Title :
Frequency stabilized 622-Mb/s 16-channel optical FDM system and its performance in 1.3/1.55-μm zero-dispersion fiber transmission
Author :
Mizuochi, Takashi ; Shimizu, Katsuhiro ; Shimomura, Kenkichi ; Ishimura, Eitaro ; Kitayama, Tadayoshi ; Ito, Katsuyoshi
Author_Institution :
Commun. Syst. Dev. Lab., Mitsubishi Electr. Corp., Kamakura, Japan
fDate :
10/1/1995 12:00:00 AM
Abstract :
A study has been conducted on a densely multiplexed 16-channel optical FDM system. A transmitter contains 16 two-section MQW DFB-LD´s and a star coupler. An automatic optical multi-frequency controller stabilizes each LD of 10 GHz spacing within ±100-MHz accuracy. A receiver consists of heterodyne-delay-demodulators using a polarization diversity. Any desired channel can be tuned by a novel frequency discriminator with no insensitive frequency region. The system has successfully transmitted 622 Mb/s-16-channel HDTV signals through 110 km long 1.3 μm-zero-dispersion fiber. We have also studied error rate degradation due to four-wave mixing in a 1.55 μm-dispersion-shifted-fiber. Experimental results have revealed the allowable total input power to be +2 dBm for dispersion-shifted fibers
Keywords :
demodulation; distributed feedback lasers; frequency division multiplexing; high definition television; laser frequency stability; multiwave mixing; optical fibre dispersion; optical fibre networks; optical fibre polarisation; optical receivers; optical transmitters; quantum well lasers; 1.3 mum; 1.55 mum; 110 km; 16-channel HDTV signals; 16-channel optical FDM system; 622 Mbit/s; automatic optical multi-frequency controller; densely multiplexed 16-channel optical FDM system; dispersion-shifted fibers; error rate degradation; four-wave mixing; frequency discriminator; frequency stabilized; heterodyne-delay-demodulators; polarization diversity; receiver; star coupler; total input power; transmitter; two-section MQW DFB-LD´s; zero-dispersion fiber; zero-dispersion fiber transmission; Automatic control; Fiber nonlinear optics; Frequency division multiplexing; Nonlinear optics; Optical control; Optical fiber polarization; Optical mixing; Optical receivers; Optical transmitters; Quantum well devices;
Journal_Title :
Lightwave Technology, Journal of
