Title:
FEEDBACK MECHANISMS FOR STABILIZING A LASER SYSTEM
Document Type and Number:
WIPO Patent Application WO2005020393
Kind Code:
A3
Abstract:
An optical system (30, 40, 50, 60, 70, 80, 90, 100, 130, 140, 150, 160, 170, 230, 3000, 4000, 5000, 6000, and 7000) has a transmission filter device (34, 44, 54, 64, 74, 84, 94, 104, 134, 144, 154, 164, 174, 234, 3500, 4500, 5400, 6500, 7500), a feedback mechanism (38, 48, 58, 68, 78, 88a-88d, 98a-98b, 105, 135, 148, 158, 168a-168b, 178, 238, 3800, 4800, 5800, 6800, 7800), and one or more radiation sources (32, 42a-42b, 52a-52d, 62a-62b, 72a-72d, 82a-82d, 92a-92d, 102a-102d, 132a-132d, 142a-142b, 152a-152b, 162a-162b, 172a-172d, 232a-232d, 3200a-3200n, 4200a-4200n, 5200, 6200a-6200n, 7200a-7200n). Each radiation source generates an output signal with a predetermined wavelength band and polarization and is coupled to a separate input port of the transmission filter device. The transmission filter device, which is responsive to output signal from each radiation source, generates an output signal from at least one output port thereof. The feedback mechanism is coupled to at least one output port of the transmission filter device for providing a feedback signal that is directed back through the transmission filter device device to each of the radiation sources for stabilizing each of the radiation sources. The apparatus is polarization maintaining wherein the one or more radiation sources, the transmission filter device, and the feedback mechanism are interconnected such that principle axes of polarization thereof are substantially aligned.
Inventors:
KHAZAEI HAMID R
SINGH HARMEET
SQUIRES EMILY M
LEWIS DAVID KIRK
SINGH HARMEET
SQUIRES EMILY M
LEWIS DAVID KIRK
Application Number:
PCT/US2004/010449
Publication Date:
April 28, 2005
Filing Date:
April 05, 2004
Export Citation:
Assignee:
OPTOVIA CORP (US)
International Classes:
G02B6/34; H01S3/067; H01S3/10; H01S3/13; H01S3/137; H01S3/23; H01S3/30; H01S3/08; H01S; (IPC1-7): H01S3/30
Foreign References:
| US6052394A | 2000-04-18 |
Other References:
See also references of EP 1654790A4
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