Tuned low-noise balanced distributed preamplifier using MMIC GaAs MESFET technology

Author

Nguyen, T.L. ; Freundorfer, A.P.

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada

fYear

1996

fDate

25 Feb.-1 March 1996

Firstpage

180

Lastpage

182

Abstract

Summary form only given. Balanced receivers with large bandwidths can be used in intensity-modulated (IM) lightwave systems or in continuous phase frequency shift-keyed (CPFSK) lightwave systems. In the IM system, they can be used at the receiver to obtain a duobinary encoded signal at the preamplifier output. In a coherent CPFSK system, the balanced receiver can improve the receiver sensitivity by 3 dB. With data rates in excess of one gigabit per second, both IM and CPFSK lightwave systems will require large bandwidth GaAs MESFET MMIC preamplifiers that have associated problems of high-frequency noise.

Keywords

III-V semiconductors; MESFET integrated circuits; MMIC; MMIC amplifiers; encoding; frequency shift keying; gallium arsenide; integrated optoelectronics; optical modulation; optical receivers; phase shift keying; preamplifiers; sensitivity; CPFSK lightwave systems; GaAs; IM system; MMIC GaAs MESFET technology; balanced receiver; balanced receivers; coherent CPFSK system; continuous phase frequency shift-keyed; data rates; duobinary encoded signal; high-frequency noise; intensity-modulated lightwave systems; large bandwidth GaAs MESFET MMIC preamplifiers; large bandwidths; preamplifier output; receiver; receiver sensitivity; tuned low-noise balanced distributed preamplifier; Bandwidth; Delay; Error analysis; Gallium arsenide; MESFETs; MMICs; Noise reduction; Phase modulation; Polarization; Preamplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communications, 1996. OFC '96

Print_ISBN

1-55752-422-X

Type

conf

DOI

10.1109/OFC.1996.908208

Filename

908208