Coherent light generators – Long wavelength
Reexamination Certificate
2007-05-01
2007-05-01
Vo, Tuyet (Department: 2821)
Coherent light generators
Long wavelength
C372S006000, C385S037000
Reexamination Certificate
active
10802616
ABSTRACT:
A fiber laser including doped-core fiber having inner and outer cladding is optically pumped by plurality of diode-lasers. Light emitted by the diode-lasers is coupled into a single multimode optical fiber. Light from the multimode optical fiber is directed to a wavelength selective reflecting device that is partially reflective in a narrow reflection band about a peak reflection wavelength. A portion of the light having the peak reflection wavelength is reflected from the wavelength selective reflecting device back along the multimode optical fiber and back into the plurality of diode-lasers. This locks the emitting wavelength of the light emitted from each of the diode-lasers to the peak reflection wavelength. Light at the emitting wavelength that is not reflected from the wavelength selective reflective device is coupled into the inner cladding of the doped-core fiber for optically pumping the fiber laser.
REFERENCES:
patent: 4786132 (1988-11-01), Gordon
patent: 4911516 (1990-03-01), Palfrey et al.
patent: 4914665 (1990-04-01), Sorin
patent: 5022042 (1991-06-01), Bradley
patent: 5323404 (1994-06-01), Grubb
patent: 5457760 (1995-10-01), Mizrahi
patent: 5485481 (1996-01-01), Ventrudo et al.
patent: 5589684 (1996-12-01), Ventrudo et al.
patent: 5715263 (1998-02-01), Ventrudo et al.
patent: 5841797 (1998-11-01), Ventrudo et al.
patent: 5864644 (1999-01-01), DiGiovanni et al.
patent: 5949932 (1999-09-01), Lawrenz-Stolz
patent: 6041072 (2000-03-01), Ventrudo et al.
patent: 6044093 (2000-03-01), Ventrudo et al.
patent: 6288835 (2001-09-01), Nilsson et al.
patent: 1 215 784 (2002-06-01), None
patent: WO 99/37002 (1999-07-01), None
C.R. Giles et al., “Reflection-Induced Changes in the Optical Spectra of 980-nm QW Lasers,”IEEE Photonics Technology Letters, vol. 6, No. 8, Aug. 1994, pp. 903-906.
L. Zhai et al., “Detuning Characteristics of Mode-locked Semiconductor Lasers with a Chirped Fibre-Grating External Cavity,”Instn. Radio&Electron. Eng. Australia, Edgecliff, NSW, Australia(Conference: Proceedings of the 18th Australian Conference on Optical Fibre Technology), Nov. 28 - Dec. 1, 1993, 21 pages in length.
S.L. Woodward et al., “Wavelength Stabilization of a DBR Laser Using an In-Fiber Bragg Filter,”IEEE Photonics Technology Letters, vol. 5, No. 6, Jun. 1993, pp. 628-630.
G.M. Carter et al., “Compression of pulses from a mode locked GaAs laser diode in an extended cavity with a fiber grating reflector,”Applied Physics Letters, vol. 61, No. 4, Jul. 27, 1992, pp. 379-380.
D.M. Bird et al., “Narrow Line Semiconductor Laser Using Fibre Grating,”Electronics Letters, vol. 27. No. 13, Jun. 20, 1991, pp. 1115-1116.
W.V. Sorin et al., “Tunable Single-Mode Fiber Reflective Grating Filter,”Journal of Lightwave Technology, vol. LT-5, No. 9, Sep. 1987, pp. 1119-1202.
W.V. Sorin et al., “Tunable Single-Mode Output of a Multimode Laser in a Tunable Fibre Grating External Cavity,”Electronics Letters, vol. 23, No. 8, Apr. 9, 1987, pp. 390-391.
A.A. Tager et al., “Stability Regimes and High-Frequency Modulation of Laser Diodes with Short External Cavity,”IEEE Journal of Quantum Electronics, vol. 29, No. 12, Dec. 1993, pp. 2886-2890.
G.L. Koay et al., “Effect of Optical Feedback on Short-Haul Lightwave Systems Using Fabry-Perot Lasers,”Instn. Radio&Electron. Eng. Australia, Edgecliff, NSW, Australia(Conference: Proceedings of the 18th Australian Conference on Optical Fibre Technology), Nov. 28 - Dec. 1, 1993, 4 pages in length.
J. Sigg, “Effects of Optical Feedback on the Light-Current Characteristics of Semiconductor Lasers,”IEEE Journal of Quantum Electronics, vol. 29, No. 5, May 1993, pp. 1262-1270.
S.L. Woodward et al., “The Onset of Coherence Collapse in DFB Lasers,”IEEE Photonics Technology Letters, vol. 4, No. 3, Mar. 1992, pp. 221-223.
J. Mørk et al., “Chaos in Semiconductor Lasers with Optical Feedback: Theory and Experiment,”IEEE Journal of Quantum Electronics, vol. 28, No. 1, Jan. 1992, pp. 93-108.
D.M. Byrne et al., “Optical Feedback-Induced Noise in Pigtailed Laser Diode Modules,”IEEE Photonics Technology Letters, vol. 3, No. 10, Oct. 1991, pp. 891-894.
J.S. Cohen et al., “The Critical Amount of Optical Feedback for Coherence Collapse in Semiconductor Lasers,”IEEE Journal of Quantum Electronics, vol. 27, No. 1, Jan. 1991, pp. 10-12.
B. Tromborg et al., “Stability Analysis and the Route to Chaos for Laser Diodes with Optical Feedback,”IEEE Photonics Technology Letters, vol. 2, No. 8, Aug. 1990, pp. 549-552.
J.O. Binder et al., “Mode Selection and Stability of a Semiconductor Laser with Weak Optical Feedback,”IEEE Journal of Quantum Electronics, Vol. 25, No. 11, Nov. 1989, pp. 2255-2259.
N. Schunk et al., “Stability Analysis for Laser Diodes with Short External Cavities,”IEEE Photonics Technology Letters, vol. 1, No. 3, Mar. 1989, pp. 49-51.
K. Petermann et al., “Laser diode characteristics with external optical feedback,”Fourteenth European Conference on Optical Communication(ECOC 88), Sep. 11-15, 1988, 20 pages in length.
N. Schunk et al., “Measured Feedback-Induced Intensity Noise for 1-3μm DFB Laser Diodes,”Electronics Letters, vol. 25, No. 1, Jan. 5, 1989, pp. 63-64.
N. Schunk et al., “Numerical Analysis of the Feedback Regimes for a Single-Mode Semiconductor Laser with External Feedback,”IEEE Journal of Quantum Electronics, vol. 24, No. 7, Jun. 1988, pp. 1242-1247.
B.H. Verbeek, “Coherence Properties and L.F. Noise in AlGaAs Lasers with Optical Feedback,”SPIE-The International Society for Optical Engineering, Proceedings vol. 587 Optical Fiber Sources and Detectors, Nov. 28-29, 1985, pp. 93-98.
C.H. Henry, “Phase Noise in Semiconductor Lasers,”Journal of Lightwave Technology, vol. LT-4, No. 3, Mar. 1986, pp. 298-311.
D. Lenstra et al., “Coherence Collapse in Single-Mode Semiconductor Lasers Due to Optical Feedback,”IEEE Journal of Quantum Electronics, vol. QE-21, No. 6, Jun. 1985, pp. 674-679.
C.R. Giles et al., “Simultaneous Wavelength-Stabilization of 980-nm Pump Lasers,”IEEE Photonics Technology Letters, vol. 6, No. 8, Aug. 1994, pp. 907-909.
Reed Murray Keith
Starodoumov Andrei
Coherent Inc.
Stallman & Pollock LLP
Vo Tuyet
Vu Jimmy
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