首页> 外文会议>Global Telecommunications Conference, 1991. GLOBECOM '91. 'Countdown to the New Millennium. Featuring a Mini-Theme on: Personal Communications Services >A tuning technique of 128 ch. frequency selection switches for optical FDM information distribution systems
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A tuning technique of 128 ch. frequency selection switches for optical FDM information distribution systems

机译:128 ch的调谐技术。光纤FDM信息分配系统的频率选择开关

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摘要

A tuning technique for 10 GHz spaced, 128-channel frequency-selection switches is described. It utilizes optical frequency division multiplexing (OFDM) information distribution systems with a frequency-shift-keying-direct-detection (FSK-DD) configuration. The frequencies of seven Mach-Zehnder (MZ) filters can be locked to the center frequency of the desired FSK signal by making use of FSK-ASK conversion effects of the transmittance characteristics of the MZ filters. The frequency offset and fluctuation of the MZ filters can be compressed to within 2% of their frequency spacing. This percentage is low enough to construct OFDM information distribution systems.
机译:描述了一种用于间隔为10 GHz的128通道频率选择开关的调谐技术。它利用具有频移键控直接检测(FSK-DD)配置的光频分复用(OFDM)信息分发系统。通过利用MZ滤波器的透射率特性的FSK-ASK转换效应,可以将七个Mach-Zehnder(MZ)滤波器的频率锁定到所需FSK信号的中心频率。 MZ滤波器的频率偏移和波动可以压缩到其频率间隔的2%以内。这个百分比足够低,无法构建OFDM信息分发系统。

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