Method for producing polarization maintaining optical fibre

Abstract

The making process of circular polarization maintaining fiber includes deposition process to make core rod and stress rod with preserved coating, machining mechanically the matched sides of the core rod and the stress rod to reach the matching interval requirement, machining mechanically the inner hole of quartz casing for fitting the combined cross section of the core rod and the stress rod, setting the machined core rod and stress rod into the quartz casing for matching tightly to constitute prefabricated rod for circular polarization maintaining fiber, drawing, cleaning, and re-drawing to form fiber. The making process has high precision, high product quality and powerful adaptability, and is suitable for mass producing circular polarization maintaining fiber product.

Description

technical field

[0001] The invention relates to a method for manufacturing a polarization-maintaining optical fiber. In particular, it relates to a method for manufacturing panda-type polarization-maintaining optical fiber. The polarization-maintaining optical fiber and single-mode single-polarization optical fiber working at various wavelengths can be manufactured by applying the manufacturing method. Background technique

[0002] Polarization maintaining fiber is a kind of special fiber. Polarization maintaining fiber, that is, polarization maintaining fiber, is a type of fiber that maintains the linear polarization direction of the transmitted light. Polarization-maintaining optical fiber can be applied in many fields, such as multiplexing coherent communication, fiber optic gyroscope, fiber optic hydrophone, polarization sensing, etc. Polarization maintaining fiber is a special fiber type with wide application value.

[0003] In ordinary communication optical fiber, ...

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