An All-Fiber WDM Channel Monitor Based on Acousto-Optic Tenable Filter with Built-in On-Fiber Detector

摘要

An all-fiber WDM channel monitor based on narrowband AOTF and on-fiber detector is demonstrated. By employing FSK modulation scheme, intrinsic wavelength accuracy of 0.02 nm is obtained for single channel detection and 0.05 nm for multiple channel detection.