Coherent light generators – Particular resonant cavity – Folded cavity
Reexamination Certificate
2007-09-18
2007-09-18
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular resonant cavity
Folded cavity
C372S029011
Reexamination Certificate
active
11096472
ABSTRACT:
A single-frequency Brillouin fiber ring laser with extremely narrow linewidth comprises a single-frequency narrow-linewidth rapid-tunable pump laser, a temperature-controlled acoustically-damped package for Brillouin fiber ring laser cavity, and an auto-tracking feedback electronic loop with novel configuration for active stabilization. The Pound-Drever-Hall frequency-locking technique is employed to keep pump laser frequency in resonance with one of the Brillouin fiber ring cavity modes. Instead of changing cavity length of Brillouin fiber ring laser, the pump laser frequency is rapidly tuned in the auto-tracking feedback electronic loop. This enables extremely narrow linewidth radiation emitted from a Brillouin fiber ring laser without stretching the fiber ring. Dual-wavelength actively stabilized Brillouin fiber ring laser may be generated from a single ring cavity by polarization-combining or wavelength-combining two pump laser beams and using two independent feedback loops to the two operation wavelengths.
REFERENCES:
patent: 4107628 (1978-08-01), Hill et al.
patent: 4422154 (1983-12-01), Smithline et al.
patent: 4530097 (1985-07-01), Stokes et al.
patent: 4780876 (1988-10-01), Smith et al.
patent: 5064288 (1991-11-01), Dyes et al.
patent: 5233462 (1993-08-01), Wong
patent: 5323415 (1994-06-01), Quast et al.
patent: 5398111 (1995-03-01), Cardarelli
patent: 5517305 (1996-05-01), Raab
patent: 5912910 (1999-06-01), Sanders et al.
patent: H1813 (1999-11-01), Kersey
patent: 5991061 (1999-11-01), Adams et al.
patent: 6567436 (2003-05-01), Yao et al.
patent: 6763042 (2004-07-01), Williams et al.
patent: 2002/0037025 (2002-03-01), Bartman et al.
patent: 2002/0105998 (2002-08-01), Ksendzov
patent: 2004/0161250 (2004-08-01), Kozlowski et al.
Wavelength-Tunable Single-Frequency And Single-Polarisation Erbium-Doped Fibre Ring-Laser With 1.4 kHz Linewidth, by K. Iwatsuki et al., Electronics Letters, vol. 26, No. 24, Nov. 22, 1990, pp. 2033-2035.
Wyatt, R., Devlin, W. J., “10 kHz Linewidth 1.5um InGaAsP External Cavity Laser with 55nm Tuning Range” Electronics Letters, vol. 19, No. 3, Feb. 3, 1983, pp. 110-112.
“Singlemode Diode-Pumped Tunable Erbium-Doped Fibre Laser With Linewidth Less Than 5.5 kHz”, by J. Zyskind et al., Electronics Letters, vol. 27, No. 23, Nov. 7, 1991, pp. 2148-2149.
“Compact hybrid resonant optical reflector lasers with very narrow linewidths.”, by D. A. Ackerman et al. Applied Physics Letters vol. 58, No. 5, Feb. 4, 1991, pp. 449-451.
“Short Single Frequency Erbium-Doped Fibre Laser”, by J. Zyskind et al., Electronics Letters, vol. 28, No. 15, Jul. 16, 1992, pp. 1385-1387.
“10 kHz-Linewidth Diode-Pumped Er:Yb:Glass Laser”, by P. Laporta et al., Electronics Letters, vol. 28, No. 22, Oct. 22, 1992, pp. 2067-2069.
“Studies of coherence properties of a diode-pumped Nd:YAG ring laser”, by S. P. Bush et al., Applied Physics Letters, vol. 53, No. 8, Aug. 22, 1988, pp. 646-647.
K.O. Hill et al., cw Brillouin laser, Applied Physics Letters, May 15, 1976, vol. 28, No. 10, pp. 608-609.
S.P. Smith et al., Narrow-linewidth stimulated Brillouin fiber laser and applications, Optics Letters, Mar. 15, 1991, vol. 16, No. 6, pp. 393-395.
J. Boschung et al., High-accuracy measurement of the linewidth of a Brillouin fibre ring laser, Electronics Letters, Sep. 1, 1994, vol. 30, No. 18 pp. 1488-1489.
Donald R. Ponikvar et al., Stabilized single-frequency stimulated Brillouin fiber ring laser, Optics Letters, Aug. 1981, vol. 6, No. 8, pp. 398-400.
P. Bayvel et al., Linewidth narrowing in semiconductor laser pumped all-fibre Brillouin ring laser, Electronics Letters, Feb. 16, 1989, vol. 25, No. 4, pp. 260-262.
Jae Chul Yong et al., Brillouin Fiber Laser Pumped by a DFB Laser Diode, Journal of Lightwave Technology, Feb. 2003, vol. 21, No. 2, pp. 546-554.
S. Norcia et al., Efficient single-mode Brillouin fiber laser for low-noise optical carrier reduction of microwave signals, Optical Society of America, Oct. 15, 2003, vol. 28, No. 20, pp. 1888-1890.
Eric D. Black, An ilntroduction to Pound-Drever-Hall laser frequency stabilization, American Association of Physics Teachers., Jan. 2001, 69 (1), pp. 79-87.
Geng Jihong
Jiang Shibin
Gifford Eric A.
Hagan Sean
Harvey Minsun Oh
NP Photonics, Inc
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