GB1279161A - Face-pumped laser device - Google Patents

Face-pumped laser device

Info

Publication number
GB1279161A
GB1279161A GB4003169A GB4003169A GB1279161A GB 1279161 A GB1279161 A GB 1279161A GB 4003169 A GB4003169 A GB 4003169A GB 4003169 A GB4003169 A GB 4003169A GB 1279161 A GB1279161 A GB 1279161A
Authority
GB
United Kingdom
Prior art keywords
prisms
elements
radiation
refractive index
pumping
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.)
Expired
Application number
GB4003169A
Inventor
Joseph Charles Almasi
William Sonderman Martin
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1279161A publication Critical patent/GB1279161A/en
Expired 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
    • 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
    • H01S3/07—Construction or shape of active medium consisting of a plurality of parts, e.g. segments
    • 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
    • H01S3/042—Arrangements for thermal management for solid state 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
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/0915—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
    • H01S3/092—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp
    • H01S3/093—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp focusing or directing the excitation energy into the active medium
    • 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
    • H01S3/0404—Air- or gas cooling, e.g. by dry nitrogen
    • 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
    • H01S3/0407—Liquid cooling, e.g. by water
    • 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
    • H01S3/0602—Crystal lasers or glass lasers
    • H01S3/0606—Crystal lasers or glass lasers with polygonal cross-section, e.g. slab, prism
    • 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
    • H01S3/0602—Crystal lasers or glass lasers
    • H01S3/0612—Non-homogeneous structure
    • 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
    • H01S3/0602—Crystal lasers or glass lasers
    • H01S3/0615—Shape of end-face

Landscapes

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

Abstract

1279161 Lasers GENERAL ELECTRIC CO 11 Aug 1969 [27 Aug 1968] 40031/69 Heading H1C Thin rectangular elements 1, Fig. 1, of laser active material such as ruby or neodymium doped glass are arranged in a zig-zag pattern, separated by and in optical contact with prisms 5, 5<SP>1</SP>, the body so formed being pumped by flash lamps 2 disposed to the sides of the axis of emitted laser radiation. Alternatively a single element optically contacting a pair of prisms may be used (not shown). Glycerine may be placed on the elements' major faces, to reduce the requirements for optical flatness of the faces. The lamps are backed by alumina reflectors 6, and mirrors 4 may be provided to prevent pumping radiation entering the edges of the elements. A filler (not shown) may be used to eliminate infra-red and ultraviolet pumping wavelengths. Prisms 5, 5<SP>1</SP> direct the pumping radiation uniformly on to the elements 1, and the body may be used as a generator by provision of mirrors 9, 10 or dielectric coatings at the ends, one such reflector being partially transmitting at laser output frequencies. The flash lamps at one side of the body may be replaced by a plane mirror. In Fig. 3, the elements are cooled by a liquid having a refractive index substantially matching that of the active material, as described in Specification 1,274,491, and alternative end prisms 5<SP>1</SP> made of a glass of refractive index at least #2 are shown. A more uniform pumping radiation density is achieved by placing the flash lamps away from the body, loss of the radiation being prevented by a light pipe, that is a totally internally reflecting glass block such as 13. In Fig. 5, right angled prisms 20 of refractive index at least #2 are used, as described in Specification 1,274,550, to concentrate pumping radiation on to the elements, but since due to optical contact at face 21 not all this radiation will be totally internally reflected at the upper and lower faces of prisms 5, 5<SP>1</SP>, these are provided with mirros such as 24. The folded path technique described in the above Specification 1,274,550 may be applied to the body by addition of suitable prisms at its ends, Fig. 6 (not shown).
GB4003169A 1968-08-27 1969-08-11 Face-pumped laser device Expired GB1279161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75565468A 1968-08-27 1968-08-27

Publications (1)

Publication Number Publication Date
GB1279161A true GB1279161A (en) 1972-06-28

Family

ID=25040036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4003169A Expired GB1279161A (en) 1968-08-27 1969-08-11 Face-pumped laser device

Country Status (3)

Country Link
DE (1) DE1941921C3 (en)
FR (1) FR2016464A1 (en)
GB (1) GB1279161A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3738921A1 (en) * 1987-05-09 1988-11-17 Fraunhofer Ges Forschung LASER AND METHOD FOR GENERATING LASER RADIATION
GB2241109A (en) * 1990-01-19 1991-08-21 Mitsubishi Electric Corp A semiconductor-laser-pumped, solid-state laser
US5257277A (en) * 1990-01-19 1993-10-26 Mitsubishi Denki Kabushiki Kaisha Semiconductor-laser-pumped, solid-state laser
CN112992650A (en) * 2021-02-09 2021-06-18 中国科学院上海光学精密机械研究所 Structure for improving pumping light transmission efficiency of integrated liquid-cooled xenon lamp

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983511A (en) * 1975-09-08 1976-09-28 Sanders Associates, Inc. Normal incidence face pumped disc laser

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3738921A1 (en) * 1987-05-09 1988-11-17 Fraunhofer Ges Forschung LASER AND METHOD FOR GENERATING LASER RADIATION
GB2241109A (en) * 1990-01-19 1991-08-21 Mitsubishi Electric Corp A semiconductor-laser-pumped, solid-state laser
US5159605A (en) * 1990-01-19 1992-10-27 Mitsubishi Denki Kabushiki Kaisha Semiconductor-laser-pumped, solid-state laser
US5257277A (en) * 1990-01-19 1993-10-26 Mitsubishi Denki Kabushiki Kaisha Semiconductor-laser-pumped, solid-state laser
GB2241109B (en) * 1990-01-19 1994-09-14 Mitsubishi Electric Corp A semiconductor-laser-pumped,solid-state laser
CN112992650A (en) * 2021-02-09 2021-06-18 中国科学院上海光学精密机械研究所 Structure for improving pumping light transmission efficiency of integrated liquid-cooled xenon lamp
CN112992650B (en) * 2021-02-09 2024-04-12 中国科学院上海光学精密机械研究所 Structure for improving pump light transmission efficiency of integrated liquid cooling xenon lamp

Also Published As

Publication number Publication date
DE1941921A1 (en) 1971-05-13
DE1941921B2 (en) 1979-10-18
FR2016464A1 (en) 1970-05-08
DE1941921C3 (en) 1980-07-10

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years