Title :
Reduction of nonlinear distortion in MQW semiconductor optical amplifier using light injection and its application in multichannel M-QAM signal transmission systems
Author :
Tai, Chien ; Tzeng, Sohn-Ling ; Hung-Chun Chan ; Way, Winston I.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
4/1/1998 12:00:00 AM
Abstract :
By using an external light-injected multiple-quantum-well (MQW) semiconductor optical amplifier (SOA), we have demonstrated a 100-km optical fiber link that transports 77 channels of 64-QAM signals. This is equivalent to a system capacity of 2.3 Gb/s, while using a laser bandwidth of only 550 MHz. Under a requirement of carrier to noise and nonlinear distortion ratio of 30 dB per channel, the 1310-nm gain-peaked SOA input dynamic range was increased from 0 to 9 dB due to an injected light with 8.8 dBm and a wavelength of 1284 nm.
Keywords :
cable television; laser noise; optical fibre networks; optical noise; optical transmitters; quadrature amplitude modulation; quantum well lasers; 100 km; 1284 nm; 1310 nm; 550 MHz; MQW semiconductor laser amplifier; MQW semiconductor optical amplifier; QAM signals; carrier to noise; gain-peaked SOA input dynamic range; injected light; laser bandwidth; light injection; multichannel M-QAM signal transmission systems; nonlinear distortion; nonlinear distortion ratio; optical fiber link; wavelength; Fiber lasers; Fiber nonlinear optics; Laser noise; Nonlinear distortion; Nonlinear optics; Optical distortion; Optical fibers; Quantum well devices; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
