OPTICAL FM AND HETERODYNE-DETECTION OF 2-CHANNEL 560 MBIT/S SUBCARRIER MULTIPLEXED ASK SIGNAL USING 3-ELECTRODE DFB-LDS

被引:4
作者
WATANABE, S
YOKOTA, I
NAITO, T
CHIKAMA, T
KUWAHARA, H
机构
[1] Fujitsu Laboratories Ltd, Nakaharu-ku, Kawasaki, 1015 Kamikodanaka
关键词
DETECTION; OPTICAL MODULATION;
D O I
10.1049/el:19910029
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An optical carrier was frequency-modulated by directly modulating a three-electrode DFB laser diode using two-channel 560 Mbit/s subcarrier multiplexed ASK signals, and was transmitted through 122.3 km of single-mode fibre. Both channels were heterodyne-detected and selected simultaneously by a bandpass filter. A receiver sensitivity of -32.4 dBm was obtained and a crosstalk penalty was less than 0.8 dB with channel spacing of 1.8 GHz.
引用
收藏
页码:44 / 46
页数:3
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