WO2004095655B1 - Reduced clad diameter rare earth doped fiber coils and optical amplifiers utiliying such coils - Google Patents

Reduced clad diameter rare earth doped fiber coils and optical amplifiers utiliying such coils

Info

Publication number
WO2004095655B1
WO2004095655B1 PCT/US2004/008097 US2004008097W WO2004095655B1 WO 2004095655 B1 WO2004095655 B1 WO 2004095655B1 US 2004008097 W US2004008097 W US 2004008097W WO 2004095655 B1 WO2004095655 B1 WO 2004095655B1
Authority
WO
WIPO (PCT)
Prior art keywords
earth doped
rare earth
fiber
coils
clad diameter
Prior art date
Application number
PCT/US2004/008097
Other languages
French (fr)
Other versions
WO2004095655A1 (en
Inventor
William A Wood
Original Assignee
Corning Inc
William A Wood
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
Priority claimed from US10/755,009 external-priority patent/US6978078B2/en
Application filed by Corning Inc, William A Wood filed Critical Corning Inc
Priority to JP2006507257A priority Critical patent/JP2006522366A/en
Priority to EP04759627A priority patent/EP1611650A1/en
Publication of WO2004095655A1 publication Critical patent/WO2004095655A1/en
Publication of WO2004095655B1 publication Critical patent/WO2004095655B1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06704—Housings; Packages

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

According to the present invention, a rare earth doped fiber coil comprises a rare doped optical fiber having a rare-earth doped core surrounded by a cladding. The outer clad diameter is less than 100μm. The rare earth doped optical fiber has a length of 10 m to 50m and is coiled with abend radius of less than 40mm.

Claims

AMENDED CLAIMS [received by the International Bureau on 01 October 2004 (01.10.04); original claims 1-16 replaced by amended claims 1-10 (2 pages)]What is claimed is:
1. A rare earth doped fiber coil, said rare earth doped fiber coil comprising: a rare earth doped optical fiber having a rare-earth doped core surrounded by a cladding, said fiber having an outer clad diameter of less than 100 μm, said rare earth doped optical fiber having a length of 10 m to 50 m and being coiled with a bend radius of less than 40 mm.
2. The rare earth doped fiber coil according to claim 1, wherein said outer clad diameter of said fiber is in the range of 72 μm to 90 μm.
3. The rare earth doped fiber coil according to any of the preceding claims, wherein said rare earth doped optical fiber is an Er doped optical fiber.
4. The rare earth doped fiber coil according to any of the preceding claims, wherein said bend radius is between 8mm and 35mm
5. The rare earth doped fiber coil according to claim 4, wherein said bend radius is between 10mm and 15mm.
6. An optical amplifier comprising: a length of rare earth doped amplifying fiber, said amplifying fiber having a rare-earth doped core surrounded by a cladding, said fiber having an outer clad diameter of less than lOOμm, said rare earth doped optical fiber having a length of 10 m to 50m and being coiled with a bend radius of less than 40mm.
7. The optical amplifier according to claim 6, wherein said rare earth doped optical fiber is an Er doped optical fiber.
8. The optical amplifier according to claim 6 or 7, or the rare earth doped fiber coil according to claims 1-544, wherein said bend radius is between 8mm and 20mm.
9. The optical amplifier according to claim 7, 8 or 9 or the optical fiber according to claim 1, wherein said outer clad diameter is between 70μm and 95μm.
10. The optical amplifier according to claim 9 wherein said outer clad diameter of said fiber is between 75μm and 85μm.
PCT/US2004/008097 2003-04-01 2004-03-17 Reduced clad diameter rare earth doped fiber coils and optical amplifiers utiliying such coils WO2004095655A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006507257A JP2006522366A (en) 2003-04-01 2004-03-17 Rare earth doped fiber coil with reduced cladding diameter and optical amplifier using the same
EP04759627A EP1611650A1 (en) 2003-04-01 2004-03-17 Reduced clad diameter rare earth doped fiber coils and optical amplifiers utiliying such coils

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US45984203P 2003-04-01 2003-04-01
US60/459,842 2003-04-01
US10/755,009 US6978078B2 (en) 2004-01-08 2004-01-08 Reduced clad diameter rare earth doped fiber coils and optical amplifiers utilizing such coils
US10/755,009 2004-01-08

Publications (2)

Publication Number Publication Date
WO2004095655A1 WO2004095655A1 (en) 2004-11-04
WO2004095655B1 true WO2004095655B1 (en) 2005-01-13

Family

ID=33313393

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/008097 WO2004095655A1 (en) 2003-04-01 2004-03-17 Reduced clad diameter rare earth doped fiber coils and optical amplifiers utiliying such coils

Country Status (3)

Country Link
EP (1) EP1611650A1 (en)
JP (1) JP2006522366A (en)
WO (1) WO2004095655A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6978078B2 (en) * 2004-01-08 2005-12-20 Corning Incorporated Reduced clad diameter rare earth doped fiber coils and optical amplifiers utilizing such coils

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6348504A (en) * 1986-08-19 1988-03-01 Nippon Telegr & Teleph Corp <Ntt> Fiber coil type polarization eliminator
IT1237980B (en) * 1990-02-12 1993-06-19 Pirelli Cavi Spa CURVED SINGLE-MODE ACTIVE FIBER OPTICAL AMPLIFIER
US5185749A (en) * 1990-09-18 1993-02-09 The Board Of Trustee Of The Leland Stanford Junior University Large signal three-level superfluorescent fiber sources
DE69424606T2 (en) * 1993-02-25 2001-01-25 Fujikura Ltd., Tokio/Tokyo OPTICAL FIBER POLARIZING, PRODUCTION METHOD THEREFOR, CONNECTING METHOD FOR THIS, OPTICAL AMPLIFIER, LASEROSCILLATOR AND POLARIZATION OPTICAL FIBER COUPLER
JPH0854546A (en) * 1994-08-10 1996-02-27 Fujikura Ltd Optical fiber having small diameter
JPH10115727A (en) * 1996-08-20 1998-05-06 Furukawa Electric Co Ltd:The Dispersion compensating optical fiber
JP3868573B2 (en) * 1997-03-11 2007-01-17 株式会社フジクラ Manufacturing method of optical fiber for parts
WO1999050843A1 (en) * 1998-03-30 1999-10-07 Seagate Technology, Llc. Optical data storage system with means for reducing noise from spurious reflections
US6434295B1 (en) * 1999-01-14 2002-08-13 Jds Uniphase Corporation Side coupled pumping of double clad fiber gain media
US6192179B1 (en) * 1999-01-25 2001-02-20 Corning Incorporated Distributed resonant ring fiber filter
JP2000315981A (en) * 1999-04-28 2000-11-14 Fujikura Ltd Method for compensating polarization mode dispersion of optical fiber and optical amplifier module
US6496301B1 (en) * 2000-03-10 2002-12-17 The United States Of America As Represented By The Secretary Of The Navy Helical fiber amplifier
US6393923B1 (en) * 2001-04-30 2002-05-28 The United States Of America As Represented By The Secretary Of The Army Dynamic bendloss measuring device
WO2002101889A2 (en) * 2001-06-12 2002-12-19 Nufern Compression-tunable fiber laser and compression-resistant optical fiber for lasers
US20030011876A1 (en) * 2001-07-12 2003-01-16 Fidric Bernard G. Apparatus for multiple path interference (MPI) mitigation and method therefore
US6819846B2 (en) * 2001-08-02 2004-11-16 Corning Incorporated High absorption erbium doped amplifying optical fiber
US6480659B1 (en) * 2001-11-14 2002-11-12 Rayteq Photonic Solutions Ltd. Optic fiber structure for efficient use of optical pump energy in three-level rare-earth doped fiber laser
JP2004207677A (en) * 2002-11-07 2004-07-22 Nippon Telegr & Teleph Corp <Ntt> Optical device and optical fiber for amplification medium
JP2004244280A (en) * 2003-02-14 2004-09-02 Nippon Telegr & Teleph Corp <Ntt> Tellurite glass and optical amplifier using tellurite glass

Also Published As

Publication number Publication date
EP1611650A1 (en) 2006-01-04
WO2004095655A1 (en) 2004-11-04
JP2006522366A (en) 2006-09-28

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