Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical fibre with dispersion compensation within S wave band

A technology of dispersion compensation and optical fiber, which is applied in the direction of required dispersion optical fiber, multi-layer core/clad optical fiber, cladding optical fiber, etc., and can solve problems such as inappropriate

Inactive Publication Date: 2010-05-05
ALCATEL LUCENT SAS
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Patent application EP 1219986 discloses the use of a fiber with dispersion compensation in the S-band, but the examples described with two or three segments have a ratio between attenuation at 1520nm and 1500nm greater than 2, or a dispersion to dispersion slope ratio, rendering them unsuitable for the purposes of the present invention

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
  • Optical fibre with dispersion compensation within S wave band
  • Optical fibre with dispersion compensation within S wave band
  • Optical fibre with dispersion compensation within S wave band

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] figure 1 An example of a dispersion compensating optical fiber of a type having four segments according to the present invention is schematically shown. The first segment, or the central segment as it is otherwise known, has a maximum refractive index difference Δn1 relative to the constant refractive index of the cladding and an outer radius r1. The maximum refractive index difference Δn1 is positive. The refractive index is preferably constant between zero radius and radius r1. The second section, or the first buried section as it is otherwise known, has a maximum refractive index difference Δn2 relative to the constant refractive index of the cladding and an outer radius r2. The maximum refractive index difference Δn2 is negative. The refractive index is preferably constant between the radius r1 and the radius r2. The third section or the annular section as it is otherwise known has a maximum refractive index difference Δn3 with respect to the constant refractiv...

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
Outer radiusaaaaaaaaaa
Outer radiusaaaaaaaaaa
Outer radiusaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of optical fibers for wavelength division multiplex transmission networks. It provides an optical fiber with chromatic dispersion compensation in the S band from 1 460 nm to 1 530 nm having a negative chromatic dispersion at the wavelength of 1 495 nm and at least three core slices, preferably at least four core slices. The single core slice or the first core slice is very deeply buried and preferably has as at the wavelength of 1 495 nm a chromatic dispersion to dispersion slope ratio whose absolute value is from 68 nm to 158 nm.

Description

[0001] related application [0002] This application is based on French patent application No. 0216616 filed on December 24, 2002, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The invention relates to the field of optical fibers for use in wavelength division multiplexing transmission networks. Background technique [0004] Increasing the information bit rate for this type of network forces dispersion and dispersion slope compensation for spectral bands other than the C-band. The S-band extends approximately from 1460nm to 1530nm. The C-band extends approximately from 1530nm to 1565nm. The L-band extends approximately from 1565nm to 1625nm. The U-band extends approximately from 1625nm to 1675nm. The most widely used band is the C-band. The present invention relates to optical fibers with dispersion compensation in the S-band. [0005] In the prior art, it is known to combine certain types of dispersion-shifted f...

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): G02B6/036
CPCG02B6/0228G02B6/03666G02B6/02004G02B6/02261
Inventor 路易-阿纳·德蒙莫里永卢多维克·弗勒里皮埃尔·西亚尔弗洛朗·博蒙马克西姆·戈尔利耶德尼·莫兰帕斯卡勒·努希
Owner ALCATEL LUCENT SAS