Centera Photonics: Elaser's Silicon Photonics Spin-off Is Really the Designer of the Entire Optical Path
When Taiwanese companies talk about CPO, they usually mean one component: FOCI makes fiber arrays, SENKO and Teramount handle fiber coupling. But there is a different kind of player, one that owns the design of the entire optical engine and hands manufacturing to its parent. Centera Photonics (TPEx Emerging Stock Board: 7917, listed July 29, 2026) is exactly that kind of company.
First, let's pin down the name: Centera is not LandMark Optoelectronics, nor is it China's 源杰. Its parent is Elaser (Elite Advanced Laser, brand eLaser, TWSE: 3450). Elaser holds about 54.23% of Centera, which is why it is often called Elaser's "golden goose" spin-off.
Business model: design in-house, packaging and test by the parent
Centera runs a fabless-lite model: it owns the design and sales of optical transceivers and optical engines, while all physical manufacturing, packaging and testing are contracted to its parent Elaser. Product ladder: 400G in volume production, 800G in qualification, 1.6T ELSFP shipping in small volumes, and in-house LPO under qualification. It targets North American cloud customers, is US TAA-compliant, and has no China business.
Five stages of the optical path, a Centera patent at every one
Lay out Centera's patents along "the life of light inside the chip" and all five stages are covered (US case | Taiwan family member):
Light source integration: high-NA (≥0.5) waveguide that couples directly to the laser without lenses (US9729243; no Taiwan family member).
WDM waveguides: multi-wavelength + AWG multiplexing, multilayer waveguides to avoid crossings (US10890718 / TW202020495A; US11181691 / TWI706177B).
Modulation / detection (CPO core): monolithic integration of SOH modulator + photodetector + driver amplifier (US20260029672 / TWI897547B).
Wafer-level packaging: wafer-level optoelectronic module process and substrate (US8580589B1; TWI433323B, etc.).
Fiber coupling: optical connector + detachable package (US10234643 / TW201732338A; US9923103 / TWI443782B).
Two features that aren't obvious at first glance, but matter
First, Centera is the designer of the entire optical path, not a component vendor guarding a single stage. That makes it more like a scaled-down optical engine platform, with manufacturing handed to Elaser.
Second, it files almost exclusively on a dual US + Taiwan track, skipping PCT/EP (the whole portfolio has only one China family member). On the Taiwan side it holds 10 granted invention patents + 4 published applications, all currently assigned to Centera. And the most intriguing part: the core CPO patent was granted in Taiwan in 2025 while the US case is still under examination. This spin-off's core IP landed in Taiwan first.
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That's the summary of this article.
STT's full analysis: the three ways Centera differs from everyone else (dual US + TW filing with Taiwan landing first, a bet on monolithic SOH modulator integration, and a lifeline tied to parent Elaser), plus three watch points to resolve before investing: the outcome of the SOH/CPO US case, the hard specs and volume ramp of the SOH optical engine, and whether in-house 1.6T LPO plus Elaser's capacity can support the post-listing valuation. It is all in the paid section, including all 6 original schematics, a Taiwan patent inventory table and a US↔TW stage-by-stage mapping.
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