THORLABS ITC4000 Series, Руководство по эксплуатации

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3 Operating the ITC4000 Series
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The Input Route determines the used photodiode input. The Input Route will be the contacts 7
and 8 of the 13W3 Mixed DSUB jack "LASER OUTPUT" (R9) or the BNC jack "OPT
SENSOR" (R4) on the rear panel. For using the 13W3 "LASER OUTPUT" please select DSUB
connector. Otherwise please select Rear panel BNC.
Note
If the thermopile sensor is configured to the Rear Panel BNC a settings conflict will be shown.
In this case set the thermopile input route to DSUB connector.
Range:
The ITC4000 features two photo current input ranges. Please choose the 20mA range for
higher photo currents and the 2mA range for higher sensitivity.
BIAS State:
The BIAS State switches the adjusted BIAS voltage On or Off. A BIAS voltage offers a shorter
response time of the connected photodiode. For the maximum permitted reverse voltage
please refer to the data sheet of the used photodiode.
BIAS Voltage:
The BIAS voltage can be adjusted from 0 to +10V with CG polarity and from 0 to -10V with AG
polarity.
Response:
The photodiode responsivity value is used for a calibrated power adjustment. The adjustment
range is 0.01mA/W to 10 A/W. With this parameter set correctly, the optical output power can
be displayed in Watts. The resulting photodiode current set point will be calculated automati-
cally by the ITC4000.