High-density multiple-wavelength optical time domain reflectometer

Abstract

The invention discloses a high-density multiple-wavelength optical time domain reflectometer. Broad band measuring optical waves of the optical time domain reflectometer are converted into a plurality of assignable narrow band optical waves by using a wave band selection principle and assigned wavelengths can be sent to an optical fiber network to achieve the aim of measuring or monitoring the optical loss at any position in the optical fiber network. The device comprises a control module (1), an OTDR (Optical Time Domain Reflectometer) (2), an optical circulation module (Optical Circulator) (3), an optical amplification module (4) and a narrow band selection module (5), wherein the control module is used for mainly controlling relevant modules and carrying out the flows of measuring and monitoring according to assigned requirements; the optical time domain reflectometer is used for sending out the broad band measuring optical waves and calculating returned optical waves; the optical circulation module is used for introducing the optical waves into a relevant target module; the optical amplification module is used for amplifying the optical power of the narrow band optical waves; and the narrow band selection module is used for converting coming light into the narrow band optical waves and sending out the assigned narrow band optical waves.

Description

technical field [0001] The invention relates to a high-density multi-wavelength optical time domain reflector. Background technique [0002] With the rapid growth of the global Internet, the traditional network has been unable to cope with the demand for high-speed information transmission applications caused by the communication revolution. The maturity of the optoelectronic industry technology and the diversification of product applications are timely for the rapid growth of the global Internet, high-quality multimedia networks and The large amount of bandwidth required by various data communications provides the best solution. Therefore, various optical communication network architectures have emerged one after another, among which the passive optical network service system is the most promising. In order to meet the measurement and monitoring requirements of the special network architecture after the service system is widely used in the future, it is necessary to invent...

AI Technical Summary

Problems solved by technology

However, in the face of passive optical networks, due to the innate architecture of multiple divergent routes, it appears to be stretched, because the single-wavelength measurement method can no longer individually identify the status of each divergent optical fiber network

Images