Preparation method and device of high-double-refraction rotary optical fiber

Abstract

The invention discloses a preparation method and device of a high-double-refraction rotary optical fiber. The method adopts the rotating and filament collecting integrated comprehensive control, and is characterized in that a prefabricated bar (2) is sent to a filament pulling furnace (3) through a bar sending device (1) to be heated into a molten state, the traction of the optical fiber is achieved through the rotating speed difference of a flying fork (13) and a filament collecting drum (14), the optical fiber can be twisted to be transmitted to a melting area from bottom to top when the flying fork (13) rotates, and then rotation is achieved in the optical fiber so that the rotary optical fiber producing aim can be achieved. The invention further discloses the device for the rotating and filament collecting integrated comprehensive control. The device is characterized by comprising a flying fork rotating module, a filament collecting drum rotating module and a filament arranging module which are integrated on the same machine frame mechanism (20). The device is small in structure, high in integrity, capable of being conveniently installed on and detached from a filament pulling tower, high in rotating speed and suitable for high-double-refraction rotary optical fibers and other optical fibers with the requirement for single-direction rotation and high requirements for rotating speed.

Description

technical field [0001] The invention relates to a preparation method and equipment for a high birefringence rotating optical fiber, which is a preparation process for a rotating special optical fiber. Background technique [0002] In recent years, all-fiber current transformers have become the development trend of new current transformers due to their advantages such as large dynamic range, wide frequency band, flexible installation, strong anti-electromagnetic interference ability, and measurable AC and DC signals. The all-fiber current transformer is based on the Faraday effect and uses the sensing fiber ring as the sensitive element. First of all, it is required that the light in the sensing fiber ring can maintain the circular polarization state, so that the left-handed circularly polarized light and right-handed circularly polarized light propagating in the fiber ring can perceive the Faraday effect caused by the current change, and thus produce a certain phase differen...

AI Technical Summary

Problems solved by technology

[0007] The invention discloses a preparation method and equipment for a high-birefringence spinning optical fiber, which adopts a method of integrated control of rotation and collection, especially to solve the problem that the high-birefringence spinning optical fiber cannot be rotated and drawn at high speed during the preparation process

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