In this episode Shahriar combined two Newport 1936-R optical power meters into a dual-channel model 2936-R. The teardown of the unit as well as the sensitive acquisition boards are presented.
The model conversion is rather simple once the core firmware is analyzed. After a successful conversion, the unit's performance is verified using two identical photodiodes and a HeNe Class IIIb laser. Lastly, trichromatic prism optical combiner is used to measure both the transmission & isolation performance from one of its colored ports.
Please consider supporting The Signal Path:
https://www.TheSignalPath.com/Donate
https://www.Patreon.com/TheSignalPath
Other links:
https://www.TheSignalPath.com
https://www.Twitter.com/TheSignalPath
Leave a Reply