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WO2002029941A3 - Devices for varying the pulse duration and/or pulse energy in a passively q-switched laser - Google Patents

Devices for varying the pulse duration and/or pulse energy in a passively q-switched laser Download PDF

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Publication number
WO2002029941A3
WO2002029941A3 PCT/DE2001/003816 DE0103816W WO0229941A3 WO 2002029941 A3 WO2002029941 A3 WO 2002029941A3 DE 0103816 W DE0103816 W DE 0103816W WO 0229941 A3 WO0229941 A3 WO 0229941A3
Authority
WO
WIPO (PCT)
Prior art keywords
pulse
laser
passively
controlling
switched laser
Prior art date
Application number
PCT/DE2001/003816
Other languages
German (de)
French (fr)
Other versions
WO2002029941A2 (en
Inventor
Karl-Heinz Schoenborn
Original Assignee
Clyxon Laser Gmbh
Karl-Heinz Schoenborn
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
Priority claimed from DE2000149775 external-priority patent/DE10049775A1/en
Priority claimed from DE2000149770 external-priority patent/DE10049770A1/en
Application filed by Clyxon Laser Gmbh, Karl-Heinz Schoenborn filed Critical Clyxon Laser Gmbh
Publication of WO2002029941A2 publication Critical patent/WO2002029941A2/en
Publication of WO2002029941A3 publication Critical patent/WO2002029941A3/en

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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
    • H01S3/1061—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using a variable absorption device
    • 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
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/08013—Resonator comprising a fibre, e.g. for modifying dispersion or repetition rate
    • 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
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/113—Q-switching using intracavity saturable absorbers
    • 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
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H01S3/1123—Q-switching
    • H01S3/127—Plural Q-switches

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

The invention relates to a device for controlling the pulse duration and/or the pulse energy of a laser pulse in a passively Q-switched laser, or for controlling the repetition rate of the individual pulses of the laser in continuous mode. Said device is characterised by a control mechanism for the mechanical adjustment of the Q-switch system. The invention also relates to a device for controlling the pulse duration and/or the pulse energy of a laser pulse in a passively Q-switched laser comprising a fibre-optic resonator extension, or for controlling the repetition rate of the individual pulses of the laser in continuous mode. The device is characterised in that the control is achieved by the mechanical adjustment of the resonator array. The invention thus provides lasers, whose temporal power emission is variable.
PCT/DE2001/003816 2000-10-03 2001-10-02 Devices for varying the pulse duration and/or pulse energy in a passively q-switched laser WO2002029941A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10049775.6 2000-10-03
DE10049770.5 2000-10-03
DE2000149775 DE10049775A1 (en) 2000-10-03 2000-10-03 Device for controlling the pulse duration and/or pulse energy of a laser pulse in a passively Q-switched laser used in medical applications comprises a control mechanism for mechanically adjusting the Q-switch system
DE2000149770 DE10049770A1 (en) 2000-10-03 2000-10-03 Device for controlling the pulse duration and/or pulse energy of a laser pulse in a passively Q-switched laser used in medical applications comprises a control mechanism for mechanically adjusting the Q-switch system

Publications (2)

Publication Number Publication Date
WO2002029941A2 WO2002029941A2 (en) 2002-04-11
WO2002029941A3 true WO2002029941A3 (en) 2002-11-21

Family

ID=26007294

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/003816 WO2002029941A2 (en) 2000-10-03 2001-10-02 Devices for varying the pulse duration and/or pulse energy in a passively q-switched laser

Country Status (1)

Country Link
WO (1) WO2002029941A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100395925C (en) * 2006-04-07 2008-06-18 清华大学 A Q-switching device for generating all-fiber Q-switched laser by using the change of butt loss
US9696995B2 (en) 2009-12-30 2017-07-04 International Business Machines Corporation Parallel execution unit that extracts data parallelism at runtime

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD90401A (en) *
US3513410A (en) * 1967-10-10 1970-05-19 Union Carbide Corp Laser beam power density control for q-switching
US3560077A (en) * 1968-02-19 1971-02-02 Hughes Aircraft Co Variable transmission passive q-switch
US4852115A (en) * 1986-12-05 1989-07-25 Esa Viherkoski Laser head
DE4310023A1 (en) * 1993-03-27 1994-09-29 Laser Medizin Zentrum Ggmbh Be Q-switched long-pulse solid-state laser having fibre-optic resonator extension
FR2713836A1 (en) * 1993-07-28 1995-06-16 Atys Sarl Pulse laser with two modes of action.
US5963575A (en) * 1993-03-27 1999-10-05 Clyxon Laser Fur Mediziner GmbH Q-switched laser system, in particular for laser lithotripsy
WO2000055947A1 (en) * 1999-03-16 2000-09-21 Raytheon Company Dual cavity laser resonator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD90401A (en) *
US3513410A (en) * 1967-10-10 1970-05-19 Union Carbide Corp Laser beam power density control for q-switching
US3560077A (en) * 1968-02-19 1971-02-02 Hughes Aircraft Co Variable transmission passive q-switch
US4852115A (en) * 1986-12-05 1989-07-25 Esa Viherkoski Laser head
DE4310023A1 (en) * 1993-03-27 1994-09-29 Laser Medizin Zentrum Ggmbh Be Q-switched long-pulse solid-state laser having fibre-optic resonator extension
US5963575A (en) * 1993-03-27 1999-10-05 Clyxon Laser Fur Mediziner GmbH Q-switched laser system, in particular for laser lithotripsy
FR2713836A1 (en) * 1993-07-28 1995-06-16 Atys Sarl Pulse laser with two modes of action.
WO2000055947A1 (en) * 1999-03-16 2000-09-21 Raytheon Company Dual cavity laser resonator

Also Published As

Publication number Publication date
WO2002029941A2 (en) 2002-04-11

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