BR9806098A - Amplificador óptico possuindo ganho dinamicamente modular - Google Patents

Amplificador óptico possuindo ganho dinamicamente modular

Info

Publication number
BR9806098A
BR9806098A BR9806098-8A BR9806098A BR9806098A BR 9806098 A BR9806098 A BR 9806098A BR 9806098 A BR9806098 A BR 9806098A BR 9806098 A BR9806098 A BR 9806098A
Authority
BR
Brazil
Prior art keywords
gain element
transitions
stark
active gain
electron
Prior art date
Application number
BR9806098-8A
Other languages
English (en)
Inventor
Salim N Jabr
Original Assignee
Ditech Corp
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 Ditech Corp filed Critical Ditech Corp
Publication of BR9806098A publication Critical patent/BR9806098A/pt

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
    • 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
    • H01S3/094096—Multi-wavelength 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
    • H01S3/1301—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers
    • H01S3/13013—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers by controlling the optical 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
    • 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/1001—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by controlling the optical pumping

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
  • Optical Communication System (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

<B>AMPLIFICADOR óPTICO POSSUINDO GANHO DINAMICAMENTE MODULAR<D> Sistema e Método são descritos para ajustar o perfil de ganho de um amplificador óptico incluindo uma bomba a laser e um elemento de ganho ativo por seletivamente controle da quantidade de eléctrons de pelo menos um subnível Stark dos níveis de energia eletrónicos do elemento de ganho ativo do amplificador óptico. Por dinamicamente controle da quantidade de eléctrons dos subníveis de Stark selecionados o perfil de ganho do elemento de ganho ativo pode ser nivelado. Em um primeiro método para controle da quantidade de transições de dois fótons da eléctrons são iniciados entre um par de subníveis de Stark do mesmo nível de energia do elemento de ganho ativo. Transições de dois fótons são estimulados por duas bombas de laseres operando a comprimentos de onda que diferença aproxima a diferença de energia no par de subníveis de Stark entre eléctrons que estão para serem movidos. Em um segundo método para controle da quantidade de eléctrons de transições de fóton único são inicializados entre um para de níveis de Stark de diferentes níveis de energia do elemento de ganho ativo. Transições de fóton único são estimulados por uma bomba a laser adicional operando a uma diferença de freq³ência que aproxima a diferença no par de níveis de energia. Alternativamente, transições de fóton único são estimulados por operação da bomba a laser do amplificador a um comprimento de onda selecionado de modo que simultaneanente causa transições de eléctrons de um nível baixo do elemento de ganho ativo para um dos níveis de maior energia e transições de eléctrons de um subnível de Stark selecionado de um nível de laser inferior para um nível de energia ainda mais superior.
BR9806098-8A 1997-08-20 1998-08-18 Amplificador óptico possuindo ganho dinamicamente modular BR9806098A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/915,129 US5861981A (en) 1997-08-20 1997-08-20 Optical amplifier having dynamically shaped gain
PCT/US1998/017137 WO1999009622A2 (en) 1997-08-20 1998-08-18 Optical amplifier having dynamically shaped gain

Publications (1)

Publication Number Publication Date
BR9806098A true BR9806098A (pt) 2001-10-02

Family

ID=25435264

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9806098-8A BR9806098A (pt) 1997-08-20 1998-08-18 Amplificador óptico possuindo ganho dinamicamente modular

Country Status (8)

Country Link
US (1) US5861981A (pt)
EP (1) EP0932921B1 (pt)
CN (1) CN1136637C (pt)
AT (1) ATE271272T1 (pt)
AU (1) AU8913698A (pt)
BR (1) BR9806098A (pt)
DE (1) DE69825026T2 (pt)
WO (1) WO1999009622A2 (pt)

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US6760148B2 (en) 1998-03-24 2004-07-06 Xtera Communications, Inc. Nonlinear polarization amplifiers in nonzero dispersion shifted fiber
US6356384B1 (en) 1998-03-24 2002-03-12 Xtera Communications Inc. Broadband amplifier and communication system
CA2318886A1 (en) * 1998-03-31 1999-10-07 Corning Incorporated Optical amplifier with wide flat gain dynamic range
SE522622C2 (sv) * 1998-04-01 2004-02-24 Ericsson Telefon Ab L M Optisk fiberförstärkare med styrd förstärkning
CA2335289C (en) 1998-06-16 2009-10-13 Mohammed Nazrul Islam Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity
US6335820B1 (en) 1999-12-23 2002-01-01 Xtera Communications, Inc. Multi-stage optical amplifier and broadband communication system
US6574037B2 (en) 1998-06-16 2003-06-03 Xtera Communications, Inc. All band amplifier
US6359725B1 (en) 1998-06-16 2002-03-19 Xtera Communications, Inc. Multi-stage optical amplifier and broadband communication system
US6236487B1 (en) * 1998-07-21 2001-05-22 Corvis Corporation Optical communication control system
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US6344922B1 (en) 1998-07-21 2002-02-05 Corvis Corporation Optical signal varying devices
US6421170B1 (en) * 1998-09-18 2002-07-16 Corning Incorporated Gain control and shaping of EDFAs via dual cavity gain control
US6567430B1 (en) 1998-09-21 2003-05-20 Xtera Communications, Inc. Raman oscillator including an intracavity filter and amplifiers utilizing same
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US6563614B1 (en) * 1999-05-21 2003-05-13 Corvis Corporation Optical transmission system and amplifier control apparatuses and methods
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FR2800219B1 (fr) * 1999-10-22 2006-06-30 Algety Telecom Procede d'ajustement de puissance pour un systeme de transmission optique a multiplexage en longueur d'onde
ATE443359T1 (de) 2000-01-12 2009-10-15 Xtera Communications Inc Zweiseitig gepumpter ramanverstärker
US6421481B1 (en) 2000-02-04 2002-07-16 Zolo Technologies, Inc. Apparatus and method for producing a flat-topped filter response for diffraction grating (De) multiplexer
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US6411757B1 (en) * 2000-02-14 2002-06-25 Agere Systems Guardian Corp. Article comprising a waveguide structure with improved pump utilization
US6344925B1 (en) 2000-03-03 2002-02-05 Corvis Corporation Optical systems and methods and optical amplifiers for use therein
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US6633430B1 (en) 2001-02-15 2003-10-14 Onetta, Inc. Booster amplifier with spectral control for optical communications systems
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US6529316B1 (en) 2001-05-03 2003-03-04 Onetta, Inc. Optical network equipment with optical channel monitor and dynamic spectral filter alarms
US6483631B1 (en) 2001-06-05 2002-11-19 Onetta, Inc. Optical amplifier spectral tilt controllers
US6545800B1 (en) 2001-06-05 2003-04-08 Onetta, Inc. Depolarizers for optical channel monitors
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Also Published As

Publication number Publication date
AU8913698A (en) 1999-03-08
CN1136637C (zh) 2004-01-28
CN1237281A (zh) 1999-12-01
EP0932921A4 (en) 2003-01-02
WO1999009622A2 (en) 1999-02-25
EP0932921B1 (en) 2004-07-14
US5861981A (en) 1999-01-19
EP0932921A2 (en) 1999-08-04
DE69825026D1 (de) 2004-08-19
DE69825026T2 (de) 2004-11-11
WO1999009622A3 (en) 1999-04-15
ATE271272T1 (de) 2004-07-15

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 5A, 6A,7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1887 DE 06/03/2007.