Toptica FemtoFiber pro IR, Manual, Page: 94 / 108

FemtoFiber
®
pro Laser System
Page 90
Status: 6.9.18
6.9.4 Reducing the Power Level
While the specified emission properties, such as pulse duration and output power, can only be guaran-
teed when the amplifier is operated with the factory set amplification level, it might be desirable to
reduce the power level for alignment purposes. This can easily be done with the following property:
ffpro.arm0.level (floating point property)
level of amplification from 0.0 to 1.0 (monotonical but not linear)
In a Multi-Arm System the additional amplifiers can be accessed in a similar way by simply replacing
“arm0” with “arm1”, “arm2” or “arm3”, respectively.
After the system boot sequence the level will be set to 1.0. This can be verified by querying its value:
>>> ffpro.arm0.level
1.0
>>>
In order to reduce the power level, simply assign a new value between 0.0 and 1.0.
>>> ffpro.arm0.level=0.5
>>>
The emitted laser power will be much lower now and the white status LED at the laser head will be blink-
ing while the laser emission is switched ON, indicating that the pulses are not expected to fulfill the speci-
fications now.
6.9.5 System Status
The command
systemsummary() (command, no parameter, no result value)
reports a summary of the most important system parameters, such as software and hardware versions,
uptime counters etc.
This is a very useful tool for getting a survey of the system status. It provides useful information about
the installed firmware, network configuration, pump laser status, motor status, recently occurred prob-
lems etc.
The command is non-invasive, i.e., it can be used during a measurement because it has no influence
on the laser emission.
NOTE ! The scale used here is monotonic, but not necessarily linear, i.e. a value of 0.5 does not
mean that the emitted power is 50 % of the maximum power.