A low-power 10 Gb/s AGC optical postamplifier in SiGe

A 10 Gb/s automatic gain control amplifier for use in optical receivers was implemented in a SiGe process with f/sub T/=45 GHz. Active peaking techniques were used to achieve a maximum gain of 48 dB with 7.8 GHz of bandwidth. The amplifier demonstrates less than 0.5 dB of peak-to-peak output amplitu...

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Bibliographic Details
Main Authors: Kucharski, D., Kornegay, K.T.
Format: Conference Proceeding
Language:English
Subjects:
Broadband amplifiers
Circuits
Gain control
Germanium silicon alloys
Jitter
Optical amplifiers
Optical attenuators
Optical receivers
Silicon germanium
Stimulated emission
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Description
Summary:A 10 Gb/s automatic gain control amplifier for use in optical receivers was implemented in a SiGe process with f/sub T/=45 GHz. Active peaking techniques were used to achieve a maximum gain of 48 dB with 7.8 GHz of bandwidth. The amplifier demonstrates less than 0.5 dB of peak-to-peak output amplitude variation over a 50 dB input amplitude range. It consumes 30 mW of power from a 3.3 V supply and remains functional at voltages as low as 2.7 V. The amplifier core occupies 0.1 mm/sup 2/ and requires no external components.
ISSN:1529-2517
2375-0995
DOI:10.1109/RFIC.2004.1320514