AU2002217429A1 - Apparatus for the generation of variable duration laser pulses - Google Patents
Apparatus for the generation of variable duration laser pulsesInfo
- Publication number
- AU2002217429A1 AU2002217429A1 AU2002217429A AU1742902A AU2002217429A1 AU 2002217429 A1 AU2002217429 A1 AU 2002217429A1 AU 2002217429 A AU2002217429 A AU 2002217429A AU 1742902 A AU1742902 A AU 1742902A AU 2002217429 A1 AU2002217429 A1 AU 2002217429A1
- Authority
- AU
- Australia
- Prior art keywords
- reflection mirror
- generation
- laser pulses
- total reflection
- active medium
- 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.)
- Abandoned
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
- H01S3/105—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the mutual position or the reflecting properties of the reflectors of the cavity, e.g. by controlling the cavity length
-
- 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
- H01S3/05—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
- H01S3/08018—Mode suppression
- H01S3/0804—Transverse or lateral modes
- H01S3/0805—Transverse or lateral modes by apertures, e.g. pin-holes or knife-edges
-
- 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
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/082—Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
-
- 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
- H01S3/086—One or more reflectors having variable properties or positions for initial adjustment of the resonator
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Lasers (AREA)
- Laser Surgery Devices (AREA)
- Laser Beam Processing (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
An apparatus for the generation of variable duration laser pulses comprising an optical cavity delimited by two mirrors, one of which is a total reflection mirror and the other a partial reflection mirror, and containing an active medium with an appropriate excitation system. An optical shutter capable of inducing a Q-switching mode is provided between the total reflection mirror and the active medium. The active medium is optically connected with said total reflection mirror by optical fibre sections having different lengths and may be interchanged in the optical path so as to vary the duration of the pulses emitted by the laser when it operates in the Q-switching mode.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITFI2000A000246 | 2000-12-06 | ||
IT2000FI000246A IT1314884B1 (en) | 2000-12-06 | 2000-12-06 | EQUIPMENT FOR THE GENERATION OF LASER DURATAVARIABLE IMPULSES |
PCT/IT2001/000612 WO2002047216A2 (en) | 2000-12-06 | 2001-12-04 | Apparatus for the generation of variable duration laser pulses |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2002217429A1 true AU2002217429A1 (en) | 2002-06-18 |
Family
ID=11442007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2002217429A Abandoned AU2002217429A1 (en) | 2000-12-06 | 2001-12-04 | Apparatus for the generation of variable duration laser pulses |
Country Status (7)
Country | Link |
---|---|
US (1) | US6842474B2 (en) |
EP (1) | EP1342298B1 (en) |
AT (1) | ATE412263T1 (en) |
AU (1) | AU2002217429A1 (en) |
DE (1) | DE60136294D1 (en) |
IT (1) | IT1314884B1 (en) |
WO (1) | WO2002047216A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004042556B4 (en) * | 2004-09-02 | 2008-05-08 | Hitachi Via Mechanics, Ltd., Ebina | Laser light source, method for processing workpieces by means of pulsed laser radiation |
ITBG20090067A1 (en) * | 2009-12-23 | 2011-06-24 | Datalogic Automation Srl | LASER SYSTEM FOR THE MARKING OF METALLIC AND NON-METALLIC MATERIALS. |
DE102012113029A1 (en) * | 2012-12-21 | 2014-06-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Short-pulse laser system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3596104A (en) * | 1969-02-10 | 1971-07-27 | Us Health Education & Welfare | Method and apparatus for analyzing traveling light waves |
FR2581204B1 (en) * | 1985-04-29 | 1988-08-26 | Thomson Csf Mat Tel | 1 BY N OPTICAL SELECTOR WITH MECHANICAL CONTROL, FOR MULTIMODE FIBERS |
DE4336947A1 (en) * | 1993-03-27 | 1995-05-04 | Laser Medizin Zentrum Ggmbh Be | Long pulse laser with resonator extension using an optical waveguide |
-
2000
- 2000-12-06 IT IT2000FI000246A patent/IT1314884B1/en active
-
2001
- 2001-12-04 US US10/311,120 patent/US6842474B2/en not_active Expired - Fee Related
- 2001-12-04 WO PCT/IT2001/000612 patent/WO2002047216A2/en not_active Application Discontinuation
- 2001-12-04 AU AU2002217429A patent/AU2002217429A1/en not_active Abandoned
- 2001-12-04 AT AT01999992T patent/ATE412263T1/en not_active IP Right Cessation
- 2001-12-04 EP EP01999992A patent/EP1342298B1/en not_active Expired - Lifetime
- 2001-12-04 DE DE60136294T patent/DE60136294D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20030138004A1 (en) | 2003-07-24 |
DE60136294D1 (en) | 2008-12-04 |
WO2002047216A3 (en) | 2002-11-07 |
WO2002047216A2 (en) | 2002-06-13 |
ITFI20000246A1 (en) | 2002-06-06 |
ATE412263T1 (en) | 2008-11-15 |
IT1314884B1 (en) | 2003-01-16 |
US6842474B2 (en) | 2005-01-11 |
EP1342298A2 (en) | 2003-09-10 |
ITFI20000246A0 (en) | 2000-12-06 |
EP1342298B1 (en) | 2008-10-22 |
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