Manufacture method of all-optical fiber heavy pressure gas chamber based on hollow photon crystal optical fibre

Abstract

The invention discloses a manufacturing method for a full optical fiber high-pressure gas chamber based on a hollow-core photon crystal fiber. The steps of the invention are as follows: a) two ends of a hollow-core photon crystal fiber (1) are respectively communicated with an airtight A chamber (2) and an airtight B chamber (3), and one end of gas distribution equipment (4) is communicated with the airtight B chamber (3), and the other end of the gas distribution equipment (4) is respectively connected with a vacuum pump (5) and a gas source (6) to be inflated; b) the airtight B chamber (3) is connected with the vacuum pump (5) through the gas distribution equipment (4) first, after the required vacuum degree is achieved, the airtight B chamber (3) is connected with the gas source (6) to be inflated again through the gas distribution equipment (4) until air pressure of the airtight A chamber (2) is more than or equal to one atmospheric pressure; c)the two ends of the hollow-core photon crystal fiber (1) are successively welded with a standard single film fiber (10) within a range of less than or equal to 1.5 min; d) a distillation function p(x) of air pressure of a fiber core in the hollow-core photon crystal fiber (1) is derived from a formula p(x)=p(1)(-c+a2-bx); e) a final air pressure value of the full optical fiber high-pressure gas chamber is calculated by more than one p(x). The p(x) can accurately determine the air pressure value of the full optical fiber high-pressure gas chamber.

Description

technical field The invention relates to a method for manufacturing an all-fiber gas chamber, in particular to a method for manufacturing an all-fiber high-pressure gas chamber based on a hollow-core photonic crystal fiber. Background technique Hollow-core photonic crystal fiber (HC-PCF for short) is a new generation of low-loss transmission fiber developed in recent years. It has important applications in power light wave energy transmission, optical pulse dispersion and nonlinear transmission control, and new photonic devices. Since the hollow-core photonic crystal fiber confines the light wave in the large hole of the fiber core to transmit in the form of the fundamental mode, when the medium is filled in the large hole, the interaction area between the light wave and the filled medium can be kept at the micron level, while The low-loss transmission characteristics of the optical fiber ensure the effective interaction distance, which can significantly enhance the intera...

AI Technical Summary

Problems solved by technology

However, since the core of the hollow-core photonic crystal fiber is only a few microns, the gas filling process belongs to the problem of micro-pipe flow, which makes it difficult to determine the gas pressure in the cavity and its distribution, especially when the length of the hollow-core photonic crystal fiber used is When it is too long, it is impossible to judge its internal pressure, which makes it difficult to quantitatively study the nonlinear interaction between gaseous media and light waves

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