Micro-structure elliptical suspension core polarization maintaining optical fiber and manufacturing method thereof
A polarization-maintaining fiber and suspension core technology, which can be applied to polarization fibers, cladding fibers, etc., can solve the problems of long time and cumbersome manufacturing process, and achieve the effect of low manufacturing cost.
Inactive Publication Date: 2017-04-26
武汉长盈通光电技术股份有限公司
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However, the photonic crystal fiber is made through the capillary tube method, and the manufacturing process is cumbersome and takes a long time.
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[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0017] In an embodiment of the present invention, a microstructured elliptical suspended core polarization-maintaining optical fiber is provided, which includes a cladding, a core, and an air layer between the cladding and the core. The cross-section of the core is elliptical, and the cladding material is the same as The light-guiding material with the same core material, the core is suspended in the cladding through the glass sheet, the glass sheet is made of the same light-guiding material as the fiber core material, the two ends of the glass sheet are fixed on the inner diameter of the cladding, ...
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Abstract
The invention discloses a micro-structure elliptical suspension core polarization maintaining optical fiber and a manufacturing method thereof. The optical fiber comprises a cladding layer, a fiber core, and an air layer between the cladding layer and the fiber core. The cross section of the fiber core is elliptical. The cladding layer and the fiber core are made of the same material. The fiber core is suspended in the cladding layer through a glass sheet, wherein the fiber core and the glass sheet are made of the same material. The two ends of the glass sheet are fixed on the inner diameter of the cladding layer. The fiber core is fixed on the glass sheet. The long axis of the elliptical cross section of the fiber core is in the same direction with the glass sheet. According to the technical scheme of the micro-structure elliptical suspension core polarization maintaining optical fiber, the polarization state retaining performance of the optical fiber is realized through the elliptical micro-structure suspension core, so that the optical fiber is low in manufacturing cost and suitable for batch production. At the same time, the polarization retaining performance of the light is realized through the micro-structure elliptical-core optical fiber made of the same material. The optical fiber is free of any stress region, so that the problem that multiple materials of stress region type optical fibers are different in thermal expansion coefficient can be solved. Compared with a porous microstructure optical fiber, the perform of the above optical fiber is realized without the pileup of a large number of capillaries, so that the manufacturing process is simple.
Description
technical field [0001] The invention belongs to the technical field of polarization-maintaining optical fibers, and in particular relates to a polarization-maintaining optical fiber with a microstructure elliptical suspension core and a manufacturing method thereof. Background technique [0002] An interferometric fiber optic gyroscope is a fiber optic sensor used for inertial navigation, also known as a solid-state gyroscope because there are no moving parts. The sensitive part of the interferometric fiber optic gyroscope is the polarization maintaining fiber ring. Usually, the polarization maintaining optical fiber ring adopts the full-core panda type and bow tie type polarization maintaining optical fiber. The solid core polarization maintaining fiber introduces a pair of stress regions doped with high expansion coefficient materials, which are symmetrically distributed around the high refractive index core. The stress zone replaces the quartz material, so after the fib...
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IPC IPC(8): G02B6/024
CPCG02B6/024
Inventor 廉正刚
Owner 武汉长盈通光电技术股份有限公司