FR3108799A1 - T-shaped laser pumping device - Google Patents

T-shaped laser pumping device Download PDF

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Publication number
FR3108799A1
FR3108799A1 FR2100384A FR2100384A FR3108799A1 FR 3108799 A1 FR3108799 A1 FR 3108799A1 FR 2100384 A FR2100384 A FR 2100384A FR 2100384 A FR2100384 A FR 2100384A FR 3108799 A1 FR3108799 A1 FR 3108799A1
Authority
FR
France
Prior art keywords
laser medium
concentrator
face
absorption
laser
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
FR2100384A
Other languages
French (fr)
Inventor
François Balembois
Pierre PICHON
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.)
Inst Optique Theorique Appliquee
Institut Optique Theorique Appliquee
Centre National de la Recherche Scientifique CNRS
Universite Paris Saclay
Original Assignee
Inst Optique Theorique Appliquee
Institut Optique Theorique Appliquee
Centre National de la Recherche Scientifique CNRS
Universite Paris Saclay
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 Inst Optique Theorique Appliquee, Institut Optique Theorique Appliquee, Centre National de la Recherche Scientifique CNRS, Universite Paris Saclay filed Critical Inst Optique Theorique Appliquee
Priority to PCT/EP2021/057467 priority Critical patent/WO2021191221A1/en
Priority to EP21713947.6A priority patent/EP4128452A1/en
Priority to US17/913,424 priority patent/US20230112416A1/en
Priority to JP2022558165A priority patent/JP2023518606A/en
Publication of FR3108799A1 publication Critical patent/FR3108799A1/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
    • 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
    • H01S3/0933—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of a semiconductor, e.g. light emitting diode
    • 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
    • H01S3/0604—Crystal lasers or glass lasers in the form of a plate or disc
    • 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
    • H01S3/08095—Zig-zag travelling beam through 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
    • H01S3/05—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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/1601—Solid materials characterised by an active (lasing) ion
    • H01S3/162—Solid materials characterised by an active (lasing) ion transition metal
    • H01S3/1623—Solid materials characterised by an active (lasing) ion transition metal chromium, e.g. Alexandrite
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/163—Solid materials characterised by a crystal matrix
    • H01S3/1631—Solid materials characterised by a crystal matrix aluminate
    • H01S3/1633—BeAl2O4, i.e. Chrysoberyl
    • 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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/16—Solid materials
    • H01S3/163—Solid materials characterised by a crystal matrix
    • H01S3/1645—Solid materials characterised by a crystal matrix halide
    • H01S3/1648—Solid materials characterised by a crystal matrix halide with the formula XYZF6 (Colquiriite structure), wherein X is Li, Na, K or Rb, Y is Mg, Ca, Sr, Cd or Ba and Z is Al, Sc or Ga

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Lasers (AREA)

Abstract

Ensemble de pompage laser (1) comprenant : un milieu laser (ML) solide parallélépipédique présentant une forme de plaque selon un plan horizontal (xy) et une épaisseur , ledit milieu laser présentant une bande spectrale d’absorption et un coefficient d’absorption associé ;au moins un module d’émission de lumière (ME) destiné au pompage du milieu laser comprenant un cristal parallélépipédique fluorescent dit concentrateur (CL), présentant une forme de plaque d’épaisseur ledit concentrateur présentant au moins une face d’éclairement (SI1, SI2) illuminée par un rayonnement électroluminescent (Ld) et étant configuré pour absorber ledit rayonnement électroluminescent (Ld) et émettre un rayonnement de fluorescence dans une gamme spectrale présentant un recouvrement avec ladite bande spectrale d’absorption, ledit concentrateur présentant une face émettrice (SE); ledit concentrateur étant en contact optique par ladite face émettrice (SE) à une face réceptrice (SR, SR1, SR2) du milieu laser, ledit concentrateur étant disposé perpendiculairement au milieu laser de telle sorte que la ou les faces d’éclairement (SI1, SI2) soient perpendiculaires à ladite face réceptrice de manière à réaliser un pompage transverse dudit milieu laser, le contact optique étant adapté pour qu’une portion (Lg) dudit rayonnement de fluorescence piégée dans le concentrateur (CL) par réflexion totale interne puisse passer dans le milieu laser (ML) en traversant ladite face émettrice (SE), et être piégée dans le milieu laser ML par réflexion totale interne, ladite épaisseur du milieu laser étant telle que avec une longueur d’absorption du milieu laser. [Fig. 3A]Laser pump assembly (1) comprising: a parallelepipedal solid laser medium (ML) having a plate shape along a horizontal plane (xy) and a thickness, said laser medium having an absorption spectral band and an associated absorption coefficient ; at least one light emitting module (ME) intended for pumping the laser medium comprising a parallelepipedal fluorescent crystal called concentrator (CL), having the shape of a thick plate, said concentrator having at least one illumination face (SI1 , SI2) illuminated by electroluminescent radiation (Ld) and being configured to absorb said electroluminescent radiation (Ld) and emit fluorescence radiation in a spectral range having an overlap with said absorption spectral band, said concentrator having an emitting face ( SE); said concentrator being in optical contact via said emitting face (SE) with a receiving face (SR, SR1, SR2) of the laser medium, said concentrator being arranged perpendicular to the laser medium such that the illumination face (s) (SI1, SI2) are perpendicular to said receiving face so as to perform transverse pumping of said laser medium, the optical contact being adapted so that a portion (Lg) of said fluorescence radiation trapped in the concentrator (CL) by total internal reflection can pass into the laser medium (ML) by passing through said emitting face (SE), and being trapped in the laser medium ML by total internal reflection, said thickness of the laser medium being such that with an absorption length of the laser medium. [Fig. 3A]

FR2100384A 2020-03-24 2021-01-15 T-shaped laser pumping device Pending FR3108799A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/EP2021/057467 WO2021191221A1 (en) 2020-03-24 2021-03-23 T-shaped laser pumping device
EP21713947.6A EP4128452A1 (en) 2020-03-24 2021-03-23 T-shaped laser pumping device
US17/913,424 US20230112416A1 (en) 2020-03-24 2021-03-23 T-shaped laser pumping device
JP2022558165A JP2023518606A (en) 2020-03-24 2021-03-23 T-shaped laser excitation device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2002852 2020-03-24
FR2002852A FR3108798A1 (en) 2020-03-24 2020-03-24 T-shaped laser pumping device

Publications (1)

Publication Number Publication Date
FR3108799A1 true FR3108799A1 (en) 2021-10-01

Family

ID=71784172

Family Applications (2)

Application Number Title Priority Date Filing Date
FR2002852A Pending FR3108798A1 (en) 2020-03-24 2020-03-24 T-shaped laser pumping device
FR2100384A Pending FR3108799A1 (en) 2020-03-24 2021-01-15 T-shaped laser pumping device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR2002852A Pending FR3108798A1 (en) 2020-03-24 2020-03-24 T-shaped laser pumping device

Country Status (1)

Country Link
FR (2) FR3108798A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3045965B1 (en) 2015-12-18 2018-05-11 Effilux CONCENTRATED LIGHT EMITTING MODULE AND LASER DEVICE USING SUCH A MODULE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3045965B1 (en) 2015-12-18 2018-05-11 Effilux CONCENTRATED LIGHT EMITTING MODULE AND LASER DEVICE USING SUCH A MODULE

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
ADRIEN BARBET ET AL: "Light-emitting diode pumped luminescent concentrators: a new opportunity for low-cost solid-state lasers", OPTICA, vol. 3, no. 5, 2 May 2016 (2016-05-02), pages 465, XP055648887, DOI: 10.1364/OPTICA.3.000465 *
BARBETADRIEN ET AL.: "Light-emitting diode pumped luminescent concentrators: a new opportunity for low-cost solid-state lasers", OPTICA, vol. 3, no. 5, 2016, pages 465 - 468, XP055648887, DOI: 10.1364/OPTICA.3.000465
PICHON PIERRE ET AL: "LED-pumped Alexandrite laser oscillator and amplifier", PROCEEDINGS OF SPIE; [PROCEEDINGS OF SPIE ISSN 0277-786X VOLUME 10524], SPIE, US, vol. 10511, 15 February 2018 (2018-02-15), pages 105111J - 105111J, XP060100090, ISBN: 978-1-5106-1533-5, DOI: 10.1117/12.2287808 *
PIERRE PICHON ET AL: "Light-emitting diodes: a new paradigm for Ti:sapphire pumping", OPTICA, vol. 5, no. 10, 20 October 2018 (2018-10-20), pages 1236, XP055750262, DOI: 10.1364/OPTICA.5.001236 *

Also Published As

Publication number Publication date
FR3108798A1 (en) 2021-10-01

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Effective date: 20220128

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