NZ336194A - Optical fibre with non-linearity coefficient < 2 /W Km and graded refractive index - Google Patents

Optical fibre with non-linearity coefficient < 2 /W Km and graded refractive index

Info

Publication number
NZ336194A
NZ336194A NZ336194A NZ33619499A NZ336194A NZ 336194 A NZ336194 A NZ 336194A NZ 336194 A NZ336194 A NZ 336194A NZ 33619499 A NZ33619499 A NZ 33619499A NZ 336194 A NZ336194 A NZ 336194A
Authority
NZ
New Zealand
Prior art keywords
refractive index
layer
less
linearity coefficient
index difference
Prior art date
Application number
NZ336194A
Inventor
Bartolomeo Italo Tirloni
Francesco Gabriele Sartori
Davide Sarchi
Giacomo Stefano Roba
Original Assignee
Pirelli Cavi Spa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pirelli Cavi Spa filed Critical Pirelli Cavi Spa
Priority to NZ506672A priority Critical patent/NZ506672A/en
Publication of NZ336194A publication Critical patent/NZ336194A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02004—Optical fibres with cladding with or without a coating characterised by the core effective area or mode field radius
    • G02B6/02009—Large effective area or mode field radius, e.g. to reduce nonlinear effects in single mode fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02214—Optical fibres with cladding with or without a coating tailored to obtain the desired dispersion, e.g. dispersion shifted, dispersion flattened
    • G02B6/02219—Characterised by the wavelength dispersion properties in the silica low loss window around 1550 nm, i.e. S, C, L and U bands from 1460-1675 nm
    • G02B6/02228—Dispersion flattened fibres, i.e. having a low dispersion variation over an extended wavelength range
    • G02B6/02238—Low dispersion slope fibres
    • G02B6/02242—Low dispersion slope fibres having a dispersion slope <0.06 ps/km/nm2
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
    • G02B6/03644—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - + -
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
    • G02B6/0281—Graded index region forming part of the central core segment, e.g. alpha profile, triangular, trapezoidal core

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Glass Compositions (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

An optical transmission fibre with a high effective area and low non-linearity coefficient ã has glass inner core 12 with a maximum refractive index difference Än1, a profile á and a radius r1. Surrounding the inner core, is a glass layer 14 with a maximum refractive index difference Än2 less than Än1, and with an outer radius r2. A second glass layer 16 surrounds layer 14, layer 16 having a maximum refractive index difference Än3 less than Än1 and with a width w. A low loss cladding 18 surrounds the layer 16. The absolute value of the refractive index difference Än2 is less than 10% of Än3, and the non-linearity coefficient ã is less than 2 W-1 km-1.
NZ336194A 1998-06-19 1999-06-10 Optical fibre with non-linearity coefficient < 2 /W Km and graded refractive index NZ336194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NZ506672A NZ506672A (en) 1998-06-19 1999-06-10 Optical fibre with low dopant region between centre and outer part of fibre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98111292 1998-06-19

Publications (1)

Publication Number Publication Date
NZ336194A true NZ336194A (en) 2000-10-27

Family

ID=8232144

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ336194A NZ336194A (en) 1998-06-19 1999-06-10 Optical fibre with non-linearity coefficient < 2 /W Km and graded refractive index

Country Status (10)

Country Link
JP (1) JP2000162461A (en)
KR (1) KR100622615B1 (en)
CN (1) CN1144072C (en)
AR (1) AR020597A1 (en)
AT (1) ATE446524T1 (en)
AU (1) AU768485B2 (en)
BR (1) BR9902386B1 (en)
CA (1) CA2274361C (en)
DE (1) DE69941552D1 (en)
NZ (1) NZ336194A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6664327B2 (en) * 2014-01-31 2020-03-13 オーエフエス ファイテル，エルエルシー Design and manufacture of multimode optical fiber
CN111983871B (en) * 2020-09-03 2022-05-20 山西大学 All-optical amplification method of optical soliton pulse train
US11592612B2 (en) * 2020-12-30 2023-02-28 Lumentum Operations Llc In-fiber offset to annulus converter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60257408A (en) * 1984-06-04 1985-12-19 Shin Etsu Chem Co Ltd Optical fiber and its production
US4889404A (en) * 1987-09-09 1989-12-26 Corning Incorporated Asymmetrical bidirectional telecommunication system
US5835655A (en) * 1995-01-26 1998-11-10 Corning Incorporated Large effective area waveguide fiber
AU715435B2 (en) * 1996-02-12 2000-02-03 Corning Incorporated Single mode optical waveguide having large effective area
EP0798578A1 (en) * 1996-03-22 1997-10-01 Corning Incorporated Dispersion shifted optical waveguide fiber

Also Published As

Publication number Publication date
JP2000162461A (en) 2000-06-16
KR20000006257A (en) 2000-01-25
AR020597A1 (en) 2002-05-22
BR9902386A (en) 2000-01-18
CN1243257A (en) 2000-02-02
KR100622615B1 (en) 2006-09-11
CA2274361A1 (en) 1999-12-19
CN1144072C (en) 2004-03-31
BR9902386B1 (en) 2014-08-26
CA2274361C (en) 2008-08-05
DE69941552D1 (en) 2009-12-03
AU3575899A (en) 2000-01-06
AU768485B2 (en) 2003-12-11
ATE446524T1 (en) 2009-11-15

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