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Proceedings Paper

Distributed balanced photodetectors for high-performance rf photonic systems
Author(s): Saiful Islam; Tai B. Chau; Ming C. Wu; Deborah L. Sivco; Alfred Y. Cho
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Paper Abstract

A novel velocity-matched distributed balanced photodetector operating at 1.3 and 1.55 micrometers wavelengths has been experimentally demonstrated. Distributed absorption and velocity matching of the optical and microwave signals are employed to achieve high saturation photocurrent. A common mode rejection ratio greater than 27 dB has been achieved over a wide range of photocurrents. More than 24 dB suppression of the relative intensity noise of the laser source and EDFA added noise has been achieved in a broadband RF link experiment. Shot noise limited performance has been achieved with significant improvements in the signal-to- noise ratio.

Paper Details

Date Published: 12 November 1999
PDF: 14 pages
Proc. SPIE 3795, Terahertz and Gigahertz Photonics, (12 November 1999); doi: 10.1117/12.370170
Show Author Affiliations
Saiful Islam, Univ. of California/Los Angeles (United States)
Tai B. Chau, Univ. of California/Los Angeles (United States)
Ming C. Wu, Univ. of California/Los Angeles (United States)
Deborah L. Sivco, Lucent Technologies/Bell Labs. (United States)
Alfred Y. Cho, Lucent Technologies/Bell Labs. (United States)

Published in SPIE Proceedings Vol. 3795:
Terahertz and Gigahertz Photonics
R. Jennifer Hwu; Ke Wu, Editor(s)

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