In this episode Shahriar presents a deep dive into direct detection optical links. The video covers a wide range of topics from detailed module teardown, optical semiconductor discussions, free-space optic interconnect, theory of operation as well as comprehensive characterization of the end-to-end system behavior. Key chapters of the video are organized as follows:

00:00 – Theory of operation, block diagrams & instrument architecture
08:48 – Detailed teardown, optical module analysis, high-magnification imaging
24:32 – Optical link characterization, Siglent instrument ecosystem, radio-over-fiber demonstrations

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In this episode Shahriar takes a look at a 1984 Condor power supply from an old arcade machine. Multiple repair attempts of this supply had failed. Examining the schematics reveals how easily this power supply can self-destruct if the primary NPN switching transistor would fail.

The power supply arrived with a bag of replacement components including the power NPN device. But something doesn't seem right with the parts. Taking apart the original and replacement transistor tells us everything we need to know…

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Other links:
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