Park, Vaughan, Fleming & Dowler LLP
Hybrid optical source with optical proximity coupling provided by an external reflector
A hybrid optical source comprises an optical gain chip containing an optical gain material that provides an optical signal, and an optical reflector chip including an optical reflector. It also includes a semiconductor-on-insulator (SOI) chip, which comprises a semiconductor layer having a planarized surface facing the semiconductor reflector. The semiconductor layer includes: an optical coupler to redirect the optical signal to and from the planarized surface; and an optical waveguide to convey the optical signal from the optical coupler. While assembling these chips, a height of the optical gain material is referenced against the planarized surface of the semiconductor layer, a height of the optical reflector is referenced against the planarized surface of the semiconductor layer, and the optical reflector is aligned with the optical coupler, so that the optical signal emanating from the optical gain material is reflected by the optical reflector and into the optical coupler.
Oracle International Corporation
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Jock T. Jin-Hyoung Jin Xuezhe Ashok V. Shiyun Ivan
Bovington Lee Yao Zheng Krishnamoorthy Lin Shubin