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THORLABS ITC8000 User Manual

THORLABS ITC8000
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© 2016 Thorlabs
6 Operating Instruction
29
6.3.2 Changing Parameters
To set or change a numerical parameter in the channel menu, select the respective line with the
cursor:
Example: Change ILD:
Pressing the soft key CHANGE activates the tuning knob to change the selected parameter. If the
parameter is only to toggle (e.g., the polarity of the laser diode), the function of the soft keys will
change:
Pressing the right soft key changes the sensor; pressing the key terminates the procedure.
Note
Some parameters can not be changed, as they are measurement values (i.e. the TEC voltage) or
cannot be changed while the TEC current output switched on. In these cases the access is denied
indicated by a long beep.
6.3.3 Selecting the Polarity of the Laser and the Monitor Diodes
To change the polarity of the laser diode select the parameter
LDPOL = and select the desired polarity with CHANGE and toggle with AG/CG.
To change the polarity of the monitor diode select the parameter
PDPOL = and select the desired polarity with CHANGE and toggle with AG/CG.
6.3.4 Calibration of the Monitor Diode
In order to display the correct optical power based on the monitor current, the actual efficiency
coefficient C of the monitor diode must be entered.
Select the parameter C.
C = 0.2000A/W
If, for example, C is 0.5 A/W this can be entered in the channel menu by pressing the soft key
CHANGE and changing the default value using the tuning knob. Then press the key to
terminate the procedure.

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THORLABS ITC8000 Specifications

General IconGeneral
BrandTHORLABS
ModelITC8000
CategoryTemperature Controller
LanguageEnglish

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