Passive wavelength division fault detection system

• Main Authors: HUANG CUICUI, SHAO TIANMIN, HU JIN, GUO ZHIPENG, ZHANG YANG
• Format: Patent
• Language: Chinese; English
• Published: 10.12.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The invention discloses a passive wavelength division fault detection system, which comprises a reference system, wherein the reference system is located on one side of a system to be detected, an optical line terminal in the reference system is used for emitting reference light, and the reference light sequentially passes through an optical repeater, an optical amplifier and a wavelength division multiplexer for signal transmission; the system to be detected, wherein a to-be-tested optical fiber emitter in the system to be detected is used for emitting to-be-tested light, and the to-be-tested light sequentially passes through the optical time domain reflectometer, the optical circulator, the optical amplifier and the wavelength division multiplexer to carry out signal transmission; an optical splitter arranged on one side of the wavelength division multiplexer, wherein a second signal processing structure and a first signal processing structure are arranged between the optical splitter and the detector. Acco