Apparatus and method for simultaneous channel and optical signal-to-noise ratio monitoring

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 專利 > Item 987654321/53891

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题名:	Apparatus and method for simultaneous channel and optical signal-to-noise ratio monitoring
作者:	楊淳良;Yang, Chun-liang;Lee, San-liang;Wu, Jui-ting;Yang, Ming-hsiao
贡献者:	淡江大學電機工程學系
日期:	2003-06-14
上传时间:	2011-05-20 15:37:52 (UTC+8)
摘要:	An apparatus and method for simultaneous channel and optical signal-to-noise ratio (OSNR) monitoring is adapted to function in multi-channel wavelength-division-multiplexed (WDM) optical communication systems. A polarization controller is sequentially adjusted to perform the sequential polarization control with an optical signal. A polarization-selective electro-optic modulator acts as a polarizer and provides a signal dithering to improve the detection sensitivity. A beam splitter splits the dithered optical signal into two clusters. A photodetector receives the first cluster and measures the OSNR. An optical element receives the second cluster and monitors the channel wavelength of multiple channels. The apparatus can be packaged into a compact module and integrated on a chip. The channel monitoring covers a wide wavelength range and is tunable. The OSNR monitoring can be accurate over a wide dynamic range.
显示于类别:	[電機工程學系暨研究所] 專利

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