JP4469357B2 - 高出力ファイバ増幅器における誘導ブリルアン散乱(sbs)の抑制 - Google Patents
高出力ファイバ増幅器における誘導ブリルアン散乱(sbs)の抑制 Download PDFInfo
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- JP4469357B2 JP4469357B2 JP2006177742A JP2006177742A JP4469357B2 JP 4469357 B2 JP4469357 B2 JP 4469357B2 JP 2006177742 A JP2006177742 A JP 2006177742A JP 2006177742 A JP2006177742 A JP 2006177742A JP 4469357 B2 JP4469357 B2 JP 4469357B2
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- fiber
- brillouin
- fiber amplifier
- amplifier
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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
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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
- 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
- H01S2301/00—Functional characteristics
- H01S2301/03—Suppression of nonlinear conversion, e.g. specific design to suppress for example stimulated brillouin scattering [SBS], mainly in optical fibres in combination with multimode pumping
-
- 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
- H01S3/07—Construction or shape of active medium consisting of a plurality of parts, e.g. segments
-
- 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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
- H01S3/09415—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-pumping
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
Description
Claims (7)
- 誘導ブリルアン散乱(SBS)を抑制する光励起ファイバ増幅器であって、
光信号源と、
直列に配された少なくとも2つの別個のファイバセグメントを含む、光信号源に応動して前記光信号源からの光出力信号を増幅する光ファイバセクションであって、前記ファイバセグメントの各々は、異なるブリルアン中心周波数を示すように形成されており、前記ブリルアン中心周波数の各々は、前記ファイバ増幅器の一のファイバセグメントから隣接するファイバセグメントに通過する逆方向伝搬ストークス信号の連続的なブリルアン増幅を防ぐよう十分に異なり、前記ファイバ増幅器で生成される全体のストークスパワーが減少するものであり、そして、前記少なくとも2つのファイバセグメントは異なる長さを有し、少なくとも1つのより短い長さを有するファイバセグメントが前記光励起ファイバ増幅器の出力端に配置されることを特徴とする光励起ファイバ増幅器。 - 前記少なくとも2つのファイバセグメントは複数のN個のファイバセグメントを備え、各ファイバセグメントは、前記逆方向伝搬ストークス信号の更なるブリルアン増幅を防ぐために、隣接するファイバセグメントとは異なるブリルアン中心周波数を示し、前記ファイバ増幅器で生成される全体のストークスパワーが減少することを特徴とする請求項1に記載の光励起ファイバ増幅器。
- 前記ファイバセグメントの各々のコア領域を異なる温度に維持することにより、前記異なるブリルアン中心周波数が引き起こされることを特徴とする請求項1に記載の光励起ファイバ増幅器。
- 少なくとも1つの前記ファイバセグメントに物理的ひずみを与えることにより、前記異なるブリルアン中心周波数が引き起こされることを特徴とする請求項1に記載の光励起ファイバ増幅器。
- 少なくとも1つの前記ファイバセグメントの組成を変更することにより、前記異なるブリルアン中心周波数が引き起こされることを特徴とする請求項1に記載の光励起ファイバ増幅器。
- 少なくとも1つの前記ファイバセグメントのモード特性を変更することにより、前記異なるブリルアン中心周波数が引き起こされることを特徴とする請求項1に記載の光励起ファイバ増幅器。
- 隣接するファイバセグメント間の前記ブリルアン中心周波数の差は、前記逆方向伝搬ストークス信号の更なる増幅を防ぐために、前記ファイバ増幅器のブリルアンゲイン帯域幅に等しいかそれよりも大きく、前記ファイバ増幅器で生成される全体のストークスパワーが減少することを特徴とする請求項1に記載の光励起ファイバ増幅器。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/169,998 US7733561B2 (en) | 2005-06-28 | 2005-06-28 | Suppression of stimulated Brillouin scattering (SBS) in high power fiber amplifiers |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007013158A JP2007013158A (ja) | 2007-01-18 |
JP4469357B2 true JP4469357B2 (ja) | 2010-05-26 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006177742A Expired - Fee Related JP4469357B2 (ja) | 2005-06-28 | 2006-06-28 | 高出力ファイバ増幅器における誘導ブリルアン散乱(sbs)の抑制 |
Country Status (2)
Country | Link |
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US (1) | US7733561B2 (ja) |
JP (1) | JP4469357B2 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0713265D0 (en) * | 2007-07-09 | 2007-08-15 | Spi Lasers Uk Ltd | Apparatus and method for laser processing a material |
US7627219B2 (en) * | 2007-11-01 | 2009-12-01 | Ofs Fitel Llc | Large mode area fiber amplifiers with reduced stimulated brillouin scattering |
ATE480029T1 (de) * | 2008-01-18 | 2010-09-15 | Europ Organization For Astrono | Optischer schmalband-faser-raman-verstärker |
US7822314B1 (en) * | 2008-07-02 | 2010-10-26 | The United States Of America As Represented By The Secretary Of The Air Force | Segmented acoustic core photonic crystal fiber laser |
US8254017B2 (en) * | 2009-03-19 | 2012-08-28 | Northrop Grumman Systems Corporation | Optical fiber amplifier and methods of making the same |
US9835502B2 (en) * | 2012-01-19 | 2017-12-05 | Draka Comteq B.V. | Temperature and strain sensing optical fiber and temperature and strain sensor |
FR2994035B1 (fr) * | 2012-07-24 | 2014-08-08 | Onera (Off Nat Aerospatiale) | Amplificateur a fibre optique a seuil brillouin eleve et methode de fabrication d'un tel amplificateur |
US9356416B2 (en) | 2013-03-15 | 2016-05-31 | Ofs Fitel, Llc | Suppression of stimulated brillouin scattering in higher-order-mode optical fiber amplifiers |
WO2014145426A1 (en) | 2013-03-15 | 2014-09-18 | Schott Corporation | Optical fiber for the reduction of stimulated brillouin scattering in high-power applications |
JP7150358B2 (ja) * | 2017-11-07 | 2022-10-11 | シヴァン アドバンスド テクノロジーズ リミテッド | ノイズ補正を有する光フェーズドアレイの動的ビーム成形 |
US11108209B2 (en) | 2019-07-02 | 2021-08-31 | Massachusetts Institute Of Technology | Single-frequency fiber amplifier with distal cladding stripper |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4159178A (en) * | 1976-11-24 | 1979-06-26 | University Of Utah Research Institute | Stimulated brillouin scattering ring laser gyroscope |
DE69841898D1 (de) * | 1997-08-27 | 2010-10-28 | Sumitomo Electric Industries | Nichtlineare optische faser, spule mit optischer faser und wellenlängenkonvertor |
US6323993B1 (en) * | 1999-02-19 | 2001-11-27 | Lucent Technologies Inc. | Method of optical signal transmission with reduced degradation by non-linear effects |
US6459479B1 (en) * | 1999-12-02 | 2002-10-01 | University Of Southern California | Optical detection of a fiber span with high polarization-mode dispersion in a fiber system |
US6535315B1 (en) * | 2000-01-21 | 2003-03-18 | New Elite Technologies, Inc. | Optical fiber transmitter for simultaneously suppressing stimulated brillouin scattering and self/external-phase modulation-induced nolinear distortions in a long-distance broadband distribution system |
US6678294B1 (en) * | 2000-11-06 | 2004-01-13 | Northrop Grumman Corporation | Distributed feedback laser apparatus for avoiding stimulated brillouin scattering |
KR100399578B1 (ko) * | 2000-11-29 | 2003-09-26 | 한국전자통신연구원 | 장파장 이득대역 어븀 첨가 광섬유 증폭기 및 역방향 진행자연방출광 차단 방법 |
GB0222252D0 (en) * | 2002-09-25 | 2002-10-30 | Southampton Photonics Ltd | An optical fibre |
WO2004073184A2 (en) * | 2003-02-13 | 2004-08-26 | Corning Incorporated | Devices and methods for dynamic dispersion compensation |
US6952519B2 (en) * | 2003-05-02 | 2005-10-04 | Corning Incorporated | Large effective area high SBS threshold optical fiber |
WO2005002095A1 (en) * | 2003-06-09 | 2005-01-06 | Corning Incorporated | Optical communication system with suppressed sbs |
-
2005
- 2005-06-28 US US11/169,998 patent/US7733561B2/en not_active Expired - Fee Related
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2006
- 2006-06-28 JP JP2006177742A patent/JP4469357B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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US20070019283A1 (en) | 2007-01-25 |
JP2007013158A (ja) | 2007-01-18 |
US7733561B2 (en) | 2010-06-08 |
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