WO2003077381A3 - Amplifiers and light sources employing s-band erbium-doped fiber and l-band thulium-doped fiber with distributed suppression of amplified spontaneous emission (ase) - Google Patents

Amplifiers and light sources employing s-band erbium-doped fiber and l-band thulium-doped fiber with distributed suppression of amplified spontaneous emission (ase) Download PDF

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Publication number
WO2003077381A3
WO2003077381A3 PCT/US2003/006971 US0306971W WO03077381A3 WO 2003077381 A3 WO2003077381 A3 WO 2003077381A3 US 0306971 W US0306971 W US 0306971W WO 03077381 A3 WO03077381 A3 WO 03077381A3
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WO
WIPO (PCT)
Prior art keywords
band
roll
doped fiber
core
fiber amplifier
Prior art date
Application number
PCT/US2003/006971
Other languages
French (fr)
Other versions
WO2003077381A2 (en
Inventor
Mark A Arbore
Gregory L Keaton
Thomas J Kane
Yidong Zhou
Jeffrey D Kmetec
Original Assignee
Lightwave Electronics
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 US10/095,303 external-priority patent/US6909538B2/en
Priority claimed from US10/163,557 external-priority patent/US6970631B2/en
Priority claimed from US10/348,802 external-priority patent/US6995900B2/en
Application filed by Lightwave Electronics filed Critical Lightwave Electronics
Priority to EP03713958A priority Critical patent/EP1488482A4/en
Priority to AU2003217981A priority patent/AU2003217981A1/en
Priority to JP2003575476A priority patent/JP2005520326A/en
Priority to CA002478314A priority patent/CA2478314A1/en
Publication of WO2003077381A2 publication Critical patent/WO2003077381A2/en
Publication of WO2003077381A3 publication Critical patent/WO2003077381A3/en

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    • 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
    • H01S3/06754—Fibre amplifiers
    • H01S3/06758—Tandem amplifiers
    • 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
    • H01S2301/00—Functional characteristics
    • H01S2301/02—ASE (amplified spontaneous emission), noise; Reduction thereof
    • 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
    • H01S3/06712—Polarising fibre; Polariser
    • 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
    • H01S3/06716—Fibre compositions or doping with active elements
    • 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
    • H01S3/0672—Non-uniform radial doping
    • 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
    • H01S3/06729—Peculiar transverse fibre profile
    • 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
    • H01S3/06754—Fibre amplifiers
    • H01S3/06762—Fibre amplifiers having a specific amplification band
    • H01S3/06766—C-band amplifiers, i.e. amplification in the range of about 1530 nm to 1560 nm
    • 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
    • H01S3/06754—Fibre amplifiers
    • H01S3/06762—Fibre amplifiers having a specific amplification band
    • H01S3/0677—L-band amplifiers, i.e. amplification in the range of about 1560 nm to 1610 nm
    • 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
    • H01S3/06754—Fibre amplifiers
    • H01S3/06762—Fibre amplifiers having a specific amplification band
    • H01S3/06775—S-band amplifiers, i.e. amplification in the range of about 1450 nm to 1530 nm
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1601—Solid materials characterised by an active (lasing) ion
    • H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
    • H01S3/1608—Solid materials characterised by an active (lasing) ion rare earth erbium
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1601—Solid materials characterised by an active (lasing) ion
    • H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
    • H01S3/1616—Solid materials characterised by an active (lasing) ion rare earth thulium

Abstract

The present invention provides an Erbium-Doped Fiber Amplifier (EDFA) and a source that employs the EDFA for generating light in an S-band of wavelengths. A fiber amplifier (10) in a depressed cladding or W-profile fiber has a core (12) doped with the active material (18) and defined by a core cross-section and a refractive index no. A depressed cladding (14) of index n1 surrounds the core (12) and a secondary cladding (16) of index n2 surrounding the depressed cladding (14). The fiber amplifier is pumped a level of high relative inversion D, such that the active material exhibits positive gains in a short wavelength band and high gains in a long wavelength band. In one embodiment, the core cross-section, the depressed cladding cross-section and the refractive indices no, n1, and n2 are selected to provide distributed ASE suppression at wavelengths longer than cutoff wavelength λc over the length of fiber amplifier (10). In another embodiment, such selection provides a roll-off loss curve about a cutoff wavelength λc. The roll-off loss curve yields losses at least comparable to the high gains in the long wavelength band and losses substantially smaller than the positive gains in the short wavelength band. To obtain the desired roll-off loss curve the refractive index no in the core is selected such that an effective index neff experienced by the confined mode maximizes a roll-off slope of the roll-off loss curve before the cutoff wavelength.
PCT/US2003/006971 2002-03-08 2003-03-07 Amplifiers and light sources employing s-band erbium-doped fiber and l-band thulium-doped fiber with distributed suppression of amplified spontaneous emission (ase) WO2003077381A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03713958A EP1488482A4 (en) 2002-03-08 2003-03-07 Amplifiers and light sources employing s-band erbium-doped fiber and l-band thulium-doped fiber with distributed suppression of amplified spontaneous emission (ase)
AU2003217981A AU2003217981A1 (en) 2002-03-08 2003-03-07 Amplifiers and light sources employing s-band erbium-doped fiber and l-band thulium-doped fiber with distributed suppression of amplified spontaneous emission (ase)
JP2003575476A JP2005520326A (en) 2002-03-08 2003-03-07 Amplifier and light source using S-band erbium-doped fiber and L-band thulium-doped fiber to suppress dispersion of amplified spontaneous emission (ASE)
CA002478314A CA2478314A1 (en) 2002-03-08 2003-03-07 Amplifiers and light sources employing s-band erbium-doped fiber and l-band thulium-doped fiber with distributed suppression of amplified spontaneous emission (ase)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US10/095,303 US6909538B2 (en) 2002-03-08 2002-03-08 Fiber amplifiers with depressed cladding and their uses in Er-doped fiber amplifiers for the S-band
US10/095,303 2002-03-08
US10/163,557 US6970631B2 (en) 2002-06-05 2002-06-05 Suppression of cladding mode loss in fiber amplifiers with distributed suppression of amplified spontaneous emission (ASE)
US10/163,557 2002-06-05
US10/194,680 US6844962B2 (en) 2002-03-08 2002-07-12 S-band light sources using erbium-doped fiber with depressed cladding
US10/194,680 2002-07-12
US10/348,802 US6995900B2 (en) 2003-01-21 2003-01-21 Method of making a short-pass fiber with controlled cut-off wavelength
US10/348,802 2003-01-21

Publications (2)

Publication Number Publication Date
WO2003077381A2 WO2003077381A2 (en) 2003-09-18
WO2003077381A3 true WO2003077381A3 (en) 2004-08-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/006971 WO2003077381A2 (en) 2002-03-08 2003-03-07 Amplifiers and light sources employing s-band erbium-doped fiber and l-band thulium-doped fiber with distributed suppression of amplified spontaneous emission (ase)

Country Status (5)

Country Link
EP (1) EP1488482A4 (en)
JP (1) JP2005520326A (en)
AU (1) AU2003217981A1 (en)
CA (1) CA2478314A1 (en)
WO (1) WO2003077381A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9541426B2 (en) 2009-05-27 2017-01-10 Silica Limited Optical sensor and method of use

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1317600C (en) * 2003-12-30 2007-05-23 武汉光迅科技股份有限公司 Gain dsplacement type thulium aduterated optical fiber amplifier using spontaneous radiation light source as auxiliary pumping
FI20045308A (en) 2004-08-26 2006-02-27 Corelase Oy Optical fiber amplifier with modal discrimination of amplification
EP1744189A1 (en) * 2005-07-14 2007-01-17 TRUMPF Laser GmbH + Co. KG High power lightguide with scattering centres
KR101386108B1 (en) 2013-05-31 2014-04-16 광주과학기술원 Optical amplifier using optical fiber
CN112655122A (en) * 2018-08-30 2021-04-13 Ofs菲特尔有限责任公司 Wide gain bandwidth C wave band optical fiber amplifier
RU206388U1 (en) * 2020-12-29 2021-09-08 федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)" (МГТУ им. Н.Э. Баумана) Fiber thulium power amplifier for ultrashort pulses at a wavelength of 1.9 μm
CN114779394B (en) * 2022-06-17 2022-12-02 武汉华锐超快光纤激光技术有限公司 Normal dispersion thulium-doped single-mode optical fiber, preparation method thereof and laser

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US6445494B1 (en) * 1996-12-04 2002-09-03 Southampton Photonics Limited Optical amplifier and light source
US6556757B2 (en) * 2000-03-10 2003-04-29 Corning Incorporated Optical fiber with absorbing overclad glass layer

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GB9914549D0 (en) * 1999-06-23 1999-08-25 Univ Leeds A wide band optical amplifier
WO2001050639A2 (en) * 1999-12-30 2001-07-12 Alcatel Method for transmitting signals using optical fibres and fibre therefor
CA2372638C (en) * 2001-02-21 2006-09-12 Nippon Telegraph And Telephone Corporation Thulium-doped fiber amplifier using pump light for improving conversion efficiency in s-band
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Publication number Priority date Publication date Assignee Title
US6445494B1 (en) * 1996-12-04 2002-09-03 Southampton Photonics Limited Optical amplifier and light source
US6556757B2 (en) * 2000-03-10 2003-04-29 Corning Incorporated Optical fiber with absorbing overclad glass layer

Non-Patent Citations (1)

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Title
See also references of EP1488482A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9541426B2 (en) 2009-05-27 2017-01-10 Silica Limited Optical sensor and method of use

Also Published As

Publication number Publication date
JP2005520326A (en) 2005-07-07
WO2003077381A2 (en) 2003-09-18
EP1488482A4 (en) 2005-11-23
EP1488482A2 (en) 2004-12-22
AU2003217981A8 (en) 2003-09-22
CA2478314A1 (en) 2003-09-18
AU2003217981A1 (en) 2003-09-22

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