Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2011-08-02
2011-08-02
Rodriguez, Armando (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S050120, C372S050124
Reexamination Certificate
active
07991034
ABSTRACT:
A semiconductor surface emitting optical amplifier chip utilizes a zigzag optical path within an optical amplifier chip. The zigzag optical path couples two or more gain elements. Each individual gain element has a circular aperture and includes a gain region and at least one distributed Bragg reflector. In one implementation the optical amplifier chip includes at least two gain elements that are spaced apart and have a fill factor no greater than 0.5. As a result the total optical gain may be increased. The optical amplifier chip may be operated as a superluminescent LED. Alternately, the optical amplifier chip may be used with external optical elements to form an extended cavity laser. Individual gain elements may be operated in a reverse biased mode to support gain-switching or mode-locking.
REFERENCES:
patent: 5131002 (1992-07-01), Mooradian
patent: 6404797 (2002-06-01), Mooradian
patent: 6778582 (2004-08-01), Mooradian
patent: 6898225 (2005-05-01), Mooradian
patent: 7189589 (2007-03-01), Carey et al.
patent: 7322704 (2008-01-01), Schchegrov
patent: 2003/0012246 (2003-01-01), Kimek et al.
patent: 2006/0176544 (2006-08-01), Wasserbauer
patent: 2006/0251141 (2006-11-01), Mefferd et al.
patent: 2008/0175289 (2008-07-01), Tiberi et al.
patent: 2009034269 (2009-09-01), None
B. Comaskey et al, “High Average Power Diode Pumped Slab Laser”, IEEE Journal, vol. 28, No. 4, Apr. 1992, pp. 992-996.
A. Farinas et al, “Design and Characterization of a 5.5-W, CW, Injection-Locked, Fiber-coupled, Laser-Diode-Pumped Nd: Yag Miniture-Slab Laser”, Optics Letters, vol. 19, No. 2, Jan. 1994, pp. 114-116.
T.J. Kane, et al, “Reduced Thermal Focusing and Birefringence in Zig-Zag Slab Geometry Crystalline Lasers”, IEEE Journal, vol. QE-19, No. 9, Sep. 1983, pp. 1351-1354.
W. Koechner, “Solid-State Laser Engineering”, Springer-Verlag New York, Hiedelberg, Berlin, 1976, 7 pages.
A. Mandl et al, “Energy Scaling and Beam Quality Studies of a Zigzag Solid-State Plastic Dye Laser”, IEEE Journal, vol. 32, No. 10, Oct. 1996, pp. 1723-1726.
Koninklijke Philips Electronics , N.V.
Philips Lumileds Lighting Company LLC
Rodriguez Armando
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