the system...

Page 36: ...umber of labels on it that indicate hazards regulatory or manufacturing information The labels are located on the panels described in Table 5 with the panels shown in Figure 5 and Figure 6 Figure 5 To...

Page 37: ...showing the emission specifications of the laser Laser Radiation Warning Top Safety information alert indicating this area of the laser is near a source of dangerous laser emission Laser Aperture Fib...

Page 38: ...Laser features 38...

Page 39: ...r set Therefore the E15 s performance is only guaranteed at the nominal maximum output power setting Fast wavelength modulation If the fast wavelength modulation option is included with the laser the...

Page 40: ...or CONTROL see For SDK see External wavelength modulation Sets wavelength modulation to external signal mode page 75 page 84 Internal function generator Sets wavelength modulation to internal function...

Page 41: ...ength modulation setting when it is not in use Single ended to differential The circuit shown in Figure 8 is an example of how to generate a differential signal from a single ended input In this examp...

Page 42: ...al 2x5 Vpp input Figure 9 Single ended input signal with 2 5 V graph Figure 10 shows the Wavelength pin connected to the same potential as the common mode voltage of the Wavelength signal the optical...

Page 43: ...AGND and the Wavelength signal is modulated between 0 and 5 V as shown in Figure 11 the optical output is modulated above its thermally controlled wavelength Figure 11 Single ended input signal with...

Page 44: ...n external reference signal that for example uses the Pound Drever Hall technique In this mode the laser adjusts its wavelength so the differential error signal level on the Wavelength input leans tow...

Page 45: ...gure 14 shows the measured frequency response of an X15 variant for both wide and narrow ranges Wide 600 MHz tuning at low frequencies with a smooth roll off to a 3 dB cut off at 300 Hz Narrow 30 MHz...

Page 46: ...tion generator When the output power is modulated the maximum level cannot exceed the configured output power setpoint Amplitude Signal The Amplitude pins of the electrical interface are a differentia...

Page 47: ...y Figure 17 shows the Amplitude negative pin connected to ground with the positive branch connected to a signal that varies between 0 V and 5 V Figure 17 Single ended input for amplitude modulation gr...

Page 48: ...odulation input as DC coupled see Modulation Coupling on page 77 3 Configure the laser to operate in narrow modulation range see Modulation Range on page 77 4 Turn wavelength modulation on see Turning...

Page 49: ...G THE LASER This section describes how to manage and operate the laser and includes the chapters Front Panel Menu on page 51 Communicating with the Laser on page 59 Turning ON the Laser on page 63 Usi...

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Page 51: ...y on page 53 W1 Modulation Enables external or internal wavelength modulation W1 modulation on page 53 W1 mod Gain Gain adjustment for the wavelength modulation signal W1 mod Gain on page 54 W1 mod So...

Page 52: ...utton to exit a sub menu and return to the top or parent menu Modifying parameter values Press the enter button multiple times to select a digit of a parameter s numeric field When the digit is flashi...

Page 53: ...from the standard wavelength Changing between absolute and relative with this menu affects both the Top menu and Wavelength menu Absolute sets the panel to display the actual wavelength in both the To...

Page 54: ...he modulation source used for wavelength modulation Set the source to either Internal internal generator or External signal applied to the wavelength modulation pins Figure 24 Wavelength modulation so...

Page 55: ...27 to set the operation mode of the laser to either constant Power mode or constant Current mode Refer to Operating mode on page 31 for further information on setting the mode Figure 27 Operation mod...

Page 56: ...n the timer is enabled the laser monitors the communications link When the laser detects that the link is broken the watchdog timer begins to countdown If the timer expires before the link is restored...

Page 57: ...and cau tions in this guide and in either the Koheras ADJUSTIK Safety Handling and Regulatory Information or Koheras ADJUSTIK HP Safety Handling and Regulato ry Information document before continuing...

Page 58: ...Menu items 58...

Page 59: ...is capable of controlling configuring and monitoring the laser Installing CONTROL software After downloading the CONTROL installer software onto a PC CONTROL PC double click the installer and follow t...

Page 60: ...clicking on Windows Start Programs NKT Photonics CONTROL or double clicking the CONTROL shortcut on the desktop 5 The CONTROL window opens Click on the Connect button in the left side of the window 6...

Page 61: ...s Ensure to select the address assigned to the Ethernet port of the PC connected to the laser System IP Addr Enter an IPv4 address for the laser s network adapter see IP Address on page 57 Protocol Se...

Page 62: ...d click the delete button or 2 Click the edit button 3 Click Save when finished Edit button Delete button From the Connect drop down menu click on the Ethernet connection configured in step 3 to conne...

Page 63: ...minimum a door switch interlock 2 The laser is connected to a PC through either a USB or Ethernet connection and the PC has CONTROL installed on it and executing according to the procedures in Communi...

Page 64: ...turning on the laser the first time check the optical path to confirm no BR is possible from the application light path Warning Back reflection is a hazard and may cause injury or damage to the laser...

Page 65: ...e that the status panel is shown with indicators in the emission enabled state 6 a In the Control panel set the reference wavelength or its offset using the Wavelength or offset slider control To set...

Page 66: ...res in Communicating with the Laser on page 59 2 a If the interlock circuit is in an open state or not terminated with the included External bus defeater the External interlock message is displayed To...

Page 67: ...ission can be enabled To enable emission press the emission button on the front panel see Figure 3 6 Emission ENABLED message the emission wavelength and power level is displayed Warning When this mes...

Page 68: ...the selection dial select the Wavelength setting menu Once selected use the selection dial and enter button to adjust the wavelength b Adjust power to modify the output power use the selection dial a...

Page 69: ...e drop down menus with multiple functions CONTROL menu items on page 83 Quick Connect Contains a button when clicked scans all available PC ports for connected NKTP products Connecting to the laser on...

Page 70: ...ed outside the main window Action 1 Left click and hold the top title bar of the panel 2 While holding the left mouse button down drag the panel to another location in the main window 3 In the new loc...

Page 71: ...Welcome screen is displayed as in Figure 37 In the menu bar click the Connect drop down menu and then click on the COM port your laser is connected to Control and Status panels are displayed when the...

Page 72: ...ch connected device Figure 39 shows the device selector for an ADJUSTIK laser If multiple lasers are detected by CONTROL click on the ADJUSTIK icon to brings up its controls To modify the ICON text se...

Page 73: ...igure 40 Status panel Status indicators The panel includes the following indicators Interlock Indicates the status of the interlock circuit ON Green Interlock circuit closed ON Red Interlock circuit o...

Page 74: ...page 39 Amp mod button and indicator Button The Amp mod button turns amplitude modulation ON or OFF Indicator Green amplitude modulation is ON GREY amplitude modulation is OFF Note The Amp mod button...

Page 75: ...lation Sour ce The signal source used to modulate the wavelength is selectable Click on the Source drop down menu to select one of three source modes Setting Item1 1 Setting items available may vary a...

Page 76: ...on signal to either the laser s interface board connectors as described in Connecting modulation signals on page 100 or directly to the main electrical interface pins The pin assignments are described...

Page 77: ...ating 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 When set to Narrow modulation depth is limite...

Page 78: ...t the offset of the internal modulation signal to between 100 and 100 depending on the modulation level For example if the modulation level is set to 40 the offset can be adjusted between 60 and 60 Th...

Page 79: ...ONTROL overview see Amplitude modulation on page 46 and Interface Pin Assignments on page 111 To use the internal generator see Internal generator on page 80 Figure 46 Amplitude modulation source sett...

Page 80: ...ngs for the laser Ensure that the IP address of the laser is on the same subnet or a subnet reachable from the computer used to control it System Port The System port defines what port number the lase...

Page 81: ...e for every laser Figure 48 Ethernet setting Watchdog The laser features a watchdog for monitoring of USB or Ethernet communication If CONTROL is disconnected from the chassis the watchdog disables em...

Page 82: ...date from the connected PC s current time and date setting Figure 50 Clock setting View Check the System info box to display the laser serial number firmware release number or system temperature with...

Page 83: ...on File Exits the GUI program Connect Disconnect Disconnects the currently connected device from GUI Tools Select from one of three special tools to use with your laser Tools available are Key Updater...

Page 84: ...der tool to put the device into dedicated log download mode by enabling a collect log function Note When the collect log function is enabled it temporarily disables automatic log collection from all o...

Page 85: ...aves the file onto the CONTROL PC If the percentage shows less than 100 the log is first collected See Collect log below Collect log Starts a dedicated log collection mode that disables all other CONT...

Page 86: ...the mouse pointer over the Release notes text The Pub Lib dll details highlighted in Figure 53 shows the version of the dll file x x x xxx the included extensions and which module types they support N...

Page 87: ...dBm Figure 54 Operating mode set to power Note For C15 and Y10 variants the power is fixed and cannot be adjusted For these module variants a power slider control is unavailable Note The range of the...

Page 88: ...ed Status bits The actual status bits read from the connected module Error code The actual error code read from the connected module Access Protected Locked status of the module FW Ver The device modu...

Page 89: ...igure 55 Serial Monitor The panel is enabled by placing a check mark on the Window pull down menu next to the Application Log item To close the panel click on the upper right corner X COM Total number...

Page 90: ...Application log 90...

Page 91: ...91 SECTION 3 INSTALLING THE LASER This section provides information on how to install the laser and includes the chapters Mechanical Installation on page 93 Connecting the Laser on page 97...

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Page 93: ...nd result in abnormal operation Caution For reliable operation the laser should not be exposed to corrosive agents or excessive moisture heat sources or dust Heat dissipation The heat generating compo...

Page 94: ...e 57 Image of the laser rack mounted Placing the laser on a table or shelf For installations where the laser is placed on a level surface the laser is equipped with four 4 rubber feet on its bottom pa...

Page 95: ...95 Placing the laser on a table or shelf laser s operating temperatures are maintained Figure 58 Rubber mounting feet Figure 59 Table or shelf mounting Rubber feet...

Page 96: ...mbient operating and storage environment specifications Warning A Koheras ADJUSTIK laser is either a Class 3B or Class 41 laser product and its operation facility and environmental conditions must com...

Page 97: ...h is opened by the door it opens the interlock circuit which turns off laser emission Simplified Interlock operation The interlock circuit in functional terms is a closed circuit loop When the loop is...

Page 98: ...n 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 Cauti...

Page 99: ...d back see Table 20 on page 111 Connecting power Power is supplied to the laser through the rear AC input connector The connector is a standard C 14 type designed for use with an AC power cord that is...

Page 100: ...use the trigger signal to either initiate or indicate laser emission Input trigger When set as an input a positive active high signal must be applied to the trigger pin to initiate emission The diagra...

Page 101: ...he connector tip using a fiber microscope Using the microscope check for any de formities damage residue or other contaminants at the optical tip of the connec tor Either clean the connector or contac...

Page 102: ...all connectors using an inspection scope A scope with both coaxial and oblique illumination is useful in exposing any contaminants or defects in the facet Further rotating the fiber while under illumi...

Page 103: ...dices include Appendix A on page 105 Specifications Appendix B on page 109 Service and Support Appendix C on page 111 Interface Pin Assignments Appendix D on page 113 CONTROL Installation Appendix E o...

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Page 105: ...z 0 3 20 kHz 355 10 Hz 36 100 Hz 3 5 20 kHz Peak RIN MHz 0 7 0 7 1 0 1 5 RIN level Peak 10 MHz dBc Hz 100 135 100 135 120 140 105 140 Optical S N 50 pm res dB 50 typ 55 50 typ 55 65 typ 70 65 typ 70 M...

Page 106: ...ng Wavelength Tuning Range pm 3 3 Relative to the center wavelength at room temperature If the laser case temperature is outside the range of approximately 10 50 C the range of detuning from the cente...

Page 107: ...1010 1 2010 Safety requirements for electrical equipment for measurement control and laboratory use Part 1 General requirements EN 61326 1 2013 Electrical equipment for measurement control and laborat...

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Page 109: ...aser contains electro static discharge ESD sensitive components To avoid permanent ESD damage use ESD protection precautions when handling the laser Always connect the laser s earth point to a ground...

Page 110: ...t NKT Photonics through our support website below Support website 1 Go to https www nktphotonics com lasers fibers support technical support and customer service 2 Scroll down and click or press 3 Sel...

Page 111: ...e Positive branch of differential input output for amplitude modulation 8 AGND 0 volt analog ground for modulation signals 9 Wavelength Positive branch of differential input output for wavelength modu...

Page 112: ...en the interlock circuit is closed and has been reset This signal can be used to control safety related precautions on the External Bus 5 6 13 14 GND 0 volt ground 7 8 15 12 V 12 volt supply voltage f...

Page 113: ...llow the steps in Procedure 9 Procedure 9 Installing CONTROL Action 1 On the PC launch the installer package and then click the Run button 2 The installation wizard appears Click Next to continue 3 Ac...

Page 114: ...ext to continue 5 Read the End User License Agreement and check I accept the license box Not checking the box ends the installation wizard Click Next to continue 6 The wizard creates a start menu fold...

Page 115: ...ick Next to continue 8 Check the Run the Silicon Labs CP10x driver installation box and click Next Note If you do not have the driver installed USB connectivity will fail 9 Click Install to install NK...

Page 116: ...talling CONTROL 116 10 The wizard displays a progress meter for the installation Note a normal install should only take a few seconds 11 Click Next to install the UART drivers for the PC USB port Acti...

Page 117: ...is occurs so fast you may not see this 13 The Silicon Labs drivers is installed successfully Click Finish to end the driver installation 14 CONTROL is now installed Check the Run box to launch CONTROL...

Page 118: ...Installing CONTROL 118...

Page 119: ...TIK E15 40 mWi i Minimum output 30 of the maximum K8221 Koheras ADJUSTIK C15 10 mWii ii Fixed K8227 Koheras ADJUSTIK X15 22 5 mW K8220 Koheras ADJUSTIK Y10 10 mWii K82223 Koheras ADJUSTIK HP E15 200 m...

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Page 122: ...Koheras ADJUSTIK Product Guide Revision 1 1 03 2022 W 10456 Item 800 611 01...