Double-clad fiber lasers and amplifiers having long-period...

Details Double-clad fiber lasers and amplifiers having long-period... Double-clad fiber lasers and amplifiers having long-period...

2006-06-20

2006-06-20

Hughes, Deandra M. (Department: 3663)

Optical: systems and elements

Optical amplifier

Optical fiber

C385S126000, C385S127000

Reexamination Certificate

active

07064889

ABSTRACT:
Long-period fiber gratings are placed in a predetermined pattern along a double-clad optical fiber having an outer cladding, an inner cladding and a core. The core is doped with an optically active material such as, for example, a rare earth ion or other laser ion. The long-period fiber gratings couple light between a mode of the inner cladding and a mode of the core. As a consequence of increased coupling into the core resulting from the use of long-period fiber gratings, the length of double-clad optical fiber needed to transfer light between the inner cladding and the core is reduced.

REFERENCES:
patent: 5920582 (1999-07-01), Byron
patent: 6282341 (2001-08-01), Digonnet et al.
patent: 6301408 (2001-10-01), Espindola et al.
patent: 6427040 (2002-07-01), Ahuja et al.
patent: 6463684 (2002-10-01), Jang
patent: 6487340 (2002-11-01), Enomoto et al.
patent: 6490078 (2002-12-01), Enomoto et al.
patent: 2002/0105997 (2002-08-01), Zhang
patent: 2002/0172459 (2002-11-01), Bailey et al.
patent: 1 137 127 (2001-09-01), None
patent: 2002107555 (2002-04-01), None
Saleh et al. Fundamentals of Photonics. John Wiley & Sons. 1991. p. 288.
E. Snitzer et al.,Observed dielectric waveguide modes in the visible spectrum, Journal of Optical Society of America, vol. 51, No. 5, May 1961, pp. 499-505.
D. Gloge,Optical power flow in multimode fibers, Bell System Technical Journal, vol. 51, No. 8, Oct. 1972, pp. 1767-1783.
E. Snitzer et al.,Double-clad, offset core Nd fiber laser, Proceedings of Conference on Optical Fiber Sensors, Postdeadline paper PD5, 1988.
H. Po et al.,Double-clad high brightness Nd fiber laser pumped by GaA/As phased array, Proceedings of Optical Fiber Communication '89, Postdeadline paper PD7, 1989, 4 pages.
H. Po et al.,High power neodymium-doped single transverse mode fibre laser, Electronics Letters, vol. 29, No. 17, Aug. 19, 1993, pp. 1500-1501.
Luis Zenteno,High-power double-clad fiber lasers, Journal of Lightwave Technology, vol. 11, No. 9, Sep. 1993, pp. 1435-1446.
Luis A. Zenteno,Design of a device for pumping a double-clad fiber laser with a laser-diode bar, Applied Optics, vol. 33, No. 31, Nov. 1, 1994, pp. 7282-7287.
Th. Weber et al.,Cladding-pumped fiber laser, IEEE Journal of Quantum Electronics, vol. 31, No. 2, Feb. 1995, pp. 326-329.
Th. Weber et al.,A longitudinal and side-pumped single transverse mode double-clad fiber laser with a special silicone coating, Optics Communication, vol. 115, No. 1-2, Mar. 1995, pp. 99-104.
H. Zellmer et al.,High-power cw neodymium-doped fiber laser operating at 9.2 W with high beam quality, Optics Letters, vol. 20, No. 6, Mar. 15, 1995, pp. 578-580.
V.P. Gapontsev et al.,25 kW peak power, wide-tunable-repetition-rate and pulse duration eye safe MOPFA laser, Proceedings of Conference on Lasers and Electro-Optics, CLEO'96, vol. 9, Paper CTuU3, 1996, pp. 209-210.
A, Tünnermann,High-power Nd double-clad fiber lasers, Proceedings of Conference on Lasers and Electro-Optics, CLEO'96, Paper CFJ1, 1996, p. 528.
Anping Liu et al.,The absorption charcteristics of rare earth doped circular double-clad fibers, Optical Review, vol. 3, No. 4, Jul.-Aug. 1996, pp. 276-281. (Abstract Only).
Th. Weber et al.,Side-pumped fiber laser, Applied Physics B, vol. 63, No. 2, Aug. 1996, pp. 131-134.
Ch. Ghisler et al.,Cladding-pumping of a Tm3+:Ho3+silica fibre laser, Optics Communication, vol. 132, No. 5-6, Dec. 15, 1996, pp. 474-478.
Anping Liu et al.,The absorption characteristics of circular, offset, and rectangular double-clad fibers, Optics Communications, vol. 132, No. 5-6, Dec. 15, 1996, pp. 511-518.
H. Zellmer et al.,Double-clad fiber laser with 30 W output power, Proceedings of Optical Amplifiers and their Applications, OSA Trends in Optics and Photonics Series, vol. 16, Jul. 1997, pp. 137-140.
Turan Erdogan,Cladding-mode resonances in short- and long-period fiber grating filters, Journal of the Optical Society of America A, vol. 14, No. 8, Aug. 1997, pp. 1760-1773.
L. Goldberg et al.,V-groove side-pumped 1.5 μm fibre amplifier, Electronics Letters, vol. 33, No. 25, Dec. 4, 1997, pp. 2127-2129.
V. Reichel et al.,High-power single-mode Nd-doped fiber-laser, inSolid State Lasers VII, Proceedings of SPIE, vol. 3265, 1998, pp. 192-199.
Martin E. Fermann,Single-mode excitation of multimode fibers with ultrashort pulses, Optics Letters, vol. 23, No. 1, Jan. 1, 1998, pp. 52-54.
David J. DiGiovanni et al.,High-power fiber lasers, Optics and Photonics News, vol. 10, No. 1, Jan. 1999, pp. 26-30.
V. Dominic et al., 110 W fibre laser, Electronics Letters, vol. 35, No. 14, Jul. 8, 1999, pp. 1158-1160.
Tae-Jung Eom et al.,Novel optical fiber connector using long-period fiber gratings, Proceedings of SPIE, vol. 4638, 2000, pp. 99-106.
Copy of International Search Report mailed on Nov. 5, 2003, in Applicants' corresponding International Application No. PCT/US03/15805 (4 pages).

Affiliated with

Also associated with

Rating

Double-clad fiber lasers and amplifiers having long-period... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Double-clad fiber lasers and amplifiers having long-period..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double-clad fiber lasers and amplifiers having long-period... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3689231