JP2022546311A - 分散型利得平坦化を有する光ファイバ増幅器 - Google Patents
分散型利得平坦化を有する光ファイバ増幅器 Download PDFInfo
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- JP2022546311A JP2022546311A JP2022511258A JP2022511258A JP2022546311A JP 2022546311 A JP2022546311 A JP 2022546311A JP 2022511258 A JP2022511258 A JP 2022511258A JP 2022511258 A JP2022511258 A JP 2022511258A JP 2022546311 A JP2022546311 A JP 2022546311A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 30
- 239000000835 fiber Substances 0.000 claims abstract description 73
- 238000001914 filtration Methods 0.000 claims abstract description 43
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 6
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 6
- 230000003595 spectral effect Effects 0.000 claims description 23
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 12
- 230000003321 amplification Effects 0.000 claims description 11
- 230000001902 propagating effect Effects 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 7
- 238000001228 spectrum Methods 0.000 abstract description 12
- 230000001419 dependent effect Effects 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- H01S3/0675—Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers
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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
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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
- H01S3/14—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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/293—Signal power control
- H04B10/294—Signal power control in a multiwavelength system, e.g. gain equalisation
- H04B10/2941—Signal power control in a multiwavelength system, e.g. gain equalisation using an equalising unit, e.g. a filter
-
- 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
- H01S2301/04—Gain spectral shaping, flattening
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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
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0064—Anti-reflection devices, e.g. optical isolaters
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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
- H01S3/06762—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
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Lasers (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
本出願は、2019年8月21日に出願され、参照により本明細書に組み込まれた米国仮出願第62/889,819号の利益を主張する。
傾斜格子では、格子変調の面はファイバの軸(ここでは、Erドープ利得ファイバ12の軸)に対してある角度をなす。このような格子は、光を利得ファイバのクラッディングモードに散乱させ、信号の減衰を引き起こす。波長依存減衰は、異なる周期を有するいくつかの傾斜格子を重ね合わせることによって構成することができる。
典型的な傾斜角は0度から9度の間の範囲である。
Claims (9)
- 所定の動作帯域幅にわたって光信号増幅を提供するための希土類ドープ光ファイバ増幅器であって、
希土類ドープ光ファイバセクションであって、前記希土類ドープ光ファイバセクションの少なくとも一部に沿って組み込まれた格子構造を含むように形成された、希土類ドープ光ファイバセクションと、
増幅された光出力信号を出力として生成し、希土類ドープ光ファイバの前記セクションを通って伝搬する光信号のための利得を生成するのに適した波長のポンプビームを提供するための光源とを含み、
前記希土類ドープ光ファイバセクション内に組み込まれた前記格子構造は、前記希土類ドープ光ファイバ増幅器の前記所定の動作帯域幅内で分散型スペクトルフィルタリングを提供するように構成される、希土類ドープ光ファイバ増幅器。 - 前記格子構造は傾斜格子を含み、前記傾斜格子は、前記所定の動作帯域幅にわたって分散型利得平坦化を提供するように選択される傾斜角および格子周期を有する、請求項1に記載の希土類ドープ光ファイバ増幅器。
- 前記格子構造は、前記希土類ドープ光ファイバの前記セクションの大部分に沿って連続して形成された同様の特性を複数有する複数の傾斜格子を含む、請求項2に記載の希土類ドープ光ファイバ増幅器。
- 前記格子構造は、前記希土類ドープ光ファイバの前記セクションのドープされたコア領域内に内接する弱いブラッグ格子を含み、前記格子および前記格子周期に沿った屈折率の差は、前記所定の動作帯域幅にわたって分散型スペクトルフィルタリングを提供するように選択される、請求項1に記載の希土類ドープ光ファイバ増幅器。
- 前記格子構造は、前記希土類ドープ光ファイバ増幅器の前記所定の動作帯域幅内で分散型スペクトルフィルタリングを提供するように構成された特性を有する複数の長周期格子(LPG)を含む、請求項1に記載の希土類ドープ光ファイバ増幅器。
- 前記格子構造が、複数の傾斜格子、複数の弱いブラッグ格子、および複数のLPGからなる群の内の1つ以上の要素を含む、請求項1に記載の希土類ドープ光ファイバ増幅器。
- 前記格子構造は、前記所定の動作帯域幅を拡張する分散型スペクトルフィルタリング応答を示すように構成される、請求項1に記載の希土類ドープ光ファイバ増幅器。
- 前記格子構造は、前記所定の動作帯域幅にわたって所定の利得プロファイルを生成する分散型スペクトルフィルタリング応答を示すように構成される、請求項1に記載の希土類ドープ光ファイバ増幅器。
- 前記所定の利得プロファイルは、利得平坦化プロファイルを含む、請求項8に記載の希土類ドープ光ファイバ増幅器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US201962889819P | 2019-08-21 | 2019-08-21 | |
US62/889,819 | 2019-08-21 | ||
PCT/US2020/046805 WO2021034830A1 (en) | 2019-08-21 | 2020-08-18 | Optical fiber amplifier with distributed gain flattening |
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JP2022546311A true JP2022546311A (ja) | 2022-11-04 |
JPWO2021034830A5 JPWO2021034830A5 (ja) | 2023-07-20 |
JP7427770B2 JP7427770B2 (ja) | 2024-02-05 |
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US (1) | US20220337015A1 (ja) |
EP (1) | EP4018516A4 (ja) |
JP (1) | JP7427770B2 (ja) |
WO (1) | WO2021034830A1 (ja) |
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US11824588B1 (en) * | 2023-04-20 | 2023-11-21 | Attochron, Llc | Reducing scintillation noise in free-space optical communications |
Citations (5)
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JPH06177467A (ja) * | 1992-07-27 | 1994-06-24 | General Instr Corp | 平坦化した利得の傾斜を有する光学ファイバー増幅器およびレーザー |
JP2000180640A (ja) * | 1998-12-16 | 2000-06-30 | Mitsubishi Cable Ind Ltd | ゲインイコライザ、光増幅装置および光ファイバ通信システム |
JP2001203415A (ja) * | 2000-01-20 | 2001-07-27 | Kddi Corp | 光増幅器 |
JP2002100824A (ja) * | 2000-09-21 | 2002-04-05 | Mitsubishi Cable Ind Ltd | 利得等化装置及び光伝送システム |
JP2004500702A (ja) * | 1999-08-09 | 2004-01-08 | コーニング・インコーポレーテッド | 分布フィルタによるl帯域光増幅器 |
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US5430817A (en) * | 1994-03-31 | 1995-07-04 | At&T Corp. | Optical systems and devices using long period spectral shaping devices |
CA2244572A1 (en) * | 1997-08-12 | 1999-02-12 | Photonics Research Ontario | Design of complex optical fiber filters using long-period gratings |
KR20010053319A (ko) * | 1998-06-30 | 2001-06-25 | 알프레드 엘. 미첼슨 | 광학 증폭기의 열적 조절 및 파장분할 멀티플렉스시스템에서의 그 사용 |
US6141142A (en) * | 1999-02-19 | 2000-10-31 | Lucent Technologies Inc. | Article comprising an L-Band optical fiber amplifier |
KR100353418B1 (ko) * | 1999-03-11 | 2002-09-18 | 삼성전자 주식회사 | 내부에 격자가 형성된 어븀 첨가 광섬유 제조방법 및 그에 따라 제조된 광섬유를 이용한 광섬유 증폭기 |
US6603909B2 (en) * | 2000-11-21 | 2003-08-05 | 3M Innovative Properties Company | Laser pigtail fiber with inherent attenuation characteristic |
US6950576B1 (en) * | 2001-03-29 | 2005-09-27 | Sabeus Photonics, Inc. | Mode coupling devices with complex spectral profile |
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- 2020-08-18 WO PCT/US2020/046805 patent/WO2021034830A1/en unknown
- 2020-08-18 US US17/636,884 patent/US20220337015A1/en active Pending
- 2020-08-18 EP EP20853710.0A patent/EP4018516A4/en active Pending
- 2020-08-18 JP JP2022511258A patent/JP7427770B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH06177467A (ja) * | 1992-07-27 | 1994-06-24 | General Instr Corp | 平坦化した利得の傾斜を有する光学ファイバー増幅器およびレーザー |
JP2000180640A (ja) * | 1998-12-16 | 2000-06-30 | Mitsubishi Cable Ind Ltd | ゲインイコライザ、光増幅装置および光ファイバ通信システム |
JP2004500702A (ja) * | 1999-08-09 | 2004-01-08 | コーニング・インコーポレーテッド | 分布フィルタによるl帯域光増幅器 |
JP2001203415A (ja) * | 2000-01-20 | 2001-07-27 | Kddi Corp | 光増幅器 |
JP2002100824A (ja) * | 2000-09-21 | 2002-04-05 | Mitsubishi Cable Ind Ltd | 利得等化装置及び光伝送システム |
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JP7427770B2 (ja) | 2024-02-05 |
EP4018516A4 (en) | 2023-09-27 |
EP4018516A1 (en) | 2022-06-29 |
US20220337015A1 (en) | 2022-10-20 |
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