OPROCESSOR Seeks Buyers for VCSEL Photonic Interposer Patent Portfolio: Aspirational Transaction Target of About US$1 Billion, SPIE Talk Set for February 2, 2027 in San Francisco
OPROCESSOR INC announced in Boston and Daejeon, South Korea, on November 11 that it is seeking potential acquirers for its United States patent portfolio and associated VCSEL-based photonic interposer technology, with an aspirational strategic transaction target of approximately US$1 billion.
The company said that as semiconductor scaling approaches its practical limits, future GPU performance will increasingly depend on integrating more compute dies, while conventional electrical interconnects face growing limitations in transmission distance, bandwidth and interposer size.
Its technical analysis identifies VCSEL-based photonic interposers as a promising solution, connecting multiple interposer chips through optical waveguide butt coupling to enable scalable, high-bandwidth, single-hop communication among GPU dies without requiring increasingly large electrical interposers, according to the release.
The analysis estimates that a 10 TB/s optical interface requires only 2.5 mm of chip-edge width, with a total optical loss of approximately 16.4 to 18.5 dB across eight interconnected GPUs. Supporting experimental research published in Photonics in August 2025 demonstrated VCSEL-to-waveguide coupling, with measured propagation and coupling losses of 0.444 dB/cm and 0.762 dB, respectively.
The company said it holds granted United States patents covering prism-based VCSEL coupling, wavelength multiplexing and photonic interposer integration, together with proprietary polyimide microlens fabrication know-how.
Founder Dr. Sahnggi Park said in the release that the patented technologies address critical challenges in scaling future multi-die GPUs and could provide a foundation for next-generation AI computing systems. Park will present the architecture at SPIE Photonics West 2027 on February 2, 2027, in San Francisco.
The company stated that the US$1 billion target reflects its strategic objective, not an independently appraised valuation, and that any transaction would be subject to technical and intellectual property due diligence and mutually agreed terms.
Founded in 2018, OPROCESSOR is a United States-registered semiconductor technology company developing patented VCSEL-based photonic interposers for high-bandwidth, energy-efficient optical interconnects in advanced AI computing systems.
Published by GSM · USA (original Chinese edition)
Photo: 图：研究人员测量一枚 VCSEL（垂直腔面发射激光器）的波长，一侧监视器显示测量画面。U.S. Department of Energy from United States 供图，公共领域，经 Wikimedia Commons / Photo: U.S. Department of Energy - Science - 463 025 001 (9468127570). By U.S. Department of Energy from United States, public domain, via Wikimedia Commons
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