Abstract
In this paper, the noise-matching theory used for microwave amplifiers is introduced into the design of a general high-speed optical receiver front-end circuit. The trade-off of the low-noise and broadband design of the front-end circuit is clarified quantitatively. As a design example, a commercially available PIN photodiode and HJ-FET (fmax = 60 GHz) are used and a 20 Gbit/s noise-matched PIN-FET optical receiver front end at an optical wavelength of 1.55 μm is designed. A trans-impedance gain of 53 ± 3 dBω, bandwidth of 17 GHz, sensitivity of −14 dBm in the simulation, and dynamic range of 16 dB are obtained. © 2005 Wiley Periodicals, Inc. Electron Comm Jpn Pt 1, 88(10): 45–54, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/ecja.20159
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