JP4903999B2 - Edfaをモデル化するシステム、方法、およびコンピュータプログラム製品 - Google Patents
Edfaをモデル化するシステム、方法、およびコンピュータプログラム製品 Download PDFInfo
- Publication number
- JP4903999B2 JP4903999B2 JP2004552025A JP2004552025A JP4903999B2 JP 4903999 B2 JP4903999 B2 JP 4903999B2 JP 2004552025 A JP2004552025 A JP 2004552025A JP 2004552025 A JP2004552025 A JP 2004552025A JP 4903999 B2 JP4903999 B2 JP 4903999B2
- Authority
- JP
- Japan
- Prior art keywords
- gain
- esa
- doped fiber
- parameter
- fiber amplifier
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 27
- 238000004590 computer program Methods 0.000 title claims description 6
- 230000003287 optical effect Effects 0.000 claims description 43
- 239000000835 fiber Substances 0.000 claims description 41
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 238000004364 calculation method Methods 0.000 claims description 12
- 238000001228 spectrum Methods 0.000 claims description 12
- 230000005281 excited state Effects 0.000 claims description 8
- 229910052691 Erbium Inorganic materials 0.000 claims description 4
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 230000001419 dependent effect Effects 0.000 claims 2
- 238000004891 communication Methods 0.000 description 18
- 230000015654 memory Effects 0.000 description 15
- 102100032450 Endothelial differentiation-related factor 1 Human genes 0.000 description 14
- 101001016384 Homo sapiens Endothelial differentiation-related factor 1 Proteins 0.000 description 14
- 230000000694 effects Effects 0.000 description 11
- 238000007796 conventional method Methods 0.000 description 7
- 239000013307 optical fiber Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000002269 spontaneous effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102100027004 Inhibin beta A chain Human genes 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000013515 script Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
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
- H01S3/06754—Fibre 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
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
Claims (9)
- 信号光波長が1560nm以上の波長範囲である場合において、エルビウムを添加した添加ファイバの波長依存励起状態吸収(ESA)パラメータを決定する方法であって、
前記添加ファイバを含む添加ファイバ増幅器の利得を測定して測定利得を生成し、
前記添加ファイバについて測定された利得係数と、吸収係数と、長さ、および平均反転比の推定値と、ESAパラメータの推定値に基づいて、計算利得をGCal(λ)とし、利得係数をg*(λ)とし、ESAパラメータをαESA(λ)とし、吸収係数をα(λ)とし、平均反転比を/Invとし、長さをLとしたときに、
前記平均反転比の推定値として任意の初期値を設定し、
前記測定利得と前記計算利得との差が最小となる平均反転比を計算して平均反転比の決定値とし、
そのときの前記測定利得と前記計算利得との差を所定の閾値に対して比較し、
前記最小の差が前記所定の閾値よりも小さいか最小であれば、前記ESAパラメータの推定値を、決定された前記添加ファイバのESAパラメータとして出力し、
前記最小の差が前記所定の閾値よりも大きい場合は、前記差が前記所定の閾値よりも小さくなるか最小になるまで、前記平均反転比の決定値において、前記計算利得の生成、前記差の比較、および前記ESAパラメータの推定を繰り返すことによって、
前記添加ファイバのESAパラメータを決定する方法。 - 前記添加ファイバ増幅器の複数の動作条件において、前記計算利得を生成することによって、前記添加ファイバのESAパラメータを決定することを特徴とする、請求項1に記載の方法。
- 前記計算利得の生成において、
McCumber理論に従って前記ESAパラメータの初期の推定値を決定することを含む、請求項1に記載の方法。 - 前記ESAパラメータが前記添加ファイバのバックグラウンド損失特性を含む、請求項1に記載の方法。
- 信号光波長が1560nm以上の波長範囲である場合において、エルビウムを添加した添加ファイバの波長依存励起状態吸収(ESA)パラメータを決定するように構成されたシステムであって、
前記添加ファイバを含む添加ファイバ増幅器の利得を測定して測定利得を生成する手段と、
前記添加ファイバについて測定された利得係数と、吸収係数と、長さ、および平均反転比の推定値と、ESAパラメータの推定値に基づいて、計算利得をGCal(λ)とし、利得係数をg*(λ)とし、ESAパラメータをαESA(λ)とし、吸収係数をα(λ)とし、平均反転比を/Invとし、長さをLとしたときに、
前記平均反転比の推定値として任意の初期値を設定する手段と、
前記測定利得と前記計算利得との差が最小となる平均反転比を計算して平均反転比の決定値とし、
そのときの前記測定利得と前記決定利得との差を所定の閾値に対して比較する手段と、
前記最小の差が前記所定の閾値よりも小さいか最小であれば、前記ESAパラメータの推定値を、決定された前期添加ファイバのESAパラメータとして出力する手段と、
前記最小の差が前記所定の閾値よりも大きい場合は、
前記差が前記所定の閾値よりも小さくなるか最小になるまで、前記平均反転比の決定値において、前記計算利得の生成、前記差の比較、および前記ESAパラメータの推定、を繰り返すことによって、
前記添加ファイバのESAパラメータを決定する手段と、
を備えるシステム。 - 利得を測定する前記手段が、
信号光を出力する手段と、
信号光を出力する前記手段からの信号パワーを所定の信号レベルへ調整する手段と、
前記添加ファイバを含む添加ファイバ増幅器と、
前記添加ファイバ増幅器へ提供された信号パワーを測定する手段と、
信号光を前記添加ファイバ増幅器へ入力する手段と、
前記添加ファイバ増幅器から出力された信号パワーを測定する手段と、
前記添加ファイバ増幅器を制御する制御手段と、
信号光を出力する前記手段、信号パワーを調整する前記手段、前記制御手段、前記添加ファイバ増幅器へ入力される信号パワーを測定する前記手段、および、前記添加ファイバ増幅器から出力された信号パワーを測定する前記手段を制御して前記測定利得を導出する手段と、
を備える、請求項5に記載のシステム。 - 利得を測定する前記手段が、
出力部を有する信号源と、
減衰器入力部および出力部を有する光減衰器であって、該減衰器入力部が前記信号源の出力部に接続された光減衰器と、
第1のスイッチ入力部、第1のスイッチ直接出力部、および第1のスイッチバイパス出力部を有し、前記第1のスイッチ入力部が前記光減衰器の出力部に接続された第1の光スイッチと、
前記添加ファイバを含み、添加ファイバ増幅器入力部および添加ファイバ増幅器出力部を有し、前記添加ファイバ増幅器入力部が前記第1のスイッチ直接出力部に接続された添加ファイバ増幅器と、
第2のスイッチ入力部、アナライザ出力部、およびパワーメータ出力部を有し、前記第2のスイッチ入力部が前記添加ファイバ増幅器出力部に接続された第2の光スイッチと、
アナライザ入力部および出力部を有し、前記アナライザ入力部が前記第2のスイッチのアナライザ出力部に接続された光スペクトルアナライザと、
パワーメータ入力部および出力部を有し、該パワーメータ入力部が前記第2のスイッチのパワーメータ出力部に接続された光パワーメータと、
前記添加ファイバ増幅器を制御するように接続および構成された制御回路と、
前記信号源、前記光減衰器、前記第1の光スイッチ、前記制御回路、前記第2の光スイッチ、前記光スペクトルアナライザ、および、前記光パワーメータを制御して前記測定利得を導出するように接続および構成されたコンピュータと、
を備える、請求項5に記載のシステム。 - 前記コンピュータが、
利得を決定する前記手段と、
励起状態吸収(ESA)パラメータを決定する前記手段と、
比較する前記手段と、
前記励起状態吸収(ESA)を出力する前記手段と
を備える、請求項7に記載のシステム。 - 請求項1〜4の方法のうちのいずれか一項に対応する命令を含むようにおよび提供するように構成されたコンピュータプログラム製品。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US42470702P | 2002-11-08 | 2002-11-08 | |
US60/424,707 | 2002-11-08 | ||
PCT/US2003/035861 WO2004044559A2 (en) | 2002-11-08 | 2003-11-10 | System, method and computer program product for modeling of edfa |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006505958A JP2006505958A (ja) | 2006-02-16 |
JP4903999B2 true JP4903999B2 (ja) | 2012-03-28 |
Family
ID=32312856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004552025A Expired - Lifetime JP4903999B2 (ja) | 2002-11-08 | 2003-11-10 | Edfaをモデル化するシステム、方法、およびコンピュータプログラム製品 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20060028712A1 (ja) |
JP (1) | JP4903999B2 (ja) |
AU (1) | AU2003287619A1 (ja) |
WO (1) | WO2004044559A2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5204975B2 (ja) * | 2007-01-25 | 2013-06-05 | 株式会社東芝 | ファイバ増幅器 |
US9059799B2 (en) | 2011-04-21 | 2015-06-16 | Futurewei Technologies, Inc. | Apparatus and method to calculate a noise figure of an optical amplifier for wavelength channels in a partial-fill scenario to account for channel loading |
US10756504B2 (en) * | 2018-03-30 | 2020-08-25 | Northrop Grumman Systems Corporation | Spectrally compensated fiber amplifier system |
JP2019208119A (ja) * | 2018-05-29 | 2019-12-05 | 日本電信電話株式会社 | 光受信装置 |
CN112585889B (zh) * | 2018-08-20 | 2022-10-11 | 华为技术有限公司 | 一种建立数据模型的方法及装置 |
CN114640393B (zh) * | 2022-05-10 | 2022-08-16 | 北京中昱光通科技有限公司 | 一种提升edfa掺饵放大器性能的方法及装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5282079A (en) * | 1988-06-10 | 1994-01-25 | Pirelli General Plc | Optical fibre amplifier |
US4926429A (en) * | 1989-07-13 | 1990-05-15 | At&T Bell Laboratories | Lightwave communication system having sources independently synchronized to an absolute frequency standard |
US5309452B1 (en) * | 1992-01-31 | 1998-01-20 | Univ Rutgers | Praseodymium laser system |
JP3618008B2 (ja) * | 1995-03-17 | 2005-02-09 | 富士通株式会社 | 光増幅器 |
US6924928B2 (en) * | 2000-10-02 | 2005-08-02 | The United States Of America As Represented By The Secretary Of The Navy | Amplification device utilizing thulium doped modified silicate optical fiber |
-
2003
- 2003-11-10 JP JP2004552025A patent/JP4903999B2/ja not_active Expired - Lifetime
- 2003-11-10 AU AU2003287619A patent/AU2003287619A1/en not_active Abandoned
- 2003-11-10 WO PCT/US2003/035861 patent/WO2004044559A2/en active Application Filing
-
2005
- 2005-05-09 US US11/124,290 patent/US20060028712A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2004044559A2 (en) | 2004-05-27 |
US20060028712A1 (en) | 2006-02-09 |
JP2006505958A (ja) | 2006-02-16 |
AU2003287619A8 (en) | 2004-06-03 |
AU2003287619A1 (en) | 2004-06-03 |
WO2004044559A3 (en) | 2004-07-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10361957B1 (en) | Predicting optical spectral profiles in advance of capacity changes in optical networks | |
Min et al. | Efficient formulation of Raman amplifier propagation equations with average power analysis | |
EP3567755B1 (en) | Multi-wavelength distributed raman amplification set-up | |
US20060028712A1 (en) | System, method and computer program product for modeling EDFA | |
Bolshtyansky et al. | Model of temperature dependence for gain shape of erbium-doped fiber amplifier | |
JP2010160514A (ja) | 波長多重励起ラマンアンプ、波長多重励起ラマンアンプの制御方法および制御プログラム | |
Liu et al. | A novel method for Raman amplifier propagation equations | |
Mishra et al. | Performance analysis and implementation of different pumping techniques on an EDFA amplifier | |
JP4863191B2 (ja) | 光増幅特性シミュレーション装置および方法 | |
Vanin et al. | Spectral functional forms for gain and noise characterization of erbium-doped fiber amplifiers | |
US6381560B1 (en) | Methods of modeling erbium doped fiber amplifiers | |
Bristiel et al. | Intrinsic noise figure derivation for fiber Raman amplifiers from equivalent noise figure measurement | |
Karasek et al. | Time‐domain simulation of power transients in Raman fibre amplifiers | |
Felinskyi et al. | Signal-to-noise analysis in a counter-pumped fiber Raman amplifier | |
Ferreira et al. | Site-dependent pumping effect on two-level EDFAs | |
Naji et al. | Theoretical analysis of triple-pass erbium-doped fiber amplifier | |
Di Muro | The Er3+-fiber gain coefficient derived from a dynamic gain tilt technique | |
Karasek et al. | Modelling of a pump-power-controlled gain-locking system for multi-pump wideband Raman fibre amplifiers | |
Akhter et al. | Design and characterization of a new three-stage quadruple pass EDFA | |
Felinskyi et al. | Noise suppression phenomenon in fiber Raman amplifier | |
Willems et al. | Experimental demonstration of noise figure reduction caused by nonlinear photon statistics of saturated EDFA's | |
Park et al. | Integral form expansion of fiber Raman amplifier problem | |
Villa et al. | Extended black-box model for fiber length variation of erbium-doped fiber amplifiers | |
Nissov | Extension of semi-analytical erbium-doped fiber amplifier model to self-saturation regime | |
Varaksa et al. | Modeling the gain and amplified spontaneous emission spectra of erbium-doped fiber amplifiers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20061107 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090210 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20090511 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20090518 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20090610 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20090617 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20090709 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20090716 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20090810 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100824 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101124 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20110208 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110608 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A712 Effective date: 20110608 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20110609 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110902 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20110930 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20111006 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20111115 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20111125 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20111220 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120106 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 4903999 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150113 Year of fee payment: 3 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150113 Year of fee payment: 3 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term |