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A WDM COMMUNICATION SYSTEM UTILIZING WDM OPTICAL SOURCES WITH WAVELENGTHS AND LIGHT INTENSITY, AND METHOD FOR STABILIZATION THEREOF
A WDM COMMUNICATION SYSTEM UTILIZING WDM OPTICAL SOURCES WITH WAVELENGTHS AND LIGHT INTENSITY, AND METHOD FOR STABILIZATION THEREOF
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机译:使用具有波长和光强度的WDM光学源的WDM通信系统及其稳定方法
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摘要
A multichannel WDM transmission system incorporates a plurality of WDM optical sources with stabilized wavelengths and light intensity. Efficient stabilization of these characteristics is achieved by modulation of WDM sources by distinguishing low frequency electrical signals in a range between 1 and 4 kHz and modulation depth in a range between 1 % and 5 % that are used as WDM source identifiers. After the modulated outputs of the WDM sources are multiplexed and filtered, a Fourier transform of total light intensity may be obtained. Digital feedbacks provide stabilization of both the wavelength and light intensity of each WDM optical source.
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