A cryogenic eight-channel optical-to-microwave converter sparks RF-photonics discussion

jwt0625 · x · 2026-07-21

A cryogenic wavelength-multiplexed optical-to-microwave converter draws RF-photonics interest

The post points to a Bisang2026 paper on a cryogenic wavelength-multiplexed eight-channel optical-to-microwave converter.

The accompanying comment is a practical RF-photonics take: after the usual “put everything on-chip” phase, the harder questions become efficiency, light leakage, heat, and actual plumbing.

In other words, the discussion is about the engineering reality of cryogenic RF/photonics systems, not just a flashy concept demo.

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