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Method and system for optoelectronic receivers utilizing waveguide heterojunction phototransistors integrated in a CMOS SOI wafer
Method and system for optoelectronic receivers utilizing waveguide heterojunction phototransistors integrated in a CMOS SOI wafer
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机译：利用集成在CMOS SOI晶片中的波导异质结光电晶体管的光电接收器的方法和系统
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摘要
A method and system for optoelectronic receivers utilizing waveguide heterojunction phototransistors (HPTs) integrated in a wafer are disclosed and may include receiving optical signals via optical fibers operably coupled to a top surface of the chip. Electrical signals may be generated utilizing HPTs that detect the optical signals. The electrical signals may be amplified via voltage amplifiers, or transimpedance amplifiers, the outputs of which may be utilized to bias the HPTs by a feedback network. The optical signals may be coupled into opposite ends of the HPTs. A collector of the HPTs may comprise a silicon layer and a germanium layer, a base may comprise a silicon germanium alloy with germanium composition ranging from 70% to 100%, and an emitter including crystalline or poly Si or SiGe. The optical signals may be demodulated by communicating a mixer signal to a base terminal of the HPTs.
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