Monolithically integrated high-gain and high-sensitive photoreceivers with tunable filtering functions for subcarrier multiplexed optical/microwave systems
作者： H. Kamitsuna
DOI: 10.1109/22.414587
关键词:
摘要: This paper proposes monolithically integrated photoreceivers with tunable filtering functions using HBT-compatible HPT's for band-limited microwave subcarrier multiplexed transmission and optical/microwave signal processing systems. The filter photoreceiver, which consists of the HPT a positive feedback LC resonance circuit Q-damping resistor, realizes high quality factor (Q-factor) 37.7 photo-response peak frequency 13.6 GHz. Furthermore, it yields not only 24.1 dB 16.2 higher gain but also over 7.5 3.5 improvement in sensitivity at GHz without any spurious oscillation, comparison standard photodiode discrete HPT, respectively. tuner photoreceiver is constructed based on photoreceiver. By adapting varactor diode circuit, we realize functions, i.e., very-wide tuning range 11.0-14.6 Q-factor 20.2. chip size as small 1.0 mm/spl times/0.75 mm. developed promise to compact, cost-effective hardware or /millimeter-wave >
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