JPS566492A - Light amplifier - Google Patents

Light amplifier

Info

Publication number
JPS566492A
JPS566492A JP8120479A JP8120479A JPS566492A JP S566492 A JPS566492 A JP S566492A JP 8120479 A JP8120479 A JP 8120479A JP 8120479 A JP8120479 A JP 8120479A JP S566492 A JPS566492 A JP S566492A
Authority
JP
Japan
Prior art keywords
stage
coupling
light
state
oscillation
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
JP8120479A
Other languages
Japanese (ja)
Inventor
Koji Tomita
Toshikimi Yukigi
Tadaaki Inoue
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP8120479A priority Critical patent/JPS566492A/en
Publication of JPS566492A publication Critical patent/JPS566492A/en
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
    • H01S5/00—Semiconductor lasers
    • H01S5/50—Amplifier structures not provided for in groups H01S5/02 - H01S5/30
    • H01S5/5027—Concatenated amplifiers, i.e. amplifiers in series or cascaded
    • 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
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
    • H01S5/4031—Edge-emitting structures
    • 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
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
    • H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)
  • Led Devices (AREA)

Abstract

PURPOSE:To obtain an output signal having high S/N ratio from a light amplifier by coupling semiconductor lasers having different oscillation outputs on a light irradiating line and sequentially coupling between the respective semiconductor lasers to input signal. CONSTITUTION:A semiconductor laser (LD) 11 of the first stage is in oscillated state, and is moved slightly in the oscillated state toward an increase in the output by the coupling effect of an input light signal inputted from a fiber 2. An LD 12 of the second stage is turned on due to the increase in the oscillation due to the coupling effect of the LD 11 of the first stage to start oscillation. Although an LD 13 of the third stage is set in oscillated state, when the LD 12 of the second stage starts oscillating, it transfers its oscillating state so as to transmit the light signal due to only the delay of the coupling time.
JP8120479A 1979-06-26 1979-06-26 Light amplifier Pending JPS566492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8120479A JPS566492A (en) 1979-06-26 1979-06-26 Light amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8120479A JPS566492A (en) 1979-06-26 1979-06-26 Light amplifier

Publications (1)

Publication Number Publication Date
JPS566492A true JPS566492A (en) 1981-01-23

Family

ID=13739946

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8120479A Pending JPS566492A (en) 1979-06-26 1979-06-26 Light amplifier

Country Status (1)

Country Link
JP (1) JPS566492A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562518A2 (en) * 1992-03-23 1993-09-29 Canon Kabushiki Kaisha An optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region
WO2001028049A3 (en) * 1999-10-12 2001-11-22 Genoa Corp Low-noise, high-power optical amplifier
US6445495B1 (en) 1999-03-22 2002-09-03 Genoa Corporation Tunable-gain lasing semiconductor optical amplifier
WO2003017442A1 (en) * 2001-08-09 2003-02-27 Osram Opto Semiconductors Gmbh Multi-component laser
US6560010B1 (en) 2000-12-14 2003-05-06 Genoa Corporation Broadband gain-clamped semiconductor optical amplifier devices
US6765715B1 (en) 2001-03-09 2004-07-20 Finisar Corporation Optical 2R/3R regeneration
US6801555B1 (en) 1999-04-26 2004-10-05 Finisar Corporation Lasing semiconductor optical amplifier with output power monitor and control
US6822787B1 (en) 1999-04-26 2004-11-23 Finisar Corporation Lasing semiconductor optical amplifier with optical signal power monitor
US6829405B1 (en) 2001-03-09 2004-12-07 Finisar Corporation Reconfigurable optical add-drop multiplexer
US6853658B1 (en) 2000-12-14 2005-02-08 Finisar Corporation Optical logical circuits based on lasing semiconductor optical amplifiers
US6891664B2 (en) 1999-03-22 2005-05-10 Finisar Corporation Multistage tunable gain optical amplifier
US6909536B1 (en) 2001-03-09 2005-06-21 Finisar Corporation Optical receiver including a linear semiconductor optical amplifier
US6943939B1 (en) 2002-03-19 2005-09-13 Finisar Corporation Optical amplifier with damped relaxation oscillation
US7046434B1 (en) 2000-12-14 2006-05-16 Finisar Corporation Optical crossbar using lasing semiconductor optical amplifiers
US7065300B1 (en) 2000-12-14 2006-06-20 Finsiar Corporation Optical transmitter including a linear semiconductor optical amplifier
US7110169B1 (en) 2000-12-14 2006-09-19 Finisar Corporation Integrated optical device including a vertical lasing semiconductor optical amplifier
US7149236B1 (en) 2000-05-26 2006-12-12 Finisar Corporation Optoelectronic semiconductor device

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562518A2 (en) * 1992-03-23 1993-09-29 Canon Kabushiki Kaisha An optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region
US5521754A (en) * 1992-03-23 1996-05-28 Canon Kabushiki Kaisha Optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region
US5608572A (en) * 1992-03-23 1997-03-04 Canon Kabushiki Kaisha Optical apparatus and a method using the apparatus, which utilizes the occurrence of a change in a both-end voltage of an amplifying region
US6445495B1 (en) 1999-03-22 2002-09-03 Genoa Corporation Tunable-gain lasing semiconductor optical amplifier
US6512629B1 (en) 1999-03-22 2003-01-28 Genoa Corporation Low-noise, high-power optical amplifier
US6704138B2 (en) 1999-03-22 2004-03-09 Finisar Corporation Low-noise, high-power optical amplifier
US6891664B2 (en) 1999-03-22 2005-05-10 Finisar Corporation Multistage tunable gain optical amplifier
US7027213B2 (en) 1999-04-26 2006-04-11 Finisar Corporation Clock recovery based on VLSOA power monitoring
US6801555B1 (en) 1999-04-26 2004-10-05 Finisar Corporation Lasing semiconductor optical amplifier with output power monitor and control
US6822787B1 (en) 1999-04-26 2004-11-23 Finisar Corporation Lasing semiconductor optical amplifier with optical signal power monitor
WO2001028049A3 (en) * 1999-10-12 2001-11-22 Genoa Corp Low-noise, high-power optical amplifier
US7149236B1 (en) 2000-05-26 2006-12-12 Finisar Corporation Optoelectronic semiconductor device
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
US7126731B1 (en) 2000-12-14 2006-10-24 Finisar Corporation Optical latch based on lasing semiconductor optical amplifiers
US7113329B2 (en) 2000-12-14 2006-09-26 Finisar Corporation Optical logical circuits based on lasing semiconductor optical amplifiers
US7110169B1 (en) 2000-12-14 2006-09-19 Finisar Corporation Integrated optical device including a vertical lasing semiconductor optical amplifier
US7065300B1 (en) 2000-12-14 2006-06-20 Finsiar Corporation Optical transmitter including a linear semiconductor optical amplifier
US7046434B1 (en) 2000-12-14 2006-05-16 Finisar Corporation Optical crossbar using lasing semiconductor optical amplifiers
US6829405B1 (en) 2001-03-09 2004-12-07 Finisar Corporation Reconfigurable optical add-drop multiplexer
US7009760B2 (en) 2001-03-09 2006-03-07 Finisar Corporation Optical 2R/3R regeneration
US6909536B1 (en) 2001-03-09 2005-06-21 Finisar Corporation Optical receiver including a linear semiconductor optical amplifier
US6765715B1 (en) 2001-03-09 2004-07-20 Finisar Corporation Optical 2R/3R regeneration
US7130500B2 (en) 2001-03-09 2006-10-31 Finisar Corporation Reconfigurable optical add-drop multiplexer
WO2003017442A1 (en) * 2001-08-09 2003-02-27 Osram Opto Semiconductors Gmbh Multi-component laser
US7260129B2 (en) 2001-08-09 2007-08-21 Osram Opto Semiconductors Gmbh Multipartite laser
US6943939B1 (en) 2002-03-19 2005-09-13 Finisar Corporation Optical amplifier with damped relaxation oscillation

Similar Documents

Publication Publication Date Title
JPS566492A (en) Light amplifier
JPS5360651A (en) Semiconductor laser with optical fibers
ATE83346T1 (en) OPTICAL SIGNAL REGENERATOR.
JPS5244192A (en) Optical integrated circuit
EP0422834A3 (en) Simultaneous generation of laser radiation at two different frequencies
JPS5727087A (en) Wavelength sweeping laser
ES2040748T3 (en) OPTICALLY CONTROLLED SELECTOR.
JPS51149034A (en) Propagation mode converting optical coupler
JPS5448415A (en) Optical relay unit
JPS57124490A (en) Coupler for semiconductor laser and optical fiber
JPS5239393A (en) Laser oscillation device
JPS5638881A (en) Laser device
JPS54141590A (en) Photo output stabilizing circuit
KOUJI et al. Light amplifier
JPS6449288A (en) Two-wavelength laser device
JPS57129037A (en) Optical transmission device
JPS57155789A (en) Semiconductor laser modulator
JPS57121340A (en) Optical transmission device
JPS54122986A (en) Semiconductor laser device
JPS5683089A (en) Light modulation system
JPS5229185A (en) Semiconductor laser
JPS55166987A (en) Laser device
JPS57139979A (en) Pulse laser device with stabilised output
JPS57115042A (en) High power optical transmission system
JPS5310927A (en) Bias light stabilizing circuit for pickup tube