WO2000025393A3 - Gas laser - Google Patents

Gas laser Download PDF

Info

Publication number
WO2000025393A3
WO2000025393A3 PCT/IL1999/000566 IL9900566W WO0025393A3 WO 2000025393 A3 WO2000025393 A3 WO 2000025393A3 IL 9900566 W IL9900566 W IL 9900566W WO 0025393 A3 WO0025393 A3 WO 0025393A3
Authority
WO
WIPO (PCT)
Prior art keywords
mirror surface
annular
operative
thickness
diameter
Prior art date
Application number
PCT/IL1999/000566
Other languages
French (fr)
Other versions
WO2000025393A2 (en
Inventor
Oded Anner
Shlomo Turgeman
Haim Mukatel
Original Assignee
Lightlase Ltd
Oded Anner
Shlomo Turgeman
Haim Mukatel
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 Lightlase Ltd, Oded Anner, Shlomo Turgeman, Haim Mukatel filed Critical Lightlase Ltd
Priority to JP2000578879A priority Critical patent/JP2002528918A/en
Priority to AU64855/99A priority patent/AU6485599A/en
Priority to EP99952771A priority patent/EP1147580A4/en
Publication of WO2000025393A2 publication Critical patent/WO2000025393A2/en
Publication of WO2000025393A3 publication Critical patent/WO2000025393A3/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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • H01S3/0385—Shape
    • 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
    • H01S3/08059—Constructional details of the reflector, e.g. shape
    • 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
    • H01S3/02—Constructional details
    • 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
    • H01S3/02—Constructional details
    • H01S3/04—Arrangements for thermal management
    • H01S3/041—Arrangements for thermal management for gas 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
    • H01S3/05—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
    • H01S3/0813—Configuration of resonator
    • H01S3/0815—Configuration of resonator having 3 reflectors, e.g. V-shaped resonators
    • 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
    • H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
    • H01S3/0971—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited

Landscapes

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

Abstract

A gas laser including an annular optical cavity defined by a pair of coaxial spaced electrodes (120, 122) which produces an annular coherent beam of a first diameter and a first thickness. A mirror structure is located at one end of the annular optical cavity and includes a first mirror surface (222) which is operative to decrease the diameter of the annular coherent beam from the first diameter and to expand the thickness of the annular coherent beam from the first thickness, a second mirror surface (220) which is operative to focus a beam reflected by the first mirror surface to a location located interiorly of the pair of coaxial spaced electrodes, a third mirror surface (230) located at an opposite end of the annular optical cavity, and an output coupler (114) operative to receive, reflect and transmit a beam reflected by the second mirror surface.
PCT/IL1999/000566 1998-10-26 1999-10-26 Gas laser WO2000025393A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2000578879A JP2002528918A (en) 1998-10-26 1999-10-26 Gas laser
AU64855/99A AU6485599A (en) 1998-10-26 1999-10-26 Gas laser
EP99952771A EP1147580A4 (en) 1998-10-26 1999-10-26 Gas laser

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL126765 1998-10-26
IL12676598A IL126765A0 (en) 1998-10-26 1998-10-26 Gas laser

Publications (2)

Publication Number Publication Date
WO2000025393A2 WO2000025393A2 (en) 2000-05-04
WO2000025393A3 true WO2000025393A3 (en) 2000-08-10

Family

ID=11072071

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL1999/000566 WO2000025393A2 (en) 1998-10-26 1999-10-26 Gas laser

Country Status (5)

Country Link
EP (1) EP1147580A4 (en)
JP (1) JP2002528918A (en)
AU (1) AU6485599A (en)
IL (1) IL126765A0 (en)
WO (1) WO2000025393A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3357341B2 (en) * 2000-05-19 2002-12-16 知夫 藤岡 Cylindrical straight slab type gas laser
JP3760111B2 (en) * 2000-05-19 2006-03-29 知夫 藤岡 Cylindrical straight slab type gas laser

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800567A (en) * 1986-01-29 1989-01-24 Fanuc Ltd High-frequency-discharge excited gas laser
US5084896A (en) * 1988-08-04 1992-01-28 L'air Liquide, Societe Anonyme Pour L'etude Ei L'exploitation Des Procedes Georges Claude Apparatus for emitting a laser beam
US5479428A (en) * 1992-01-22 1995-12-26 Mitsubishi Denki Kabushiki Kaisha Laser apparatus
US5590147A (en) * 1994-12-19 1996-12-31 The Morgan Curcible Company Plc Side-pumped lasers

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4232843A1 (en) * 1992-09-30 1994-03-31 Siemens Ag Diffusion-cooled CO¶2¶ ribbon laser with reduced ignition voltage
DE4416900C2 (en) * 1994-05-13 2001-02-01 Deutsch Zentr Luft & Raumfahrt Gas discharge structure
DE4424726C1 (en) * 1994-07-13 1996-02-01 Rofin Sinar Laser Gmbh Coaxial waveguide laser with stable resonator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800567A (en) * 1986-01-29 1989-01-24 Fanuc Ltd High-frequency-discharge excited gas laser
US5084896A (en) * 1988-08-04 1992-01-28 L'air Liquide, Societe Anonyme Pour L'etude Ei L'exploitation Des Procedes Georges Claude Apparatus for emitting a laser beam
US5479428A (en) * 1992-01-22 1995-12-26 Mitsubishi Denki Kabushiki Kaisha Laser apparatus
US5590147A (en) * 1994-12-19 1996-12-31 The Morgan Curcible Company Plc Side-pumped lasers

Also Published As

Publication number Publication date
WO2000025393A2 (en) 2000-05-04
JP2002528918A (en) 2002-09-03
EP1147580A4 (en) 2002-07-24
AU6485599A (en) 2000-05-15
IL126765A0 (en) 1999-08-17
EP1147580A2 (en) 2001-10-24

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