Coherent light generators – Optical fiber laser
Reexamination Certificate
2011-07-19
2011-07-19
Harvey, Minsun (Department: 2828)
Coherent light generators
Optical fiber laser
C372S019000
Reexamination Certificate
active
07983312
ABSTRACT:
A planar laser gain medium and laser system. The novel laser gain medium includes an active core having a high aspect ratio cross-section with a fast-axis dimension and a slow-axis dimension, signal claddings adapted to form reflective boundaries at fast-axis boundaries of the core, and a material adapted to minimize reflections at slow-axis boundaries of the core. In an illustrative embodiment, the laser gain medium is an optical fiber. The core and claddings form a waveguide adapted to control modes propagating in the fast-axis direction. When the laser gain medium is employed as a laser oscillator, a high reflectivity mirror and an outcoupler are positioned at opposite ends of the core to form a laser resonator adapted to control modes in the slow-axis direction.
REFERENCES:
patent: 3838358 (1974-09-01), Vanderleeden
patent: 4791648 (1988-12-01), Vojak et al.
patent: 4848881 (1989-07-01), Kahan et al.
patent: 5046809 (1991-09-01), Stein
patent: 5386427 (1995-01-01), Zayhowski
patent: 5646773 (1997-07-01), Injeyan et al.
patent: 5651021 (1997-07-01), Richard et al.
patent: 5748663 (1998-05-01), Chenausky
patent: 5864644 (1999-01-01), DiGiovanni et al.
patent: 5909529 (1999-06-01), Bhagavatula
patent: 5930433 (1999-07-01), Williamson et al.
patent: 6014391 (2000-01-01), Byren
patent: 6160824 (2000-12-01), Meissner et al.
patent: 6229939 (2001-05-01), Komine
patent: 6317548 (2001-11-01), Rockwell et al.
patent: 6400871 (2002-06-01), Minden
patent: 6477295 (2002-11-01), Lang et al.
patent: 6529318 (2003-03-01), Kaneda et al.
patent: 6570702 (2003-05-01), Wilcox et al.
patent: 6888859 (2005-05-01), Weber et al.
patent: 6904219 (2005-06-01), Fermann
patent: 7164818 (2007-01-01), Bryan et al.
patent: 7193771 (2007-03-01), Smith et al.
patent: 2002/0024727 (2002-02-01), Wilcox
patent: 2003/0161375 (2003-08-01), Filgas et al.
patent: 2004/0095968 (2004-05-01), Avizonis et al.
patent: 2007/0041083 (2007-02-01), Di Teodoro et al.
patent: 10211352 (2002-09-01), None
patent: 0277768 (1988-08-01), None
patent: 2366447 (2002-03-01), None
patent: 9424734 (1994-10-01), None
patent: 0027000 (2000-05-01), None
patent: 2004066458 (2004-08-01), None
W. Koechner, Solid-State Laser Engineering, Springer-Verlag, New York, p. 30-31, 1999.
M. Digonnet, Ed., Rare-Earth-Doped Fiber Lasers and Amplifiers, Optical Engineering, Marcel Dekker, p. 1-15, 2001.
M. E. Fermann, Single-mode excitation of multimode fibers with ultrashort pulses. Optics Letters, vol. 23 No. 1, p. 52-54, (1998).
V. Bhagavatula et al, Progress in High Power Fiber Lasers, SPIE, vol. 5335, p. 210-216, 2004.
J. Dawson et al. Large flattened mode optical fiber for reduction of nonlinear effects in optical fiber lasers, SPIE, vol. 5335, p. 132-139, 2004.
J.P. Koplow et al., Single-mode operation of a coiled multimode amplifier, Optica Letters, vol. 25 No. 7, p. 442-444, 2000.
R. Scheps, Laser Diode-Pumped Solid State Lasers, SPIE Press, Bellingham, p. 41-43, 2002.
Anping Liu et al. Spectral Beam Combining of High Power Fiber Lasers, SPIE, vol. 5335, p. 81-88, 2004.
Philip C.D. Hobbs, Building Electro-Optical System, John Wiley & Sons, Inc., NY, p. 27-28, 2000.
S. Augst et al., Coherent beam combining and phase noise measurements of ytterbium fiber amplifiers, Optics Letters, vol. 29 No. 5, p. 474-476, 2004.
E. Cheung et al., Mode-locked pulsed fiber array scalable to high power, SPIE, vol. 5335, p. 98-105, 2004.
P. Jakobsen et al, Diode-laser array modes: discrete and continuous models and their stability, J. Opt. Soc. Am. B, vol. 8 No. 8, p. 1674-1680, 1991.
C. Corcoran, R. Rediker, Operation of Five Individual Diode Lasers as a Coherent Ensemble by Fiber Coupling into an External Cavity,Appl.Phys.Lett vol. 59 p. 759-761,1991.
R. Moyer et al., Beam combination through stimulated Brillouin scattering, J. Opt. Soc. Am. B, vol. 5 No. 12, pp. 2473-2489, 1988.
M.L. Minden et al., Self-Organized Coherence in Fiber Laser Arrays, SPIE, vol. 5335, p. 89-97, 2004.
D.A. Rockwell, C.R. Giuliano, Coherent coupling of laser gain media using phase conjugation, Optics Letters, vol. 11 No. 3, 147-149, 1986.
B. Grime et al. Phasing of a two-channel continuous-wave master oscillator-power amplifier by use of a fiber phase-conjugate mirror, Opt. Lett., vol. 30, p. 2415-2417, 2005.
R. Beach et al, Scalable antiguided ribbon laser, J. Opt. Soc. Am. B, vol. 19 No. 7, p. 1521-1534, 2002.
P.K. Cheo et al. A High-Brightness Laser Beam From a Phase-Locked Multicore Yb-Doped Fiber Laser Array, IEEE PTL, vol. 13 No. 5, p. 439-441, 2001.
P.K. Cheo et al. Recent Advances in High-Power and High Energy Multicore Fiber Lasers, SPIE, vol. 5335, p. 106-115, 2004.
E. Bochove et al., Nonlinear mode competition and phasing in Yb-doped fiber amplifier, SPIE, vol. 5335, p. 151-157, 2004.
I. Ciapurin et al., Incoherent combining of 100-W Yb-fiber laser beams by PTR Bragg grating, SPIE, vol. 4974, p. 209-219, 2003.
L. Lombard et al., Diffraction-limited polarized emission from a multimode ytterbium fiber amplifier after a nonlinear beam converter, Opt Lett, vol. 29 No. 9, p. 989-991, 2004.
D. Shepherd et al., High-power planar dielectric waveguide lasers, J. of Physics D: Appl. Physics, 34, p. 2420-2432, 2001.
X. Ye et al., Diode pumped 18W Long Nd: glass Waveguide Laser, 21st Annual Conf. on Advanced solid state phototonics, Report TuB17, 2006.
Theodor Tamir, (Ed.) Guided-Wave Optoelectronics, Springer-Verlag, Berlin, p. 18-20, p. 62-63, 1988.
A. Siegman, Lasers, University Science Books, Mill Valley, p. 558-565, 1986.
V. Gapontsev et al., 2 kW CW ytterbium fiber laser with record diffraction-limited brightness, 2005 Conf. on Laser and Electro-Optics Europe, Munich, p. 508.
A. Sharma et al., Tracing rays through graded-index media: a new method, Appl. Opt., v. 21 No. 6, p. 984-987, 1982.
A. E. Siegman, Propagating modes in gain-guided optical fibers, J. Opt. Soc. Am. A, vol. 20 No. 8, p. 1617-1628, 2003.
Born et al. “The Refracting Telescope”, Principles of Optics, Electromagnetic Theory of Propagation, Interference and Diffraction of Light, Chapter 6.3, pp. 267-268, Cambridge University Press, 1968.
Neumann “Wave Beam Guided by a Straight Single-Mode Fiber”, Chapter 2.2-2.4, pp. 12-16, Single-Mode Fibers Fundamentals, Springer-Verlag, NY, 1988.
Neumann “The Fundamental Fiber Mode”, Chapter 5, pp. 61-141, Single-Mode Fibers Fundamentals, Springer-Verlag, NY, 1988.
Tamir “Waveguide Horns”, Chapter 3.5, pp. 125-134, Guided-Wave Optoelectronics, Springer-Verlag, Berlin, 1988.
Bass et al “Optical Elements”, pp. 6.22, Handbook of Optics, vol. 11, Devices, Measurements and Properties, McGraw-Hill, Inc. NY, 1995.
Bass et al. “Axial Gradient Lenses”, pp. 9.5, Handbook of Optics, vol. 11, Devices, Measurements and Properties, McGraw-Hill, Inc. NY, 1995.
Taverner et al. “158-uJ Pulses from a Single-Transverse-Mode, Large-Mode-Area Erbium-Doped Fiber Amplifier”, pp. 378-380, Optics Letters, vol. 22, No. 6, Mar. 15, 1997, Optical Society of America.
Arkwright et al. “Experimental and Theoretical Analysis of the Resonant Nonlinearity in Ytterbium-Doped Fiber”, pp. 798-806, Journal of Lightwave Technology, vol. 16, No. 5, May 1998.
Snyder et al. “Step-Profile Waveguides”, Chapter 12, pp. 239-248, Optical Waveguide Theory, Kluwer Academic Pubishers, Boston, 2000.
Koechner “Thermo-Optic Effects and Heat Removal”, Chapter 7, pp. 406-468, Optical Sciences, Solid-State Laser Engineering, Fifth Edition, Springer-Verlag, NY, 2000.
Siegman “Propagating Modes in Gain-Guided Optical Fibers”, pp. 1617-1628, Optical Society of America, vol. 20., No. 8, Aug. 2003.
Hecht “Optical Systems”, Chapter 5.7, pp. 209, Optics, Fourth Edition, Pearson Education, Singapore, 2004.
Witkowska et al. “All-Fiber Anamorphic Core-Shape Transitions”, pp. 2672-2674, Optics Letters, vol. 31, No. 18, Sep. 15, 2006, Optical Society of America.
Ramachandran et al. “Scaling to Ultra-Large-Aeff Using Higher-Order-Mode Fibers”, 2 p
Betin Alexander A.
Rockwell David A.
Shkunov Vladimir V.
Hagan Sean
Harvey Minsun
Pillsbury Winthrop Shaw & Pittman LLP
Raytheon Company
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