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A negative curvature of the empty core with high double refraction and low loss of photon crystal optical fiber

A technology of photonic crystal fiber and high birefringence, which is applied in the direction of bundle optical fiber, light guide, optics, etc., can solve the problems of not studying the optical characteristics of HCF, and achieve excellent optical performance, simple structure design, and large adjustable range.

Active Publication Date: 2022-08-09
UNIV OF JINAN
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Problems solved by technology

However, the optical properties of HCF in the mid-infrared band, especially the birefringence and loss-limited properties, have not been studied so far.

Method used

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  • A negative curvature of the empty core with high double refraction and low loss of photon crystal optical fiber
  • A negative curvature of the empty core with high double refraction and low loss of photon crystal optical fiber
  • A negative curvature of the empty core with high double refraction and low loss of photon crystal optical fiber

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0019] like figure 1 As shown, a hollow-core negative-curvature photonic crystal optical fiber with high birefringence and low loss includes a fiber tube body with a circular cross-section and a hollow core inside, a tube wall fiber cladding 2 of the fiber tube body, and a fiber tube body. Two large capillaries 3 with a circular cross section and inscribed with the optical fiber cladding 2 are arranged symmetrically in the hollow core of the left and right sides. Each of the same small capillaries 1 with a circular cross section and inscribed with the fiber cladding 2 , and a medium capillary 4 with a circular cross section and inscribed with the large capillary 3 is provided in each of the two large capillaries 3 , the tangent point of the medium capillary 4 and the large capillary 3, the tangent point of the large capillary 3 and the fiber cladding 2, and the cente...

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Abstract

A negative curvature of the empty core with high dual -refractive low loss, a photonic crystal fiber, including the cross -section of the fiber tube with a circular and internal empty core, the tube wall of the fiber tube includes two layers of ring structure, the fiber tube body body, the fiber tube bodyThere are two large hair tubes that are cut into the fiber -fiber expansion in the left and right symmetry in the empty core, and the two large fiber tubes are set up between the upper and lower fiber tubes below and below.In the small capillary tube, both large capillary tubes are set in a medium -capped tube that is cut into the large capillary tube. Small hairy tubes, medium hair thin tubes, and large hair fine tubes are symmetrical.The optical wave transmission of the cavity, fiber tube, large capillary tubes, medium capillary tubes, and small capillary tubes are made of silicon glass.This optical fiber structure is simple, and the capacity of the capillary structure can be adjusted in a large range, which is conducive to the realization of HCF industrial preparation and commercial applications.

Description

technical field [0001] The invention relates to a hollow-core negative-curvature photonic crystal fiber with high birefringence and low loss. Background technique [0002] Since the 20th century, the emergence and wide application of optical fiber technology has laid revolutionary achievements in the three fields of optical fiber communication, optical fiber laser, and optical fiber sensing. Optical fiber technology is an important cornerstone of today's industrial civilization. However, with the explosive growth of information transmission capacity and the extremely high demand for information transmission speed, the intrinsic defects (non-linearity, dispersion, photo-induced damage, UV, mid-infrared, etc.) It is becoming more and more obvious, which seriously restricts the continued development of the above-mentioned industrial fields. The emergence of photonic crystal fibers has solved this problem. The structure of photonic crystal fibers can be designed flexibly and ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/032G02B6/04
CPCG02B6/032G02B6/04
Inventor 张亚萍宋朋夏伟张东莉
Owner UNIV OF JINAN
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