US 9,176,275 B2 · Dispersion-compensating system and dispersion-compensating fiber with improved figure of merit

Abstract

A dispersion-compensating system and a dispersion-compensating fiber have an improved figure of merit and effective area. The dispersion-compensating system comprises a bulk dispersion-compensating module for providing optical-domain bulk dispersion compensation for an optical signal transmission. Additionally, the system may further comprise residual dispersion compensation, which can be performed in the electrical domain following coherent detection of both amplitude and phase of an optical signal. The dispersion-compensating fiber comprises an up-doped core region; a down-doped trench; an up-doped ring; and an outer cladding, and is configured to have a high figure of merit (FOM).

Claims13

Dependent claims

A dispersion-compensating system, comprising:

an up-doped core region;
a down-doped trench;
and up-doped ring;
and
an outer cladding,
wherein the dispersion-compensating fiber is configured to have an effective area of 90 μm2 or greater,
wherein the dispersion-compensating fiber is configured to have a high figure of merit, wherein the figure of merit (FOM) is defined by the equation
F
⁢
⁢
O
⁢
⁢
M
=
-
D
DCF
α
DCF
,
wherein DDCF is the dispersion coefficient, and αDCF is the attenuation coefficient of the dispersion-compensating fiber, and
wherein the figure of merit is greater than 2000 ps/(nm·dB).

20 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/816,301Filed 6 Sep 2011 · us provisional application

Priority

3 Sep 2010

Published

US 2013/0223851 A129 Aug 2013

Granted

3 Nov 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04B 10/2507
Arrangements specific to fibre transmission: for the reduction or elimination of distortion or dispersion
G02B 6/02019
Effective area greater than 60 square microns in the C band, i.e. 1530-1565 nm: effective area greater than 90 square microns in the C band, i.e.…
G02B 6/02261
Negative dispersion fibres at 1550 nm: dispersion compensating fibres, i.e. for compensating positive dispersion of other fibres
G02B 6/03644
Having 3 layers only: arranged - + -

Dispersion-compensating system and dispersion-compensating fiber with improved figure of merit

Life of this patent

Dispersion-compensating system and dispersion-compensating fiber with improved figure of merit

Life of this patent

Abstract

Claims13