This software can be used to lock the frequency of a laser using wavemeter as a reference. The feedback loop is done by fetching a wavemeter reading and control the frequency of a RF device, in this case the Windfreak. The current version only supports SynthUSBII: 34MHz – 4.4GHz USB RF Signal Generator. (For more information, https://windfreaktech.com/product/usb-rf-signal-generator/).
Currently, I have refactored the code a bit such that the program starts even without any available devices. I would come back and do more cleaning up.
The GUI of the software is shown here
For now, there is no wheels or docker files that can provide a smooth installation.
Users can clone the project from github: https://github.com/ngchihuan/windfreak-pycontrol.git and run the software using terminal commandpython2 control_gui.py.
Dependencies:
Python3 and its builtin libraries.
PyQt5=5.15.6
pyserial==3.5
Run the software using terminal commandpython3 control_gui.py
Step 1. Choose the windfreak device using the drop list which shows available devices listed as serial devices in linux.
Step 2. Click connect to the windfreak. Controller status is shown on the top left corner.
Step 3. Set the frequencies, power and channel. The second row Set Freq can be used to ramp up/down the frequencies slowly.
Step 4. Device on to turn on
Step 5 (Optional): Set the target wavelength and click the buttonLOCK. if the Locking is successful, the button would change to LOCKED
control_gui.py: the main app.
windfreakgui.ui: the Qt4 gui of the main app.
windfreak_control3.py: acute library used to send commands to windfreak devices written by Nick Lewty in 2014.
Potential issues include occasional freezing during the ramp up and down of frequency. Any other issues and suggestions can be posted to the github issue section of this repo.