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5.1 List of Acronyms

ITC5000

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5 Listings

5.1 List of Acronyms

The following acronyms and abbreviations are used in this manual:

ADC

Analog to Digital Converter

ASCII

American Standard Code for Information Interchange

CLR

CLeaR

Carriage Return

DAC

Digital to Analog Converter

D-Share Differential share
IEEE

Institute for Electrical and Electronic Engineering

I-Share Integral share
LDC

Laser Diode Controller

LED

Light Emitting Diode

Personal Computer

PID

Proportional, Integral and Differential Control Loop

P-Share Proportional share
RS232

Standard Serial Communications Protocol

SEL

SELect

Soft Ware

TCP/IP Transmission Control Protocol / Internet Protocol
TEC

ThermoElectric Cooler (Peltier Element)

Summary of Contents for ITC5000

Page 1: ...Operation Manual Thorlabs TXP Series Laser Current and Temperature Controller ITC5000 2004...

Page 3: ...diode 15 1 7 3 Connecting the Monitor diode 16 1 7 4 Connecting interlock and status LED 17 1 7 5 Connecting the thermistor 18 1 7 6 Connecting the TEC element 19 2 Getting Started 20 2 1 Precondition...

Page 4: ...35 3 2 3 The Setup menu 36 3 2 4 The cards menu 40 3 2 5 The Preferences menu 40 4 Service and Maintenance 43 4 1 Troubleshooting 43 4 2 Service 44 5 Listings 45 5 1 List of Acronyms 45 5 2 List of f...

Page 5: ...cism or ideas We and our international partners are looking forward to hearing from you Thorlabs GmbH This part of the instruction manual contains every specific information on how to handle and use a...

Page 6: ......

Page 7: ...o discharge your body before changing cards or lasers and apply the general rules for handling MOS devices This precision device is only dispatchable if duly packed into the complete original packagin...

Page 8: ...warrants the hard and software determined by Thorlabs GmbH for this unit to operate fault free provided that they are handled according to our requirements However Thorlabs GmbH does not warrant a fau...

Page 9: ...ption control of the connection cable to the laser diode interlock Protection against accidental operation Contact protection of the laser diode open circuit Protection against cable damage or bad con...

Page 10: ...still working faultlessly Action check After power up the combi modules are in LASER OFF mode LabVIEW and LabWindows CVI driver For the TXP series cards Thorlabs supplies LabVIEW and LabWindows CVI d...

Page 11: ...he modules ITC5xxx the laser diode current in constant current mode the monitor diode current in constant power mode and temperature or thermistor resistance are set with a resolution of 16 bit The li...

Page 12: ...e window operation Safety functions TEC Compliance voltage warning TEC Current limit Switch off with no sensor Laser Voltage Measurement Measurement Principle 4 Wire Measurement Range 0 4 V Resolution...

Page 13: ...tion 0 8 Accuracy 10 Stability 60 min 1 Control Loop Digitally controlled analog PID setting resolution 12 Bit Temperature Window Adjustment range 0 01 2 k Internal Modulation Waveform Sine Square Tri...

Page 14: ...Range 0 200 mA Compliance Voltage 2 5 V Setting Resolution 4 A Accuracy 0 05 100 A Noise 2 A Ripple 0 5 A Transients P 15 A Transients other 200 A Drift 15 sec 1 A Drift 60 min 1 5 A Drift 24 h 2 A T...

Page 15: ...Range 0 500 mA Compliance Voltage 2 5 V Setting Resolution 8 A Accuracy 0 05 0 25 mA Noise 5 A Ripple 0 5 A Transients P 30 A Transients other 500 A Drift 15 sec 1 A Drift 60 min 2 A Drift 24 h 4 A Te...

Page 16: ...rrent Range 0 1 A Compliance Voltage 2 5 V Setting Resolution 20 A Accuracy 0 1 1 mA Noise 10 A Ripple 0 5 A Transients P 50 A Transients other 1 mA Drift 15 sec 2 A Drift 60 min 4 A Drift 24 h 8 A Te...

Page 17: ...he red button of the ejector handle and flip down the black ejector handle This pulls out the card from its internal plug You can now remove the card If you do not insert another card please close the...

Page 18: ...the TEC element are always sourced relative to ground by the combi module This is of considerable advantage regarding the safety of devices and stability of currents The monitor diode input is a tran...

Page 19: ...UTEC TEC Voltage measurement 14 TH Thermistor ground 15 TH Thermistor 11 LDA Laser diode anode 3 LGND Laser diode ground 10 LDK Laser diode cathode 2 PD_GND Monitor diode ground Bias ground 4 PD_BIAS...

Page 20: ...or diode current TEC voltage and laser voltage measurement The shield has to be connected to ground pin 3 If an external monitor diode is used it must be connected by a coaxial cable with the outer co...

Page 21: ...be connected to the ground conductor of the laser diode pin 3 If this is necessary e g with laser diodes with integrated monitor diode and shared ground connector the ground conductors should be conn...

Page 22: ...hode Grounded CG Anode grounded AG Anode grounded AG Cathode Grounded CG Monitor Diode without Bias Monitor Diode with Bias 0 4V 0 4V 0 V 0 V Figure 3 Connecting the Monitor Diode Attention Check the...

Page 23: ...resistance too high the current module cannot be switched on Should the interlock contact open during operation the output will be switched off immediately Status display It is also possible to use a...

Page 24: ...1 7 Connecting components ITC5000 page 18 1 7 5 Connecting the thermistor The thermistor is connected between pin 14 and pin 15 no polarity is given Figure 4 Connecting the thermistor 15 14...

Page 25: ...7 6 Connecting the TEC element Connect the TEC element to pins 7 and 6 and the pins 8 and 13 for Figure 5 Connecting the TEC Attention An reverse poled TEC element may lead to thermal runaway and dest...

Page 26: ...e autorun function is active on your PC the installation program should start automati cally If not start the program TXP Suite exe on the CD The installation wizard leads you through the installation...

Page 27: ...ick on 1 Start the TXP Explorer and connect to the desired mainframe You will get a system overview of the selected TXP mainframe all TXP Explorer details are explained in the mainframe manual Figure...

Page 28: ...r the mainframe IP address see Figure 8 If necessary ask your system administrator also enter the port number and a timeout value in the advanced section see Figure 9 Click OK and the program will yie...

Page 29: ...2 2 The Graphics User Interface GUI ITC5000 page 23 Figure 8 Select the IP Address Figure 9 Select Port number and Timeout...

Page 30: ...ents you must properly configure your settings Current Limit values Laser diode polarity Operating mode Photodi ode polarity and a possible bias Wrong settings can destroy your Laser Diode 2 2 2 Set l...

Page 31: ...Do not forget to lock these fields again 2 2 3 Set the Laser and Photodiode polarities and the operating mode In the drop down menu Setup select LD Current Control Select the correct polarity of your...

Page 32: ...tant Power CP or constant Current CC 2 2 4 Change the temperature control Settings In the drop down menu Setup select Temperature Control Depending on the thermistor used the calibration coefficients...

Page 33: ...User Interface GUI ITC5000 page 27 Now you are ready to operate your laser diode Enter the desired values for laser current or power and for the operating temperature Then you can switch on the TEC an...

Page 34: ...ent Limit Lock Display fields for two selectable LD variables Switch Laser Current ON and OFF Switch Modulation ON and OFF Select modulation type Select the monitor current Display and set the desired...

Page 35: ...s resistance The thermistor resistance The measured TEC current The measured TEC voltage For the Laser Diode The measured Laser Diode current The measured monitor Diode current The calculated optical...

Page 36: ...real variable the resistance of the thermistor in k 3 1 2 Set the limit values Unlock the two padlocks and enter your absolute limit values for the laser diode current and the TEC current Enter the v...

Page 37: ...a PID adjustment Pre conditions All limit values have been set correctly all polarities are correct all relevant calibration values are entered Set the display refresh time see 3 2 5 The Preferences m...

Page 38: ...re after a minimum of overshoots I share Turn on the I share again Again change repeatedly between set temperatures of 18 C and 22 C Increase the I share gradually Higher values will accelerate the se...

Page 39: ...han 0 1 3 1 5 Switching ON and OFF Pressing the corresponding button will switch ON or OFF either the laser diode current the TEC current or the modulation The writing on the buttons always shows the...

Page 40: ...st be acknowledged by clicking OK Together with the error message an error number is given Please refer to this error number when consulting the Thorlabs technical hotline Messages in red are more imp...

Page 41: ...was stored from you will get a warning message or even an error message if the settings are physically impossible for this card Save Setup Save new settings under the filename you have opened before S...

Page 42: ...the port number and a timeout value under Advanced The timeout value is the wait time after which the program card yields a connection error if the ITC does not respond 3 2 3 The Setup menu LD Curren...

Page 43: ...ecisely calibrated display of the laser power in the main screen you must set the corresponding photo diode responsivity A W in the corresponding field You can use the up and down arrows or enter the...

Page 44: ...calibration coefficients are given in exponential form or as Steinhart Hart Parameters Select the corresponding form and enter the calibration coefficients given in the data sheet of the thermistor L...

Page 45: ...urrent if the temperature leaves this predefined window To enter new settings and activate the window function both laser current and TEC current must be switched off If your temperature setting field...

Page 46: ...item in this menu is to give you some more detailed information about the corresponding card 3 2 5 The Preferences menu The preferences menu contains one item Communication which allows to define the...

Page 47: ...3 2 Menu items ITC5000 page 41 Depending on the bandwidth and reliability of your connection between TXP and PC you can select update rates from 10 seconds down to 0 3 s...

Page 48: ......

Page 49: ...output power Is the local interlock closed Control the resistance between the interlock pins of the connector jack not to be more than 430 Is the global interlock closed If you do not use the global i...

Page 50: ...ITC5000 card does not need any service If highest precision of the measurements is vital for you you should have recalibrated the ITC5000 every two years You can see the due date of calibration in the...

Page 51: ...igital to Analog Converter D Share Differential share IEEE Institute for Electrical and Electronic Engineering I Share Integral share LDC Laser Diode Controller LED Light Emitting Diode PC Personal Co...

Page 52: ...15 Figure 3 Connecting the Monitor Diode 16 Figure 4 Connecting the thermistor 18 Figure 5 Connecting the TEC 19 Figure 6 The TXP Explorer Window 21 Figure 7 The ITC5000 GUI Surface 22 Figure 8 Selec...

Page 53: ...oltage Failed Internal error please contact Thorlabs GmbH Global Interlock Open Close the global interlock line or put the short circuit plug on the D SUB jack at the rear panel Local Interlock Open T...

Page 54: ...nc sales thorlabs com techsupport thorlabs com Europe Thorlabs GmbH europe thorlabs com France Thorlabs SAS sales fr thorlabs com Japan Thorlabs Japan Inc sales thorlabs jp UK and Ireland Thorlabs Ltd...

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