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

High non-linearity photon crystal optical fiber with color dispersion plainness characteristic in long wavelength

A photonic crystal fiber and high nonlinear technology, which is applied in the field of optical fiber communication and optical signal processing, can solve the problems of restricting the use of high nonlinear photonic crystal fiber, and achieve the effect of wavelength tunable dispersion flat and low dispersion slope

Active Publication Date: 2008-02-06
YANGTZE OPTICAL FIBRE & CABLE CO LTD
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the total reflection light-guiding high nonlinear photonic crystal fiber with a simple pure silicon core and a high duty ratio cladding structure has a zero dispersion below 1000nm. Dispersion coefficient, which limits the use of highly nonlinear photonic crystal fibers at long wavelengths

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
  • High non-linearity photon crystal optical fiber with color dispersion plainness characteristic in long wavelength
  • High non-linearity photon crystal optical fiber with color dispersion plainness characteristic in long wavelength
  • High non-linearity photon crystal optical fiber with color dispersion plainness characteristic in long wavelength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The working principle of the present invention and various embodiments of this type of optical fiber will be described in detail below with reference to the accompanying drawings.

[0027] In order to study the light-guiding properties of highly nonlinear photonic fibers, we have adopted the Full-vectorial Plane-wave method (PWM) and the Finite-difference Method (Finite-difference Method) using the ideal matching layer absorption boundary (PML) respectively. , FDM) [S. Guo et al. Opt. Express 12 (2004) p.3341] to calculate the effective refractive index and dispersion distribution characteristics of the optical fiber with the structural characteristics.

[0028] As an embodiment one, Fig. 1 has listed a kind of typical high nonlinear photonic crystal fiber with low dispersion coefficient and flat characteristic of dispersion in the C-band, which includes the structural features of core layer and cladding layer: pure silica fiber core layer strip There is a defect struct...

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

PropertyMeasurementUnit
Dispersion slopeaaaaaaaaaa
Nonlinear coefficientaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a nonlinear fiber, in particular to a photonic crystal fiber with high nonlinearity and flattened dispersion at long wavelength, and pertains to the field of fiber communication and optical signal processing. The structure of the present invention is characterized in that a low duty-cycle hole defect structure is provided in the pure-quartz fiber core zone, and the fiber cladding comprises a high duty-cycle hole periodic structure. The nonlinear photonic crystal fiber in the present invention, compared with the simple total-reflection nonlinear photonic crystal fiber, overcomes the bottleneck that zero dispersion can only be adjusted at short wavelength, and realizes that zero dispersion can be adjustable in a wide range of spectrum and the property of flattened dispersion is provided at long wavelength. The invention can be widely applied to optical devices in the field of communication-wavelength photonic technology, such as the multi-wavelength light source for long wavelength communication, the quantum information source and so on.

Description

technical field [0001] The invention relates to a nonlinear optical fiber, in particular to a highly nonlinear photonic crystal optical fiber with dispersion flat characteristics at long wavelengths, which belongs to the field of optical fiber communication and optical signal processing. Background technique [0002] Photonic Crystal Fiber (Photonic Crystal Fiber), also known as microstructure fiber or holey fiber, is a new type of fiber that has attracted widespread attention in recent years [J.C.Knight, et al.Opt.Lett., 21(1996) p.1547. ; Errata, Opt.Lett.22(1997) p.484], its cross-section has a more complex refractive index distribution, usually the cladding region of this type of fiber contains air holes that run through the entire fiber in different arrangements, these The size of the hole is roughly on the same order of magnitude as the wavelength of the fiber, and the light wave can be confined to propagate in its core region. According to different light guiding mec...

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): G02B6/02G02F1/35
Inventor 童维军韦会峰汪洪海罗杰
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com