DE717478T1 - Optischer Verstärker - Google Patents

Optischer Verstärker

Info

Publication number
DE717478T1
DE717478T1 DE0717478T DE95107877T DE717478T1 DE 717478 T1 DE717478 T1 DE 717478T1 DE 0717478 T DE0717478 T DE 0717478T DE 95107877 T DE95107877 T DE 95107877T DE 717478 T1 DE717478 T1 DE 717478T1
Authority
DE
Germany
Prior art keywords
amplifier
optical
radiation
input
stimulated emission
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.)
Pending
Application number
DE0717478T
Other languages
English (en)
Other versions
DE19507877A1 (de
Inventor
Piero Gambini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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
Application filed by CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of DE717478T1 publication Critical patent/DE717478T1/de
Pending legal-status Critical Current

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
    • H01S3/06754—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
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • 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
    • 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
    • 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
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • 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
    • H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2375—Hybrid lasers
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers
    • H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers
    • H01S5/146—External cavity lasers using a fiber as external cavity
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • H01S5/5009—Amplifier structures not provided for in groups H01S5/02 - H01S5/30 the arrangement being polarisation-insensitive
    • H01S5/5018—Amplifier structures not provided for in groups H01S5/02 - H01S5/30 the arrangement being polarisation-insensitive using two or more amplifiers or multiple passes through the same amplifier
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • H01S5/5063—Amplifier structures not provided for in groups H01S5/02 - H01S5/30 operating above threshold
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • H01S5/5063—Amplifier structures not provided for in groups H01S5/02 - H01S5/30 operating above threshold
    • H01S5/5072—Gain clamping, i.e. stabilisation by saturation using a further mode or frequency

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Semiconductor Lasers (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)

Claims (5)

Patentansprüche:
1. Optischer Verstärker, gekennzeichnet durch:
eine Eingangsstufe (2), die einen ersten aktiven optisehen Wellenleiterverstärker umfaßt;
- eine Ausgangsstufe (3), die einen zweiten aktiven optischen Wellenleiterverstärker umfaßt; und
eine Zwischenstufe (4; 20, 30, 40) mit einem Halbleiterverstärker, dem eine Einrichtung (9; 20, 30) zum Erzeugen einer Verstärkungskiemmung zugeordnet ist,
der durch stimulierte Emission eine Strahlung mit einer anderen Wellenlänge als der eines zu verstärkenden Lichtsignals emittieren kann, wobei diese Strahlung in einem Pumpband der aktiven Wellenleiterverstärker liegt, der weiterhin durch einen Strom so
vorbelastet ist, daß er in einen stimulierten Emissionszustand gebracht ist, und der mit den die Eingangsstufe und die Ausgangsstufe (2, 3) bildenden Wellenleitern so gekoppelt ist, daß er in diese als Pumpstrahlung die durch die stimulierte Emission emit
tierte Strahlung sendet.
2. Optischer Verstärker nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung zum Realisieren einer Verstärkungsklemmung ein innerhalb des Halbleiterverstärkers (4) gebildetes Gitter (9) umfaßt.
3. Optischer Verstärker nach Anspruch 1, dadurch gekennzeichnet, daß die Einrichtung zum Realisieren einer Verstärkungsklemmung zwei optische Fasergitter (20, 30) umfaßt, die mit dem Halbleiterverstärker (40) verbunden sind und dazu angeordnet sind, die vom Halbleiterverstärker (40) durch stimulierte Emission emittierte Strahlung teilweise zu reflektieren.
4. Optischer Verstärker nach Anspruch 3,dadurch gekennzeichnet, daß die optischen Fasergitter {20, 30) innerhalb der Endteile der aktiven optischen Fasern, die die Eingangsund die Ausgangsstufen (2, 3) bilden, hergestellt sind.
5. Optischer Verstärker nach einen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß er außerdem einen
Eingangsisolator (5) und einen Ausgangsisolator (6) zum Anschluß der Eingangs- und Ausgangsstufen (2, 3) an optische Übertragungsleitungen (7, 8), die die zu verstärkenden Signale bzw. die verstärkten Signale führen, umfaßt. 20
DE0717478T 1994-12-15 1995-05-23 Optischer Verstärker Pending DE717478T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT94TO001019A IT1267648B1 (it) 1994-12-15 1994-12-15 Amplificatore ottico.

Publications (1)

Publication Number Publication Date
DE717478T1 true DE717478T1 (de) 1998-05-28

Family

ID=11412969

Family Applications (2)

Application Number Title Priority Date Filing Date
DE0717478T Pending DE717478T1 (de) 1994-12-15 1995-05-23 Optischer Verstärker
DE69506077T Expired - Fee Related DE69506077T2 (de) 1994-12-15 1995-05-23 Optischer Verstärker

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69506077T Expired - Fee Related DE69506077T2 (de) 1994-12-15 1995-05-23 Optischer Verstärker

Country Status (6)

Country Link
US (1) US5673141A (de)
EP (1) EP0717478B1 (de)
JP (1) JP2640445B2 (de)
CA (1) CA2150950C (de)
DE (2) DE717478T1 (de)
IT (1) IT1267648B1 (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
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DE19636236B4 (de) * 1996-09-06 2004-09-16 Evotec Technologies Gmbh Diodenlasergepumpter Vielmoden-Wellenleiterlaser, insbesondere Faserlaser
DE19647488A1 (de) * 1996-11-16 1998-05-20 Alsthom Cge Alcatel Optischer Verstärker für Signale einer großen Bandbreite und optisches Übertragungssystem mit einem solchen optischen Verstärker
EP0901245B1 (de) * 1997-08-27 2006-05-17 Interuniversitair Micro-Elektronica Centrum Vzw Optische Entscheidungsschaltung und dessen Verwendung
KR19990035458A (ko) * 1997-10-31 1999-05-15 윤종용 증폭이득 고정형 광증폭기
JP3607497B2 (ja) * 1998-03-17 2005-01-05 日本電気株式会社 利得等化器と利得等化機能を備えた光増幅装置
DE19926811A1 (de) * 1999-03-22 2000-09-28 Claude Stricker Lichtquelle für die optische Informationsübertragung
US6891664B2 (en) * 1999-03-22 2005-05-10 Finisar Corporation Multistage tunable gain optical amplifier
US6249373B1 (en) * 1999-12-22 2001-06-19 At&T Corp. Semiconductor optical amplifier with adjustable gain
US6310720B1 (en) * 2000-06-02 2001-10-30 Genoa Corporation Polarization insensitive semiconductor optical amplifier
EP1172907B1 (de) * 2000-07-11 2006-05-31 Corning Incorporated Optischer Verstärker mit verstellbarer stabilisierter Verstärkung
US6778320B1 (en) * 2000-11-20 2004-08-17 Avanex Corporation Composite optical amplifier
US6490077B1 (en) * 2000-11-20 2002-12-03 Corning Incorporated Composite optical amplifier
US6560010B1 (en) * 2000-12-14 2003-05-06 Genoa Corporation Broadband gain-clamped semiconductor optical amplifier devices
US6853658B1 (en) 2000-12-14 2005-02-08 Finisar Corporation Optical logical circuits based on lasing semiconductor optical amplifiers
US7065300B1 (en) 2000-12-14 2006-06-20 Finsiar Corporation Optical transmitter including a linear semiconductor optical amplifier
US6493132B1 (en) * 2001-02-14 2002-12-10 Agere Systems Guardian Corp. Monolithic optically pumped high power semiconductor lasers and amplifiers
US6909536B1 (en) 2001-03-09 2005-06-21 Finisar Corporation Optical receiver including a linear semiconductor optical amplifier
US6731424B1 (en) * 2001-03-15 2004-05-04 Onetta, Inc. Dynamic gain flattening in an optical communication system
US6483637B2 (en) 2001-03-30 2002-11-19 Sycamore Networks, Inc. System and method for per-band optical amplification
GB0109167D0 (en) * 2001-04-12 2001-05-30 Corning Ltd Composite optical amplifier
US6836357B2 (en) 2001-10-04 2004-12-28 Gazillion Bits, Inc. Semiconductor optical amplifier using laser cavity energy to amplify signal and method of fabrication thereof
US6597497B2 (en) 2001-10-04 2003-07-22 Shih-Yuan Wang Semiconductor optical amplifier with transverse laser cavity intersecting optical signal path and method of fabrication thereof
US6714344B2 (en) 2001-10-04 2004-03-30 Gazillion Bits, Inc. Reducing output noise in a ballast-powered semiconductor optical amplifier
US7116851B2 (en) * 2001-10-09 2006-10-03 Infinera Corporation Optical signal receiver, an associated photonic integrated circuit (RxPIC), and method improving performance
US7672546B2 (en) 2001-10-09 2010-03-02 Infinera Corporation Optical transport network having a plurality of monolithic photonic integrated circuit semiconductor chips
US20080044128A1 (en) * 2001-10-09 2008-02-21 Infinera Corporation TRANSMITTER PHOTONIC INTEGRATED CIRCUITS (TxPICs) AND OPTICAL TRANSPORT NETWORK SYSTEM EMPLOYING TxPICs
US7751658B2 (en) * 2001-10-09 2010-07-06 Infinera Corporation Monolithic transmitter photonic integrated circuit (TxPIC) having tunable modulated sources with feedback system for source power level or wavelength tuning
EP1436870A2 (de) * 2001-10-09 2004-07-14 Infinera Corporation Integrierte fotonische sendschaltung und optisches netzwerk damit
KR100395430B1 (ko) * 2001-10-29 2003-08-21 이동한 라만 광섬유증폭기와 반도체 광증폭기의 결합장치
US7747114B2 (en) 2002-10-08 2010-06-29 Infinera Corporation Tilted combiners/decombiners and photonic integrated circuits (PICs) employing the same
KR100617772B1 (ko) * 2004-02-25 2006-08-28 삼성전자주식회사 반도체 광증폭기 및 이를 이용한 광증폭 장치
JP4606369B2 (ja) * 2006-04-06 2011-01-05 日本電信電話株式会社 光増幅器
US7535630B2 (en) * 2006-06-08 2009-05-19 Industrial Technology Research Institute Broadband hybrid two-stage optical amplifier
US7702201B2 (en) * 2006-06-08 2010-04-20 Industrial Technology Research Institute Gain flattening utilizing a two-stage erbium-based amplifier
JP2014126718A (ja) * 2012-12-26 2014-07-07 V Technology Co Ltd 半導体光集積回路

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US5224116A (en) * 1989-03-08 1993-06-29 Bt&D Technologies Ltd. Laser amplifier
JPH0357288A (ja) * 1989-07-17 1991-03-12 Siemens Ag 半導体レーザーを有するデバイスおよびその使用方法
US5039199A (en) * 1989-12-29 1991-08-13 At&T Bell Laboratories Lightwave transmission system having remotely pumped quasi-distributed amplifying fibers
JP2693662B2 (ja) * 1991-07-16 1997-12-24 株式会社東芝 光増幅装置
US5239607A (en) * 1992-06-23 1993-08-24 Bell Communications Research, Inc. Optical fiber amplifier with flattened gain
GB2272102B (en) * 1992-10-30 1996-02-07 Northern Telecom Ltd Optical amplifier
US5436759A (en) * 1994-06-14 1995-07-25 The Regents Of The University Of California Cross-talk free, low-noise optical amplifier

Also Published As

Publication number Publication date
CA2150950C (en) 1999-08-24
ITTO941019A1 (it) 1996-06-15
EP0717478A2 (de) 1996-06-19
US5673141A (en) 1997-09-30
JPH08184864A (ja) 1996-07-16
DE69506077T2 (de) 1999-05-06
CA2150950A1 (en) 1996-06-16
IT1267648B1 (it) 1997-02-07
EP0717478B1 (de) 1998-11-18
DE69506077D1 (de) 1998-12-24
EP0717478A3 (de) 1997-10-08
ITTO941019A0 (it) 1994-12-15
JP2640445B2 (ja) 1997-08-13

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