Membrane type optical fiber code recognition system and method

Abstract

The invention discloses a membrane type optical fiber code recognition system. The system comprises a light source module which is used for outputting a light wave signal for testing; a circulator which is provided with a first port, a second port and a third port, wherein the first port is connected with the output end of the light source module; an optical fiber of which the input end is connected with the second port of the circulator; a membrane type optical fiber code which is connected with the output end of the optical fiber; a waveform detector of which the input end is connected withthe third port of the circulator; and a main controller which is electrically connected with the light source module and the waveform detector. By adopting the membrane type optical fiber code which is detachable from the optical fiber, the code is flexible to install and use, small in thickness and low in cost, does not occupy the length of the optical fiber, has a larger and more uniform reflection area compared with the traditional fiber type optical fiber code of a linear grating and a planar membrane type optical fiber code, can improve the light ray code recognition precision, and can bedirectly attached to an external communication device.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to a film-type optical fiber code recognition system and method. Background technique [0002] In the field of optical fiber communication, the optical fiber code is composed of multiple fiber gratings with different wavelengths, and the optical code recognition system is an optical detection system that accurately identifies the wavelength of the fiber grating. Existing optical fiber codes are linear gratings directly formed in the fiber core of the optical cable, which depend on the length of the optical cable itself, and are not very flexible to use. Different optical fibers need to be formed with different grating codes, and it is difficult to cooperate with external communication devices. The optical fiber that takes up the length of one end is required to shape the optical fiber code, which increases the overall length of the product and the material cost. Contents...

AI Technical Summary

Problems solved by technology

Existing optical fiber codes are linear gratings directly formed in the fiber core of the optical cable, which depend on the length of the optical cable itself, and are not very flexible to use. Different optical fibers need to be formed with different grating codes, and it is difficult to cooperate with external communication devices. The optical fiber that takes up the length of one end is required to shape the optical fiber code, which increases the overall length of the product and the cost of materials

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