A bandwidth adjustable integrated optical receiver with an on-chip silicon avalanche photodetector
ABSTRACT A bandwidth adjustable integrated optical receiver hav-ing an on-chip silicon avalanche photodetector is realized with stan-dard 0.25-µm silicon-germanium bipolar complementary metal-oxide-semiconductor technology for optical interconnect applications. With the controllable capacitive degeneration technique, the optical receiver bandwidth can be adjusted for the best bit error rate performance.
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ABSTRACT: We present a monolithically integrated optical receiver fabricated with standard silicon processing technology for fiber-wireless IEEE 802.11 wireless local area network (WLAN) applications. The receiver contains a silicon avalanche photodetector and a transimpedance amplifier and has up to 5.6-GHz photodetection bandwidth. Using this integrated optical receiver, transmission of 54-Mb/s WLAN signals at 2.4-GHz and 5-GHz bands is successfully achieved with 2.6-% and 3.0-% error vector magnitude, respectively.