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Over 20 GHz MMIC pre/postdistortion circuit for improved dynamic range broadband analog fiber optic link
Author(s) -
Myslinski P.,
Szubert C.,
Freundorfer A. P.,
Shearing P.,
Sitch J.,
Davies M.,
Lee J.
Publication year - 1999
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19990120)20:2<85::aid-mop1>3.0.co;2-#
Subject(s) - broadband , monolithic microwave integrated circuit , dynamic range , link (geometry) , optical fiber , materials science , electronic engineering , electrical engineering , optoelectronics , telecommunications , engineering , computer science , cmos , computer network , amplifier
An MMIC pre/postdistortion circuit for an analog fiber optic link based on a Mach–Zehnder modulator is designed, fabricated, and tested. The pre/postdistortion circuit operates in the bandwidth over 20 GHz, and improves the spurious free dynamic range of the broadband analog fiber link by 3 dB to 110 dB/Hz 2/3 . In addition, the unpackaged pre/postdistortion circuit chip operates to over the 50 GHz bandwidth. To the best of our knowledge, the described pre/postdistortion circuit improves the dynamic range of the fiber optic link in the widest bandwidth ever reported. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 20: 85–88, 1999.