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光通信领域密集波分复用(DWDM)技术的应用,客观上对光谱结构特性的测试技术提出了新的要求,同时对光谱测试的需求大大增加、测试准确度要求更高。相对于仅能进行光功率测量的光功率计,目前测量DWDM光性能参数的最佳仪器是光谱仪,利用光谱仪可以扫描信号的整个频谱,同时测量所有光通道的
The application of Dense Wavelength Division Multiplexing (DWDM) technology in the field of optical communication objectively sets new requirements on the testing technology of spectral structure characteristics, and at the same time, the demand for spectral testing is greatly increased, and the testing accuracy is more demanding. At present, the best instrument for measuring the performance parameters of DWDM light is the spectrometer, which can scan the entire spectrum of the signal with respect to the optical power meter that can only perform optical power measurement, and measure all the optical channels