[go: up one dir, main page]

WO1999048197A3 - Piezoelectric difraction grating light steering device - Google Patents

Piezoelectric difraction grating light steering device Download PDF

Info

Publication number
WO1999048197A3
WO1999048197A3 PCT/US1999/005694 US9905694W WO9948197A3 WO 1999048197 A3 WO1999048197 A3 WO 1999048197A3 US 9905694 W US9905694 W US 9905694W WO 9948197 A3 WO9948197 A3 WO 9948197A3
Authority
WO
WIPO (PCT)
Prior art keywords
grating
piezoelectric
diffraction
steering device
light
Prior art date
Application number
PCT/US1999/005694
Other languages
French (fr)
Other versions
WO1999048197A2 (en
Inventor
Robert Arnold
Scott Bloom
Original Assignee
Trex Communications Corp
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 Trex Communications Corp filed Critical Trex Communications Corp
Priority to EP99916137A priority Critical patent/EP1086529A2/en
Priority to AU34514/99A priority patent/AU3451499A/en
Publication of WO1999048197A2 publication Critical patent/WO1999048197A2/en
Publication of WO1999048197A3 publication Critical patent/WO1999048197A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1828—Diffraction gratings having means for producing variable diffraction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

A piezoelectric diffraction grating steering device including a piezoelectric substrate having an attached or integrally formed diffraction grating. When an electric field is applied to the piezoelectric substrate, the piezoelectric actuator stretches the grating, changing the periodicity of the grating, thereby changing the angle of diffraction of the grating. The preferred grating is a high efficiency reflection type grating which diffracts a maximum amount of light into the first order mode, minimizing the amount of light in the zero order and higher order modes. The invention may be used in any application in which fine control over the angle of diffraction of a light beam is required, and may have an adjustment rate in excess of 100 KHz. One application is as a beam steering element in a free-space laser communication system.
PCT/US1999/005694 1998-03-16 1999-03-16 Piezoelectric difraction grating light steering device WO1999048197A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99916137A EP1086529A2 (en) 1998-03-16 1999-03-16 Piezoelectric difraction grating light steering device
AU34514/99A AU3451499A (en) 1998-03-16 1999-03-16 Piezoelectric difraction grating light steering device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4259998A 1998-03-16 1998-03-16
US09/042,599 1998-03-16

Publications (2)

Publication Number Publication Date
WO1999048197A2 WO1999048197A2 (en) 1999-09-23
WO1999048197A3 true WO1999048197A3 (en) 1999-12-16

Family

ID=21922787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/005694 WO1999048197A2 (en) 1998-03-16 1999-03-16 Piezoelectric difraction grating light steering device

Country Status (3)

Country Link
EP (1) EP1086529A2 (en)
AU (1) AU3451499A (en)
WO (1) WO1999048197A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9268110B2 (en) 2009-03-13 2016-02-23 Optotune Ag Lens system and method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6577786B1 (en) * 2000-06-02 2003-06-10 Digital Lightwave, Inc. Device and method for optical performance monitoring in an optical communications network
WO2007082952A1 (en) * 2006-01-21 2007-07-26 Csem Centre Suisse D'electronique Et De Microtechnique Sa Recherche Et Développement Microfabricated blazed grating, devices in which such a grating is employed and fabrication process
EP1816493A1 (en) 2006-02-07 2007-08-08 ETH Zürich Tunable diffraction grating
US20230273446A1 (en) * 2020-08-19 2023-08-31 Nippon Telegraph And Telephone Corporation Diffraction Element Device
CN112859223A (en) * 2021-01-25 2021-05-28 上海交通大学 Surface-corrugated mechanical composite grating system and tuning method
US11550163B2 (en) 2021-04-05 2023-01-10 Apple Inc. Tunable blazed grating
US12222491B2 (en) 2021-05-27 2025-02-11 Apple Inc. Electrostatic actuation for diffractive optical devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573463A (en) * 1967-11-01 1971-04-06 Hughes Aircraft Co Laser heterodyne transceiver communication system with afc
US4716444A (en) * 1985-08-01 1987-12-29 The United States Of America As Represented By The Secretary Of The Army Optical radar transceiver control apparatus
US4736132A (en) * 1987-09-14 1988-04-05 Rockwell International Corporation Piezoelectric deformable mirrors and gratings
US5379310A (en) * 1993-05-06 1995-01-03 Board Of Trustees Of The University Of Illinois External cavity, multiple wavelength laser transmitter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3573463A (en) * 1967-11-01 1971-04-06 Hughes Aircraft Co Laser heterodyne transceiver communication system with afc
US4716444A (en) * 1985-08-01 1987-12-29 The United States Of America As Represented By The Secretary Of The Army Optical radar transceiver control apparatus
US4736132A (en) * 1987-09-14 1988-04-05 Rockwell International Corporation Piezoelectric deformable mirrors and gratings
US5379310A (en) * 1993-05-06 1995-01-03 Board Of Trustees Of The University Of Illinois External cavity, multiple wavelength laser transmitter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9268110B2 (en) 2009-03-13 2016-02-23 Optotune Ag Lens system and method

Also Published As

Publication number Publication date
WO1999048197A2 (en) 1999-09-23
EP1086529A2 (en) 2001-03-28
AU3451499A (en) 1999-10-11

Similar Documents

Publication Publication Date Title
AU2782795A (en) Fibre grating stabilized diode laser
CA2377286A1 (en) Light-beam deflecting device with photonic crystal, optical switch using the same, and light-beam deflecting method
WO2002095485A3 (en) Focusing mirrors having variable reflective properties
WO2002091060A3 (en) Light modulating device
DE69940395D1 (en) Optical grating devices with tunable variable grating pitch ("chirp")
WO2002097936A3 (en) Apparatus and method for controlling the operating wavelength of a laser
WO1999048197A3 (en) Piezoelectric difraction grating light steering device
EP0898182A3 (en) Diffractive optical element and optical system having the same
AU4727596A (en) Chirped optical fibre grating
AU2002229982A1 (en) Optical waveguide bragg grating system
CA2212736A1 (en) A laser
AU2002367089A1 (en) Diffractive safety element
EP1341026A3 (en) Beam splitting element and optical apparatus using it
AU4369497A (en) Optical waveguide with Bragg grating
EP1605563A3 (en) External cavity resonator type light source
AU2002363297A1 (en) Laser beam steering system
CA2067019A1 (en) Externally modulated laser source for array illumination
CA2256926A1 (en) Tunable chirped fiber grating device and method for forming chirped fiber grating
WO2001081988A3 (en) Variable optical filter and devices applying such filter
AU5235799A (en) Laser printer having variable beam spacing
EP0348863A3 (en) Laser beam stop
AU7777894A (en) Tunable optical waveguide grating arrangement
WO1997008262A3 (en) Aggregrates of substituted [6]helicene compounds that show enhanced optical rotatory power and nonlinear optical response and uses thereof
CA2126882A1 (en) Tunable optical arrangement
AU2002257187A1 (en) Lensless laser focusing device

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
NENP Non-entry into the national phase

Ref country code: KR

WWE Wipo information: entry into national phase

Ref document number: 1999916137

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1999916137

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1999916137

Country of ref document: EP