WO2009050728A3 - Optical fiber having high sbs threshold and reduced macrobending loss - Google Patents

Optical fiber having high sbs threshold and reduced macrobending loss Download PDF

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Publication number
WO2009050728A3
WO2009050728A3 PCT/IN2008/000351 IN2008000351W WO2009050728A3 WO 2009050728 A3 WO2009050728 A3 WO 2009050728A3 IN 2008000351 W IN2008000351 W IN 2008000351W WO 2009050728 A3 WO2009050728 A3 WO 2009050728A3
Authority
WO
WIPO (PCT)
Prior art keywords
region
clad
core
core region
optical fiber
Prior art date
Application number
PCT/IN2008/000351
Other languages
French (fr)
Other versions
WO2009050728A2 (en
Inventor
Saurav Dutta
Reena Harnal
Hrudaya Ranjan Sahu
Pankaj Khanna
Original Assignee
Sterlite Technologies Ltd
Saurav Dutta
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 Sterlite Technologies Ltd, Saurav Dutta filed Critical Sterlite Technologies Ltd
Publication of WO2009050728A2 publication Critical patent/WO2009050728A2/en
Publication of WO2009050728A3 publication Critical patent/WO2009050728A3/en

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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
    • G02B6/036—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
    • G02B6/03688—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 5 or more layers
    • 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
    • G02B6/02266—Positive dispersion fibres at 1550 nm

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

An optical fiber (100) having increased Stimulated Brillouin Scattering (SBS) threshold value and reduced macro-bendin loss comprises a core region and a clad region surrounding the core region. The core region is divided into four sub-core regions, namely first core region (102), second core region (104), third core region (106), and fourth core region (108), with respective relative refractive indices related by Δ1, > Δ 2> Δ 3> Δ 4. The clad region is divided into four sub-clad regions, namely first cla region (110), second clad region (112), third clad region (114), and fourth clad region (116), with respective relative refractive indices related by Δ 7= Δ 8> Δ 5> Δ 6, wherein, the relative refractive indices of the first core region (102), second core region (104), third core region (106), fourth core region (108), first clad region (110), second clad region (112), third clad region (114), and fourth clad region (116) are Δ 1, A 2, Δ 3, Δ 4, Δ 5, Δ 6, Δ 7, and Δ 8, respectively.
PCT/IN2008/000351 2007-06-05 2008-06-04 Optical fiber having high sbs threshold and reduced macrobending loss WO2009050728A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1062MU2007 2007-06-05
IN1062/MUM/2007 2007-06-05

Publications (2)

Publication Number Publication Date
WO2009050728A2 WO2009050728A2 (en) 2009-04-23
WO2009050728A3 true WO2009050728A3 (en) 2009-07-09

Family

ID=40567901

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2008/000351 WO2009050728A2 (en) 2007-06-05 2008-06-04 Optical fiber having high sbs threshold and reduced macrobending loss

Country Status (1)

Country Link
WO (1) WO2009050728A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09311231A (en) * 1996-05-16 1997-12-02 Furukawa Electric Co Ltd:The Dispersion shift optical fiber
JPH10228040A (en) * 1997-02-13 1998-08-25 Furukawa Electric Co Ltd:The Optical fiber for light source
CN1265199A (en) * 1997-07-15 2000-08-30 康宁股份有限公司 Suppression of stimulated brillouin scattering in optical fiber
US6959135B1 (en) * 2004-12-21 2005-10-25 Corning Incorporated SBS suppressed nonlinear optical fiber
US20060039664A1 (en) * 2004-04-05 2006-02-23 Bickham Scott R Large effective area high sbs threshold optical fiber
CN1802578A (en) * 2003-05-02 2006-07-12 康宁股份有限公司 Large effective area high SBS threshold optical fiber
CN1932562A (en) * 2005-09-09 2007-03-21 德雷卡通信技术公司 Optical fiber with reduced stimulated brillouin scattering

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09311231A (en) * 1996-05-16 1997-12-02 Furukawa Electric Co Ltd:The Dispersion shift optical fiber
JPH10228040A (en) * 1997-02-13 1998-08-25 Furukawa Electric Co Ltd:The Optical fiber for light source
CN1265199A (en) * 1997-07-15 2000-08-30 康宁股份有限公司 Suppression of stimulated brillouin scattering in optical fiber
CN1802578A (en) * 2003-05-02 2006-07-12 康宁股份有限公司 Large effective area high SBS threshold optical fiber
US20060039664A1 (en) * 2004-04-05 2006-02-23 Bickham Scott R Large effective area high sbs threshold optical fiber
US6959135B1 (en) * 2004-12-21 2005-10-25 Corning Incorporated SBS suppressed nonlinear optical fiber
CN1932562A (en) * 2005-09-09 2007-03-21 德雷卡通信技术公司 Optical fiber with reduced stimulated brillouin scattering

Also Published As

Publication number Publication date
WO2009050728A2 (en) 2009-04-23

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