TPP polymer waveguides could replace VCSEL microlens arrays, surviving immersion cooling fluid
jwt0625 · x · 2026-10-13
The author flags an optics packaging development: DOW-based polymer waveguides (via two-photon polymerization) replacing microlens arrays for VCSELs, and operating directly in immersion cooling fluid. The diagram claims:
- No active alignment
- Near-zero optical crosstalk
- Ultra-low reflection / scattering noise
- Higher reliability and longer lifetime
Removing active alignment and multi-channel lens assemblies cuts manufacturing complexity; the author suspects a high-throughput TPP startup (guessing Irradiant Technologies) is involved. A hardcore datacenter interconnect/packaging supply-chain item.
Related event: Polymer Waveguides and Glass Substrates Advance Near-Packaged Optics(2 posts)→
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