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Synthesis of lossy noise matching network for flat-gain and low-noise tuned optical receiver design

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2 Author(s)
Park, M.S. ; Dept. of Electr. Eng., Sydney Univ., NSW, Australia ; Minasian, R.A.

A systematic synthesis method for lossy noise matching networks for ultra-low noise and flat-gain optical receivers is presented. The procedure utilises a topology from lossless matching network synthesis to obtain low noise, and introduces lossy network elements in the design to constrain the ripple variation of the gain to a specified value. An experimental tuned PIN-HEMT optical receiver with a gain flatness of /spl plusmn/0.8 dB over the entire frequency range and a measured average noise current of 5.04 pA//spl radic/(Hz) is demonstrated.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:6 ,  Issue: 2 )