© 2021 Thorlabs
PM103x
Page 15
MTN023788_D02
3.3.1 Software Requirements
All models of the PM103x can be run with the Thorlabs' OPM software version 2.3 or higher.
Please find the requirements for the PC intended to be used for operation of the PM103x on
the OPM website.
3.3.2 PM103x Specific Software Functions
When using a PM103x power meter interface, the OPM software version 2.3 (or higher) shows
several power meter specific functions. To see details, please also visit the OPM manual.
3.3.2.1 PM103 Specific Software Functions
1. When a PM103x power meter is connected, the OPM software recognizes NTCs in the
devices section. The OPM now allows users to adjust settings, view measurement results
and to integrate the NTC measurement results in long-time monitoring experiments. For
more information, please see the OPM manual.
2. When a PM103 is connected, it is possible to configure the analog AO2 port and display the
output voltage.
3.3.2.2 PM103A Specific Software Functions
When a PM103A is connected, it is possible to configure the analog AO2 SMA port and display
the output voltage.
When using the “Scope Mode” in the OPM software, the digital I/O SMA port can be used as an
external trigger or as a monitor output for the internal trigger.
3.3.3 Sensor Calibration
All models of the PM103x can be used to calibrate signal detected by Thorlabs photodiodes to
a known reference.
For this, the Sensor Calibration Tool within the software Optical Power Monitor is used. All the
user needs to provide is a signal from a reference sensor. The signal from the sensor to be cal-
ibrated is then adjusted and the calibration along with the serial number of the calibrated sensor
and the reference are saved in the power meter EEPROM and are retrieved by the software.
Please see the manual of the OPM for more information.
3.3.4 Frimware Update
To update the firmware of the PM103x, please download the latest firmware through the OPM
website and use the Firmware Update Tool in the software Optical Power Monitor (OPM). For
more information, please see the manual of the OPM.
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