High nonlinear photonic crystal fiber

A photonic crystal fiber, high nonlinear technology, applied in the direction of cladding fiber, optical waveguide light guide, light guide, etc., can solve the problems of related products that have no practical effect, and achieve the effect of avoiding fiber core deformation and good dispersion control.

Active Publication Date: 2016-05-18
FENGHUO COMM SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the application fields of optical communication and optical sensing, there is a huge potential demand for highly nonlinear photonic crystal fibers for nonlinear effects. product

Method used

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  • High nonlinear photonic crystal fiber
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The cladding diameter of the highly nonlinear photonic crystal fiber is 80 μm, the diameter of the core 10 is 1.00 μm, the inner diameter of the air holes in the ring 21 of the first layer is 0.4 μm, the distance between adjacent air holes is 1 μm, and the duty cycle 40%.

[0033] The inner diameter of the air holes in each circle of the second layer of rings 22, the fourth layer of rings 24, the sixth layer of rings 26 and the seventh layer of rings 27 is 2.50 μm, and the distance between adjacent air holes is 3.00 μm. The duty cycle is 83%.

[0034] The inner diameter of the air holes in the third ring 23 and the fifth ring 25 is 0.9 μm, the distance between adjacent air holes in each ring is 3.00 μm, and the duty cycle is 30%.

[0035] When the cladding diameter of the quartz highly nonlinear photonic crystal fiber of the present invention is 80 μm, the minimum diameter of the core 1010 is 1.0 μm, the mode field diameter can reach 0.7 μm, and the nonlinear coefficie...

Embodiment 2

[0037] The cladding diameter of the highly nonlinear photonic crystal fiber is 125 μm, the diameter of the core 10 is 1.56 μm, the inner diameter of the air holes in the ring 21 of the first layer is 1.00 μm, and the distance between adjacent air holes is 1.56 μm. The ratio is 64%.

[0038] The inner diameter of the air holes in each circle of the second layer of rings 22, the fourth layer of rings 24, the sixth layer of rings 26 and the seventh layer of rings 27 is 3.30 μm, and the distance between adjacent air holes is 4.69 μm. The duty cycle is 70%.

[0039] The inner diameter of the air holes in the third ring 23 and the fifth ring 25 is 1.50 μm, the distance between adjacent air holes in each ring is 4.69 μm, the duty cycle is 32%, and the high nonlinear photon The nonlinear coefficient of crystal fiber 800nm ​​is 192W -1 km -1 , the nonlinear coefficient of highly nonlinear photonic crystal fiber at 1310nm is 117W -1 km -1 , the nonlinear coefficient of highly nonli...

Embodiment 3

[0041] The cladding diameter of the highly nonlinear photonic crystal fiber is 140 μm, the diameter of the core 10 is 1.75 μm, the inner diameter of the air holes in the ring 21 of the first layer is 1.23 μm, and the distance between adjacent air holes is 1.75 μm. The ratio is 70%;

[0042] The inner diameter of the air holes in each circle of the second layer of rings 22, the fourth layer of rings 24, the sixth layer of rings 26 and the seventh layer of rings 27 is 4.20 μm, and the distance between adjacent air holes is 5.25 μm. The duty cycle is 80%;

[0043] The inner diameter of the air holes in the third ring 23 and the fifth ring 25 is 2.50 μm, the distance between adjacent air holes in each ring is 5.25 μm, the duty cycle is 48%, and the high nonlinear photon The nonlinear coefficient of crystal fiber at 800nm ​​is 141W -1 km -1 , the nonlinear coefficient of highly nonlinear photonic crystal fiber at 1310nm is 86W -1 km -1 , the nonlinear coefficient of highly non...

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Abstract

The invention discloses a high nonlinear photonic crystal fiber which relates to the field of a photonic crystal waveguide structure. A micropore area is internally provided with air pores which are distributed in the axial direction of the fiber and penetrate through the whole fiber. The plurality of air pores are arranged around the axis of the fiber core. At least six layers of annular rings are arranged around the fiber core, namely a first layer of annular ring, a second layer of annular ring, a third layer of annular ring, a fourth layer of annular ring, a fifth layer of annular ring and a sixth layer of annular ring from inside to outside. Furthermore the cross section of each ring of annular ring is of a right hexagon. Each layer of annular ring is obtained through arranging a plurality of air pores. The internal diameter of the air pores of the first layer of annular ring, the second layer of annular ring, the third layer of annular ring, the fourth layer of annular ring, the fifth layer of annular ring and the sixth layer of annular ring are D1, D2, D3, D4, D5 and D6, and furthermore D1<D3=D5<D2=D4=D6. The high nonlinear photonic crystal fiber has a characteristic of certain dispersion flatness, and furthermore has advantages of forming good nonlinear transmission in a certain range and supplying better support for high nonlinear application.

Description

technical field [0001] The invention relates to the field of photonic crystal waveguide structures, in particular to a highly nonlinear photonic crystal fiber. Background technique [0002] Photonic crystal fiber is also called holey fiber or microstructure fiber. With the in-depth development of photonic technology, the nonlinear effect, which was considered unfavorable to optical fiber communication in the past, is now more and more paid attention to by people. Nonlinear effects such as four-wave mixing, stimulated Raman scattering, and stimulated Brillouin scattering in traditional optical fibers can play an important role in the development of nonlinear optical devices, thereby contributing to the development of all-optical communication. Traditional optical fibers are limited by the manufacturing process and structure, and the characteristics of nonlinear effects are difficult to make good use of. Photonic crystal fiber can effectively control and adjust the nonlinear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/02
CPCG02B6/02342G02B6/02347G02B6/02366
Inventor 罗文勇刘志坚杜城李伟柯一礼孔明
Owner FENGHUO COMM SCI & TECH CO LTD
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