Production method for all-fibre quarter-wave plate

A technology of all-fiber wave plate and manufacturing method, which is applied in cladding optical fiber, optical waveguide lightguide, optical waveguide coupling, etc., can solve the problem that it is difficult to intercept a quarter of the beat length, the error of the all-fiber current transformer, All fiber optic current transformers are difficult to develop and other issues, to achieve the effect of improving the production level
CN102243333BInactive Publication Date: 2013-09-18INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
Publication Date
2013-09-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of all-fibre current transformer, particularly to a production method for an all-fibre quarter-wave plate. The invention provides a production method for an all-fibre quarter-wave plate aiming at the problems existed in the prior art, capable of efficiently solving the two difficult problems of a control to an axis angle and a precise interception to the 1 / 4 beat of length by a polarization maintaining optical fibre. The invention detailedly explains a production method for an all-fibre quarter-wave plate via a series of steps, and solves the problems existed in the prior art. The method is mainly applied to the production field of quarter-wave plate.
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Description

technical field

[0001] The invention relates to the field of all-fiber-optic current transformers, in particular to a method for manufacturing a quarter-wave plate in an all-fiber-optic current transformer. Background technique

[0002] For the development of all-fiber-optic current transformers, the annular or reflective Sagnac interferometer scheme is currently used. This scheme draws on the relatively mature fiber-optic gyroscope technology at present. The optical path structure, detection method, and key technology of these two technologies Almost exactly the same, the only difference is that the all-fiber current transformer has one more key optical device than the Sagnac-type fiber optic gyroscope—a quarter-wave plate, whose main function is to convert the linearly polarized light on the transmission line into a sensor for sensing. Circularly polarized light is the transition point between the transmitted optical signal and the sensory optical signal, thus using the Fa...

Claims

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