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answer: direct
beat: science
source: 1 article · updated: November 6, 2026
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Is the isolator-free transmitter commercially available?

The announcement describes a research prototype and a possible path to more compact photonic integrated circuits. It does not announce a commercial product or production deployment.

Answered in

Waseda’s Photonic Transmitter Controls Reflections Without an Isolator

A silicon nitride and lithium niobate transmitter reached 180 Gbit/s without an optical isolator in a lab experiment.

Crashtech Editorial November 6, 2026 Science

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