公开(公告)号：US20040212800A1

公开(公告)日：2004-10-28

申请号：US10441525

申请日：2003-05-21

Applicant: National Taiwan University of Science and Technology

Inventor： San-Liang Lee ,  Chun-Liang Yang

IPC: G01J004/00

CPC classification number: G01J9/00

Abstract: A simultaneous optical isolation and channel monitoring system for monitoring a channel of an incident light is provided. The system includes an optical isolator for receiving an incident light so as to isolate an interference of backward light into the cavity of laser source or an optical amplifier, wherein after passing through the optical isolator, the incident light has a different polarization state output changing with a wavelength thereof, a beam splitter connected to the optical isolator for separating the light into a light to output and a light for monitoring signal, a linear polarizer connected to the beam splitter for filtering a quantity of signal from the monitored light, and a photodetector connected to the linear polarizer for detecting the quantity of signal generated from the monitored light so as to monitor the channel.

Abstract translation: 提供了用于监测入射光通道的同时光隔离和通道监测系统。 该系统包括用于接收入射光的光隔离器，以便将后向光的干涉与激光源的空腔或光放大器隔离，其中在通过光隔离器之后，入射光具有与 连接到光隔离器的光束分离器，用于将光分离成光输出和用于监视信号的光;连接到分束器的线偏振器，用于对来自被监视光的信号进行滤波;以及光电检测器 连接到线性偏振器，用于检测从监视光产生的信号量，以便监视通道。