FR2382117A1 - Dispositif introduisant un retard de polarisation par reflexion et application a un laser - Google Patents

Dispositif introduisant un retard de polarisation par reflexion et application a un laser

Info

Publication number
FR2382117A1
FR2382117A1 FR7804433A FR7804433A FR2382117A1 FR 2382117 A1 FR2382117 A1 FR 2382117A1 FR 7804433 A FR7804433 A FR 7804433A FR 7804433 A FR7804433 A FR 7804433A FR 2382117 A1 FR2382117 A1 FR 2382117A1
Authority
FR
France
Prior art keywords
laser
substance
polarization
component
polarizer
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.)
Granted
Application number
FR7804433A
Other languages
English (en)
Other versions
FR2382117B1 (fr
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.)
University of Rochester
Original Assignee
University of Rochester
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 University of Rochester filed Critical University of Rochester
Publication of FR2382117A1 publication Critical patent/FR2382117A1/fr
Application granted granted Critical
Publication of FR2382117B1 publication Critical patent/FR2382117B1/fr
Granted 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
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/0632—Thin film lasers in which light propagates in the plane of the thin film
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • 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
    • H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2308—Amplifier arrangements, e.g. MOPA

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Polarising Elements (AREA)
  • Lasers (AREA)

Abstract

L'invention concerne une dispositif introduisant un retard de polarisation, particulièrement adapté à une utilisation dans un laser à miroirs actifs. Le laser comporte une substance à effet laser 12 dans laquelle arrive un faisceau 24 linéairement polarisé. Sur une face 16 de la substance 12, est placé un dispositif semi-transparent 22. Ce dernier est formé d'un polariseur 28 qui réfléchit la composante s de polarisation Rs et transmet la composante p de polarisation T p du faisceau incident, d'un réflecteur 32 qui réfléchit la composante p qui lui est transmise, et d'une couche d'ajustement de phase disposée entre le polariseur et le réflecteur qui permet un ajustement du déphasage entre les composantes p et s une fois celles-ci revenues dans la substance 12, le déphasage étant tel que le faisceau réfléchi est polarisé dans une direction sensiblement orthogonale à celle du faisceau incident. Le dispositif de l'invention permet d'éliminer les effets de diffraction non linéaires et donc d'augmenter la densité d'énergie que la substance laser est susceptible de supporter.
FR7804433A 1977-02-28 1978-02-16 Dispositif introduisant un retard de polarisation par reflexion et application a un laser Granted FR2382117A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/772,384 US4084883A (en) 1977-02-28 1977-02-28 Reflective polarization retarder and laser apparatus utilizing same

Publications (2)

Publication Number Publication Date
FR2382117A1 true FR2382117A1 (fr) 1978-09-22
FR2382117B1 FR2382117B1 (fr) 1984-07-06

Family

ID=25094888

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7804433A Granted FR2382117A1 (fr) 1977-02-28 1978-02-16 Dispositif introduisant un retard de polarisation par reflexion et application a un laser

Country Status (4)

Country Link
US (1) US4084883A (fr)
DE (1) DE2807104A1 (fr)
FR (1) FR2382117A1 (fr)
GB (1) GB1561876A (fr)

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IL309806A (en) 2018-09-09 2024-02-01 Lumus Ltd Optical systems that include light-guiding optical elements with two-dimensional expansion
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WO2020183229A1 (fr) 2019-03-12 2020-09-17 Lumus Ltd. Projecteur d'image
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CN118534643A (zh) 2019-06-27 2024-08-23 鲁姆斯有限公司 基于经由光导光学元件对眼睛成像来进行眼睛追踪的设备和方法
US11719947B1 (en) 2019-06-30 2023-08-08 Apple Inc. Prism beam expander
WO2021001841A1 (fr) 2019-07-04 2021-01-07 Lumus Ltd. Guide d'ondes d'image à multiplication de faisceau symétrique
AU2020395978A1 (en) 2019-12-05 2022-06-16 Lumus Ltd. Light-guide optical element employing complementary coated partial reflectors, and light-guide optical element having reduced light scattering
WO2021117033A1 (fr) 2019-12-08 2021-06-17 Lumus Ltd. Système optique avec projecteur d'image compact
CA3164587A1 (fr) 2019-12-30 2021-07-08 Lumus Ltd. Systemes optiques comprenant des elements optiques de guidage de lumiere ayant une expansion bidimensionnelle
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Citations (1)

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Publication number Priority date Publication date Assignee Title
US2409407A (en) * 1943-02-22 1946-10-15 Bausch & Lomb Reflecting element for polarized light

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US3986130A (en) * 1974-10-09 1976-10-12 University Of Rochester Laser apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409407A (en) * 1943-02-22 1946-10-15 Bausch & Lomb Reflecting element for polarized light

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol 14, no. 11, avril 1972, NEW YORK (US), D.R. GRISCHKOWSKY: 'Low-loss, doublepass system for laser amplifiers', page 3485 *

Also Published As

Publication number Publication date
GB1561876A (en) 1980-03-05
DE2807104A1 (de) 1978-08-31
FR2382117B1 (fr) 1984-07-06
US4084883A (en) 1978-04-18

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