CALIBRATION AND TROUBLESHOOTING
Calibration Overview
128 LDC-3700 Series
CHAPTER 5
3 Enter the "LAS:CAL:LDV" command to place the Controller in its LASER Voltage
Calibration mode.
4 Enter the measured voltage (in volts) via the "LAS:LDV <nrf value>" command. The
measured value of the voltage should not be entered until the LDC−3700B Series Laser
Diode Controller is ready to receive it. The Controller will be ready to receive the voltage
value when, after a "LAS:CAL:LDV?" query is sent, the response from the Controller is
"1".
5 Once the actual voltage value is entered via the "LAS:LDV <nrf value>" command, the
Controller will set the current to approximately one−fourth (1/4) of the original value. It will
then expect the second calibration voltage point.
6 Input the second actual (measured) LASER forward voltage (as an <nrf value>).
7 Once the second actual voltage value is entered via the "LAS:LDV" command, the
Controller will store the new calibration constants.
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