CA918474A - Coherent optical noise suppression apparatus - Google Patents

Coherent optical noise suppression apparatus

Info

Publication number
CA918474A
CA918474A CA082976A CA82976A CA918474A CA 918474 A CA918474 A CA 918474A CA 082976 A CA082976 A CA 082976A CA 82976 A CA82976 A CA 82976A CA 918474 A CA918474 A CA 918474A
Authority
CA
Canada
Prior art keywords
noise suppression
coherent optical
suppression apparatus
optical noise
coherent
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
CA082976A
Inventor
S. Mathisen Einar
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA918474A publication Critical patent/CA918474A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03HHOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/32Systems for obtaining speckle elimination
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES 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
    • H01S3/00Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/005Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
CA082976A 1969-06-17 1970-05-19 Coherent optical noise suppression apparatus Expired CA918474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83390669A 1969-06-17 1969-06-17

Publications (1)

Publication Number Publication Date
CA918474A true CA918474A (en) 1973-01-09

Family

ID=25265580

Family Applications (1)

Application Number Title Priority Date Filing Date
CA082976A Expired CA918474A (en) 1969-06-17 1970-05-19 Coherent optical noise suppression apparatus

Country Status (6)

Country Link
US (1) US3588217A (en)
JP (1) JPS4948979B1 (en)
CA (1) CA918474A (en)
CH (1) CH500511A (en)
FR (1) FR2052340A5 (en)
GB (1) GB1291340A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4155630A (en) * 1977-11-17 1979-05-22 University Of Delaware Speckle elimination by random spatial phase modulation
JPS5924823A (en) * 1982-07-30 1984-02-08 Leo Giken:Kk Device for effacing influence of speckle of output light of optical fiber
DE19704741A1 (en) 1997-02-13 1998-08-20 Daimler Benz Ag Holographic screen with integrated speckle suppression
US6791739B2 (en) 2001-08-08 2004-09-14 Eastman Kodak Company Electro-optic despeckling modulator and method of use
US6594090B2 (en) 2001-08-27 2003-07-15 Eastman Kodak Company Laser projection display system
US6577429B1 (en) 2002-01-15 2003-06-10 Eastman Kodak Company Laser projection display system
US6810175B1 (en) * 2002-04-22 2004-10-26 Terabeam Corporation Off-axis mode scrambler
USRE44472E1 (en) 2002-04-22 2013-09-03 Pertex Telecommunication Llc Extended source transmitter for free space optical communication systems
WO2004106999A1 (en) * 2003-05-28 2004-12-09 Corning Incorporated Methods of generating and transporting short wavelength radiation and apparati used therein
JP5058798B2 (en) * 2005-07-11 2012-10-24 三菱電機株式会社 Lighting device
WO2007007389A1 (en) * 2005-07-11 2007-01-18 Mitsubishi Denki Kabushiki Kaisha Speckle removing light source and illuminator
US7457330B2 (en) 2006-06-15 2008-11-25 Pavilion Integration Corporation Low speckle noise monolithic microchip RGB lasers
GB2462444A (en) * 2008-08-06 2010-02-10 Optyka Ltd Image projection apparatus and method
US7969644B2 (en) * 2008-09-02 2011-06-28 Elbit Systems Of America, Llc System and method for despeckling an image illuminated by a coherent light source
GB2467181B (en) * 2009-01-27 2014-03-05 Optyka Ltd Speckle removal for a laser scanning projector
US8437059B2 (en) * 2010-01-21 2013-05-07 Technion Research & Development Foundation Limited Method for reconstructing a holographic projection
EP2354638A1 (en) * 2010-02-09 2011-08-10 Koninklijke Philips Electronics N.V. Lighting apparatus for generating a decorative illumination pattern
US9158063B2 (en) * 2011-07-07 2015-10-13 Reald Inc. Apparatus for despeckling laser systems and methods thereof
CN103364956B (en) * 2012-03-29 2016-01-06 山东华光光电子有限公司 A kind of method of optical fiber Output of laser homogenising dissipation spot and device
CN103293700A (en) * 2013-05-20 2013-09-11 北京航空航天大学 Optical mixing rod vibration structure for laser illumination speckle reduction
US20210181518A1 (en) * 2019-12-13 2021-06-17 Hamamatsu Photonics K.K. Light source module

Also Published As

Publication number Publication date
DE2029218B2 (en) 1977-04-07
FR2052340A5 (en) 1971-04-09
US3588217A (en) 1971-06-28
JPS4948979B1 (en) 1974-12-24
DE2029218A1 (en) 1971-01-07
CH500511A (en) 1970-12-15
GB1291340A (en) 1972-10-04

Similar Documents

Publication Publication Date Title
CA918474A (en) Coherent optical noise suppression apparatus
CA921834A (en) Noise suppressing baffle
CA928626A (en) Method for the attenuation of sound
CA924201A (en) Noise suppressor system
CA941559A (en) Nut-tapping apparatus
CA930147A (en) Component assembly apparatus
CA920094A (en) Brake apparatus
CA943878A (en) Brake apparatus
CA919969A (en) Holographic apparatus
AU448060B2 (en) Noise suppressor system
CA921306A (en) Holographic apparatus
AU457896B2 (en) Holographic apparatus
AU2347070A (en) Apparatus
CA784079A (en) Zero suppression apparatus
CA809131A (en) Fiber attenuating apparatus
CA828936A (en) Optical maser apparatus
AU2184970A (en) Noise suppressor system
CA810377A (en) Optical spherometer
CA810446A (en) Jet engine noise suppression apparatus
AU5359269A (en) Smoke washing apparatus
CA817785A (en) Kinematographic apparatus
CA822928A (en) Optical interferometer
CA820691A (en) Scrubber apparatus
CA826000A (en) Filter apparatus
CA826001A (en) Filter apparatus