Method for selective filling of photonic crystal optical fiber

Abstract

Provided is a method for selective filling of a photonic crystal optical fiber. Through micro control, a polystyrene microsphere is located above an air hole of the photonic crystal optical fiber at a specific position, the polystyrene microsphere is melt at high temperature to plug the air hole of the photonic crystal optical fiber, then under the capillary action, wax oil in a molten state enters other open air holes of the photonic crystal optical fiber, a liquid level is higher than the position where the plugging molten microsphere is located, then a section, immersed by the wax oil, of the photonic crystal optical fiber is reserved, and finally the photonic crystal optical fiber is obtained, wherein the air hole at the specific position of one end of the photonic crystal optical fiber is open and other air holes are sealed. The method is simple and flexible to operate, equipment is simple and practical, and meanwhile multiple air holes at any position can be selectively filled. The method is suitable for the situation that diameters of the air holes of the photonic crystal optical fiber are little in difference, and plays an important role in a large quantity of materials with a selective filling function in the photonic crystal optical fiber.

Description

Technical field [0001] The invention relates to a technical method for selectively filling a photonic crystal fiber. The method can realize the opening or closing of any number of air holes in the photonic crystal fiber, and plays a key role in selectively filling a wide range of functional materials in the photonic crystal fiber. Background technique [0002] Photonic crystal fiber (PCF), also known as microstructure fiber (MOF) or holey fiber (Holey fiber), is different from ordinary optical fiber in that the core and cladding of the PCF section are distributed with periodically arranged micro-scale air holes, and along the extend indefinitely along the axis. This makes them exhibit properties superior to ordinary optical fibers, such as no cut-off single-mode characteristics, high birefringence characteristics, exotic multi-core and multi-mode coupling characteristics, etc. And PCF has a flexible design structure and special conduction mechanism, which provides space and...

AI Technical Summary

Problems solved by technology

However, these methods are complicated, the equipment used is expensive, and the loss of optical fibers is relatively large.

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