Title :
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
fDate :
25 Feb.-1 March 1996
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;
Conference_Titel :
Optical Fiber Communications, 1996. OFC '96
Print_ISBN :
1-55752-422-X
DOI :
10.1109/OFC.1996.908208
