Spectrum, time and protocol domain optical performance monitor

摘要

A spectrum, time and protocol optical power monitor is disclosed. This device utilizes a same photodetector to perform spectral optical monitoring of an incoming optical signal, as well as performing timing and protocol monitoring for preselected wavelength channels. Advantageously the device uses a same passband tunable optical filter for both the spectrum and timing/protocol measurements. The spectral response of the filter passband is deconvolved from the spectral scan in order to achieve improved spectral scan resolution, and the timing and protocol measurements are not degraded by the passband of the filter.