Optic fibre grating packing device

Abstract

An optical fibre raster package has two V-shaped supporters hinged to become shears shape. The optical fibre raster is stuck on inner surfaces of long arms of two supporters. The one end of metal wire is stuck on the inner surface of short arm of one supporter and its another end is stuck to the regulating screw mounted to another supporter. One supporter is mounted to base. Its advantages are uniform stress, compensation of wavelength drift of optical fibre, and wide tunning range.

Description

technical field [0001] The invention relates to fiber grating packaging technology, in particular to a fiber grating packaging device capable of temperature compensation and tuning. Background technique [0002] Fiber Bragg Grating is an all-fiber device developed rapidly after the discovery of the photosensitive properties of the grating. Ultraviolet radiation on photosensitive optical fiber can cause permanent change in the refractive index of the optical fiber, and according to this effect, the fiber core is periodically exposed to obtain a fiber grating. It has a series of excellent properties such as large reflection bandwidth, small additional loss, small size, miniaturized device, good coupling with optical fiber, compatible with other optical fiber devices, and not affected by environmental dust. Fiber gratings can be used to make high-performance optical communication devices such as wavelength division multiplexing / demultiplexing devices, ...

AI Technical Summary

Problems solved by technology

[0003] The length of a high-quality fiber grating used for dispersion compensation is generally longer, and its central reflection wavelength will drift with the fluctuation of the environment, and the longer the grating, the longer its reflection spectrum will be affected by temperature, resulting in inaccurate dispersion Compensation will lead to degradation of system performance and hinder the practical application of fiber gratings

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