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A kind of manufacturing device and manufacturing method of polarization maintaining optical fiber preform rod

A polarization-maintaining fiber and manufacturing device technology, which is applied to manufacturing tools, glass manufacturing equipment, etc., can solve the problems of adverse effects of polarization-maintaining fiber strength and optical performance, high surface roughness of processing holes, and difficulty in satisfying drill strength. Easy to implement operation, high fiber production efficiency, long draw length effect

Active Publication Date: 2016-03-02
JIANGSU HENGTONG PHOTOELECTRIC +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, drilling requires high-precision machining. Due to the relationship between precision, a slight deviation will result in high surface roughness in the processed hole and poor symmetry between the two processed holes. In addition, the requirements for the drill bit are relatively high, and the drill bit is small. The strength is not easy to satisfy. As the processing depth increases, the tip of the drill bit will swing outwards by centrifugal force. Therefore, the exit of the processing hole is generally larger than the entrance of the processing hole, and the processing efficiency is low; The strength and optical properties of the processed PM fiber are adversely affected

Method used

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  • A kind of manufacturing device and manufacturing method of polarization maintaining optical fiber preform rod
  • A kind of manufacturing device and manufacturing method of polarization maintaining optical fiber preform rod

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[0038] The specific example is as follows: first select a mandrel 1 with a diameter of 20mm manufactured by the VAD process, and a doped B rod with a diameter of 26 mm manufactured by the MCVD process. 2 o 3Two polarization-maintaining stress rods 4, fix the prepared glass core rod in the middle of the claw 2 of the disc body 1, fix the stress rod in the two slots on the claw 3, adjust the center of the stress rod and the core rod The distance between the centers is 29 mm, and the centers of the two grooved sections are on the same straight line as the center of the cross-section of the glass core rod, and then the above-mentioned assembly is fixed on the OVD deposition lathe, and the above-mentioned glass core rod and stress rod assembly are deposited Pure SiO 2 Porcelain cladding, so that the glass core rod and stress rod are wrapped in the cladding. In the process of depositing the cladding, the angular velocity of the rotation is designed to ensure that the final sintere...

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Abstract

The invention relates to a manufacturing device and a manufacturing method for a polarization maintaining optical fiber preform. The device comprises a disk with scaled calibration, four claws forming a cross shape and screws in one-to-one correspondence and meshing connection with the claws; and the rotating screw can control relative movement of the four claws. Two claws in the horizontal direction are respectively provided with a groove with adjustable diameter.

Description

technical field [0001] The invention relates to the field of polarization-maintaining optical fiber manufacturing, in particular to a manufacturing device and method for a polarization-maintaining optical fiber preform. Background technique [0002] Polarization-maintaining fiber, also known as polarization-maintaining fiber, is a kind of special fiber, and it is a type of fiber that maintains the linear polarization direction of the transmitted light. Polarization-maintaining fibers can be used in many fields, such as multiplexing coherent communication, fiber optic gyroscopes, fiber optic hydrophones, polarization sensing, etc. Especially in the field of fiber optic sensing, it is the core sensing component of military sensors such as optical integrated devices, polarization-maintaining fiber coupling, and fiber optic gyroscopes. [0003] According to the different cross-sectional structures, there are four common types of polarization-maintaining fibers commercially avai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B37/018
Inventor 李晓东江平马建强肖华王友兵沈震强赵奉阔柏文俊
Owner JIANGSU HENGTONG PHOTOELECTRIC
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