Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Air-core polarization maintaining photonic crystal optical fiber

A photonic crystal fiber, polarization-maintaining technology, applied in polarized fibers, multi-core fibers, clad fibers, etc., can solve the problems of optical properties being greatly affected by temperature and increased fiber loss, and achieve polarization-maintaining performance and low loss. Transmission, the effect of low magnetic field susceptibility

Active Publication Date: 2017-06-13
CHINA ELECTRONICS TECH GRP NO 46 RES INST
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the stress rod is composed of doped quartz, its own optical properties are greatly affected by temperature, and in radiation environments such as space, the core doping composition (generally GeO 2 ) and stress rod doping composition (generally B 2 o 3 ) will form a color center under the action of radiation rays, resulting in a significant increase in the loss of the polarization-maintaining fiber, affecting the use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Air-core polarization maintaining photonic crystal optical fiber
  • Air-core polarization maintaining photonic crystal optical fiber
  • Air-core polarization maintaining photonic crystal optical fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and do not limit the present invention.

[0015] Such as figure 1 , figure 2 with image 3 As shown, a hollow-core polarization-maintaining photonic crystal fiber includes a glass tube 4, a microcapillary 3, a low-index core I1, and a low-index core II2.

[0016] Along the inner wall of the glass tube 4, several microcapillary tubes 3 are arranged to form the inner cladding area of ​​the pores. The contact part of the peripheral part of the inner cladding area of ​​the pores and the inner wall of the glass tube 4 is fixed on the inner wall of the glass tube 4 by welding, and the inner pores The middle part of the layer region is the low refractive index core I1, that is, 19 microcapillaries are drawn out as the core region, and both sides of the core region are l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an air-core polarization maintaining photonic crystal optical fiber. Along a circle of the inner wall of a glass tube, a plurality of micro capillaries are arranged to form a pore inner covering layer area, the peripheral part of the pore inner covering layer area and the contact part of the inner wall of the glass tube are fixed on the inner wall of the glass tube in a welding mode, the middle part of the pore inner covering layer area is a low refractive index fiber core I, namely a fiber core area, and the two sides of the fiber core area are low refractive index fiber cores II, namely seven-cell pores; the two sides in the fiber core area are gap areas which are enveloped by symmetrical fiber cores; or the upper side and the lower side in the fiber core area are symmetrically provided with convex areas which are enveloped by two fiber cores; or the two sides in the fiber core area are the gap areas which are enveloped by the fiber cores, and the upper side and the lower side in the fiber core area are symmetrically provided with the convex areas which are enveloped by the two fiber cores. The polarization maintaining performance, low-loss transmission and single-model advantages can be achieved, and the air-core polarization maintaining photonic crystal optical fiber has the advantages of being high in temperature stability, low in non-linear coefficient, low in magnetic field sensitivity, good in irradiation resistance and the like.

Description

Technical field [0001] The invention belongs to the field of special optical fibers, and particularly relates to a hollow-core polarization-maintaining photonic crystal fiber. Background technique [0002] Polarization maintaining fiber is widely used in fiber optic gyroscopes, fiber optic hydrophones, and fiber current transformers. It is a special fiber with important application value. The traditional polarization maintaining fiber is generally composed of stress bars on both sides of the core. There are many types of refraction, such as panda type and bow tie type. However, because the stress rod is composed of doped quartz, its own optical properties are greatly affected by temperature, and in a radiation environment such as space, the core doping component (generally GeO 2 ) And stress bar doped components (generally B 2 O 3 ) Will form a color center under the action of radiant rays, resulting in a significant increase in the loss of the polarization-maintaining fiber and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02B6/02G02B6/024G02B6/10
CPCG02B6/02042G02B6/02338G02B6/024G02B6/105
Inventor 张慧佳庞璐张佳琦韩志辉梁小红宁鼎衣永青潘蓉王东波
Owner CHINA ELECTRONICS TECH GRP NO 46 RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products