Title:
STATIC METHOD FOR LASER SPECKLE REDUCTION AND APPARATUS FOR REDUCING SPECKLE
Document Type and Number:
WIPO Patent Application WO2004102258
Kind Code:
A3
Abstract:
An apparatus and method is disclosed for reducing speckle of a laser beam, the apparatus comprising at least one beam-collimating element having an input and an output, at least one birefringent optical coupler having a first and a second inputs, and a first and a second outputs, at least one optical feedback element having an input and an output, the input of the at least one optical feedback element being connected to the second output of the at least one birefringent optical coupler and the output of the at least one optical feedback element being connected to the second input of the at least one birefringent optical coupler, an optical fiber connecting the output of the at least one beam-collimating element to the first input of the at least one birefringent optical coupler, an optical focusing element having an input and an output, and an optical fiber connecting the first output of the at least one birefringent optical coupler to the input of said optical focusing element, wherein said laser beam is provided to said input of said at least one beam-collimating element resulting in said laser beam having reduced speckle at said output of said optical focusing element.
Inventors:
MIRON NICOLAE (CA)
Application Number:
PCT/CA2004/000742
Publication Date:
January 06, 2005
Filing Date:
May 17, 2004
Export Citation:
Assignee:
STOCKERYALE CANADA INC (CA)
MIRON NICOLAE (CA)
MIRON NICOLAE (CA)
International Classes:
G02B6/10; G02B6/14; G02B6/28; G02B27/48; (IPC1-7): G02B27/48
Domestic Patent References:
| WO2001057581A2 | 2001-08-09 | |||
| WO2000043822A1 | 2000-07-27 |
Foreign References:
| US6249381B1 | 2001-06-19 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02 2 April 2002 (2002-04-02)
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