Brightness enhancement of diode light sources

Optical: systems and elements – Optical amplifier – Raman or brillouin process

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C385S071000

Reexamination Certificate

active

07034992

ABSTRACT:
Briefly, the present invention relates to a system for combining the output light beams of a plurality of semiconductor laser diodes, for example, to form a combined light beam with increased brightness. The output light beams from the semiconductor laser diodes are coupled to a plurality of optical fibers forming a fiber coupled diode array. The optical fibers forming the fiber coupled diode array are coupled to a dual clad optical fiber with a central core. The output light beams from the optical fibers from the fiber coupled diode array are coupled to the inner cladding of a dual clad optical fiber. A Stokes seed source is applied to the central core, and the inner-clad diode light acts as a pump source to amplify the Stokes beam by stimulated Ramans scattering, thereby transferring power from the inner cladding into Stokes beam in the central core. The configuration in accordance with the present invention provides a Stokes output light beam with a relatively higher brightness level than known techniques which merely combine the output light beams from a plurality of semiconductor diodes and eliminates the need for a relatively precise alignment and the cost associated with the lenses required by known systems.

REFERENCES:
patent: 5299222 (1994-03-01), Shannon et al.
patent: 5533163 (1996-07-01), Muendel
patent: 5555254 (1996-09-01), Injeyan et al.
patent: 5646773 (1997-07-01), Injeyan et al.
patent: 5668903 (1997-09-01), Neuberger et al.
patent: 5675685 (1997-10-01), Fukuda et al.
patent: 5764675 (1998-06-01), Juhala
patent: 5793783 (1998-08-01), Endriz
patent: 5949941 (1999-09-01), DiGiovanni
patent: 6005717 (1999-12-01), Neuberger et al.
patent: 6094297 (2000-07-01), Injeyan et al.
patent: 6101199 (2000-08-01), Wang et al.
patent: 6157763 (2000-12-01), Grubb et al.
patent: 6178040 (2001-01-01), Injeyan et al.
patent: 6229939 (2001-05-01), Komine
patent: 6259842 (2001-07-01), Giltner
patent: 6416234 (2002-07-01), Wach et al.
patent: 6535660 (2003-03-01), Judy
patent: 6624927 (2003-09-01), Wong et al.
patent: 6819861 (2004-11-01), Ota et al.
patent: 2003/0174977 (2003-09-01), Mayer et al.
patent: 2004/0095968 (2004-05-01), Avizonis et al.
patent: 1229674 (2002-08-01), None
Robert Stegeman, et al., Tellurite glasses with peak absolute Raman gain coefficients up to 30 times that of fused silica, Optics Letters, Jul. 1, 2003, pp. 1126-1128, vol. 28, No. 13.
“Coupling of High-Power Diode Laser Arrays and Fibers,” Li Lina, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, pp. 201-203.
“Fiber Coupling of Laser Diode Arrays for High Brightness: Cladding Considerations,” Bolesh J. Skutnik and Holly Park, CeramOptec Industries, Inc., pp. 86-93.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Brightness enhancement of diode light sources does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brightness enhancement of diode light sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brightness enhancement of diode light sources will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3565620

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.