Title:
MULTI-SPECTRAL LINE RAMAN LASER
Document Type and Number:
WIPO Patent Application WO2004045033
Kind Code:
A3
Abstract:
A multiple spectral line Raman laser having adjustable relative power output between different spectral lines is provided. The laser includes a lasing cavity, first and second reflectors optically coupled to a back end of the cavity that reflects substantially all light having wavelengths of lambda1 and lambda2, respectively, and a tunable reflector assembly optically coupled to a front end of the cavity that reflects a selected proportion of said light having wavelengths of lambda1 and lambda2 in response to a single source of strain to control relative power output of light at these wavelengths. The lasing cavity may be a linear length of gain fiber, and the tunable reflector may include a single fiber Bragg grating (FBG) having a trapezoidal reflection profile, or a pair of fiber Bragg gratings mounted on either side of a flexible substrate such that when the substrate is bent, one FBG stretches while the other is compressed. Alternatively, the lasing cavity may be a fiber ring cavity, and the reflector assembly may include a bendable wavelength-selective fiber coupler.
Inventors:
KUKSENKOV DMITIR V
Application Number:
PCT/US2003/036013
Publication Date:
December 16, 2004
Filing Date:
November 12, 2003
Export Citation:
Assignee:
CORNING INC (US)
International Classes:
H01S3/067; H01S3/08; H01S3/30; (IPC1-7): H01S3/067; H01S3/30
Foreign References:
| US5815518A | 1998-09-29 | |||
| US6163554A | 2000-12-19 | |||
| EP0441050A2 | 1991-08-14 | |||
| US6321022B1 | 2001-11-20 |
Other References:
MERMELSTEIN M D ET AL: "CONFIGURABLE THREE-WAVELENGTH RAMAN FIBER LASER FOR RAMAN AMPLIFICATION AND DYNAMIC GAIN FLATTENING", IEEE PHOTONICS TECHNOLOGY LETTERS, IEEE INC. NEW YORK, US, vol. 13, no. 12, December 2001 (2001-12-01), pages 1286 - 1288, XP001076759, ISSN: 1041-1135
A E WILLNER ET AL: "Tunable compensation of channel degrading effects using nonlinearly chirped passive fibre Bragg gratings", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, vol. 5, no. 5, 1999, pages 1298 - 1311, XP002277801
LEPLINGARD F ET AL: "Six output wavelength Raman fibre laser for Raman amplification", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 38, no. 16, 1 August 2002 (2002-08-01), pages 886 - 887, XP006018608, ISSN: 0013-5194
IMAI T ET AL: "A WAVELENGTH TUNABLE Y-SWITCHED FIBER LASER USING FIBER BRAGG GRATINGS", ELECTRONICS & COMMUNICATIONS IN JAPAN, PART II - ELECTRONICS, SCRIPTA TECHNICA. NEW YORK, US, vol. 80, no. 11, November 1997 (1997-11-01), pages 12 - 21, XP000862688, ISSN: 8756-663X
CHANG DO IL ET AL: "Dual-wavelength cascaded Raman fibre laser", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 36, no. 16, 3 August 2000 (2000-08-03), pages 1356 - 1358, XP006015553, ISSN: 0013-5194
CHEN Z ET AL: "TUNABLE FIBER ATTENUATORS FOR CHANNEL POWER EQUALIZATION IN WDM SYSTEMS", MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, JOHN WILEY, NEW YORK, NY, US, vol. 26, no. 1, 5 July 2000 (2000-07-05), pages 1 - 4, XP009029424, ISSN: 0895-2477
Y-J CHIANG ET AL: "Multipoint temperature-independent fiber-Bragg-grating strain-sensing system employing an optical-power-detection scheme", APPLIED OPTICS, vol. 41, no. 9, 20 March 2002 (2002-03-20), pages 1661 - 1667, XP002290572
A E WILLNER ET AL: "Tunable compensation of channel degrading effects using nonlinearly chirped passive fibre Bragg gratings", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, vol. 5, no. 5, 1999, pages 1298 - 1311, XP002277801
LEPLINGARD F ET AL: "Six output wavelength Raman fibre laser for Raman amplification", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 38, no. 16, 1 August 2002 (2002-08-01), pages 886 - 887, XP006018608, ISSN: 0013-5194
IMAI T ET AL: "A WAVELENGTH TUNABLE Y-SWITCHED FIBER LASER USING FIBER BRAGG GRATINGS", ELECTRONICS & COMMUNICATIONS IN JAPAN, PART II - ELECTRONICS, SCRIPTA TECHNICA. NEW YORK, US, vol. 80, no. 11, November 1997 (1997-11-01), pages 12 - 21, XP000862688, ISSN: 8756-663X
CHANG DO IL ET AL: "Dual-wavelength cascaded Raman fibre laser", ELECTRONICS LETTERS, IEE STEVENAGE, GB, vol. 36, no. 16, 3 August 2000 (2000-08-03), pages 1356 - 1358, XP006015553, ISSN: 0013-5194
CHEN Z ET AL: "TUNABLE FIBER ATTENUATORS FOR CHANNEL POWER EQUALIZATION IN WDM SYSTEMS", MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, JOHN WILEY, NEW YORK, NY, US, vol. 26, no. 1, 5 July 2000 (2000-07-05), pages 1 - 4, XP009029424, ISSN: 0895-2477
Y-J CHIANG ET AL: "Multipoint temperature-independent fiber-Bragg-grating strain-sensing system employing an optical-power-detection scheme", APPLIED OPTICS, vol. 41, no. 9, 20 March 2002 (2002-03-20), pages 1661 - 1667, XP002290572
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