ABSTRACT
In recent years, optical fiber communication has made rapid development. Optical transceiver module (OTM) as a key component of fiber optic communication network is widely used in a variety of optic-fiber communication systems, and various networks need more and more types of optical fiber modules with function increasingly demanding.To meet the growing demand, OTM is developed toward the high-speed and intelligent direction. Intelligence OTM, which includes the function of Digital Diagnostic Monitoring (DDM), is regarded as an iconic product by many manufacturers who wanted to upgrade their technology in SFP optical transceiver modules.
