WO2009047782A3 - Optical fiber having high sbs threshold as well as minimized marcobending loss - Google Patents

Optical fiber having high sbs threshold as well as minimized marcobending loss Download PDF

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Publication number
WO2009047782A3
WO2009047782A3 PCT/IN2008/000352 IN2008000352W WO2009047782A3 WO 2009047782 A3 WO2009047782 A3 WO 2009047782A3 IN 2008000352 W IN2008000352 W IN 2008000352W WO 2009047782 A3 WO2009047782 A3 WO 2009047782A3
Authority
WO
WIPO (PCT)
Prior art keywords
region
clad
core
optical fiber
core region
Prior art date
Application number
PCT/IN2008/000352
Other languages
French (fr)
Other versions
WO2009047782A2 (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 WO2009047782A2 publication Critical patent/WO2009047782A2/en
Publication of WO2009047782A3 publication Critical patent/WO2009047782A3/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
    • G02B6/02214—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
    • 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

Abstract

An optical fiber (10) having increased Stimulated Brillouin Scattering (SBS) threshold value and reduced macro-bending loss comprises a core region and a clad region surrounding the core region. The core region is divided into three sub-core regions, namely first core region (11), second core region (12), and third core region (13), having respective relative refractive indices related by Δ 1> Δ 3> Δ 2. The clad region is divided into four sub-clad regions, namely first clad region (14), second clad region (15), third clad region (16), and fourth clad region (17), having respective relative refractive indices related by Δ 6= Δ 7> Δ 4> Δ 5. Wherein, the relative refractive indices of the first core region (11), second core region (12), third core region (13), first clad region (14), second clad region (15), third clad region (16), and fourth clad region (17) are Δ 1, A 2, Δ 3, Δ 4, Δ 5, Δ 6, Δ 7 respectively.
PCT/IN2008/000352 2007-06-05 2008-06-04 Optical fiber having high sbs threshold as well as minimized marcobending loss WO2009047782A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1061/MUM/2007 2007-06-05
IN1061MU2007 2007-06-05

Publications (2)

Publication Number Publication Date
WO2009047782A2 WO2009047782A2 (en) 2009-04-16
WO2009047782A3 true WO2009047782A3 (en) 2009-07-09

Family

ID=40549704

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2008/000352 WO2009047782A2 (en) 2007-06-05 2008-06-04 Optical fiber having high sbs threshold as well as minimized marcobending loss

Country Status (1)

Country Link
WO (1) WO2009047782A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN1182412C (en) * 2003-01-14 2004-12-29 长飞光纤光缆有限公司 High-capacity low-slope dispersion displacement sigle-mode optical fibre for transmission
CN1797048A (en) * 2004-12-27 2006-07-05 住友电气工业株式会社 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
JP2006232599A (en) * 2005-02-24 2006-09-07 Swcc Showa Cable Systems Co Ltd Stimulated brillouin scattering suppressing optical fiber
WO2007041196A1 (en) * 2005-10-03 2007-04-12 Corning Incorporated Large effective area high sbs threshold optical fiber

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN1182412C (en) * 2003-01-14 2004-12-29 长飞光纤光缆有限公司 High-capacity low-slope dispersion displacement sigle-mode optical fibre for transmission
CN1802578A (en) * 2003-05-02 2006-07-12 康宁股份有限公司 Large effective area high SBS threshold optical fiber
CN1797048A (en) * 2004-12-27 2006-07-05 住友电气工业株式会社 Optical fiber
JP2006232599A (en) * 2005-02-24 2006-09-07 Swcc Showa Cable Systems Co Ltd Stimulated brillouin scattering suppressing optical fiber
WO2007041196A1 (en) * 2005-10-03 2007-04-12 Corning Incorporated Large effective area high sbs threshold optical fiber

Also Published As

Publication number Publication date
WO2009047782A2 (en) 2009-04-16

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