Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Reexamination Certificate
2005-05-03
2005-05-03
Le, Hoanganh (Department: 2828)
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
C372S036000, C372S069000, C372S070000
Reexamination Certificate
active
06888871
ABSTRACT:
A vertical cavity surface emitting laser (VCSEL) device with improved power and beam characteristics. The VCSEL device contains one VCSEL or an array of VCSELs. Each VCSEL has a corresponding integrated microlens, and a heat sink is attached to the device side of the VCSEL device. The heat sink allows improved heat dissipation, and therefore provides improved power characteristics of the VCSEL device output laser beam. The microlens or microlens array allows easier and more compact focussing of the VCSEL device output laser beam. The VCSEL device can be used in a variety of optical systems, and its improved power and focusing characteristics provide a compact, low power, low cost laser system.
REFERENCES:
patent: 4856015 (1989-08-01), Matsui et al.
patent: 5073041 (1991-12-01), Rastani
patent: 5359447 (1994-10-01), Hahn et al.
patent: 5455836 (1995-10-01), Li et al.
patent: 5483511 (1996-01-01), Jewell et al.
patent: 5488619 (1996-01-01), Injeyan et al.
patent: 5495494 (1996-02-01), Molva et al.
patent: 5513204 (1996-04-01), Jayaraman
patent: 5538919 (1996-07-01), Lebby et al.
patent: 5654228 (1997-08-01), Shieh et al.
patent: 5761227 (1998-06-01), Hargis et al.
patent: 5784396 (1998-07-01), Guerin
patent: 5796771 (1998-08-01), DenBaars et al.
patent: 5805759 (1998-09-01), Fukushima
patent: 5812571 (1998-09-01), Peters
patent: 5831960 (1998-11-01), Jiang et al.
patent: 5982802 (1999-11-01), Thony et al.
patent: 6021146 (2000-02-01), Jiang et al.
patent: 6021147 (2000-02-01), Jiang et al.
patent: 6044100 (2000-03-01), Hobson et al.
patent: 6121983 (2000-09-01), Fork et al.
patent: 6122109 (2000-09-01), Peake et al.
patent: 6376269 (2002-04-01), Chen et al.
patent: 0523 861 (1993-01-01), None
patent: 0653 824 (1995-05-01), None
patent: WO 9740558 (1997-10-01), None
P. Laporta et al.; “Erbium-ytterbium microlasers: optical properties and lasing characteristics”; Jan. 1999.*
“Erbium-ytterbium microlaser; optical properties and lasing characteristics” by P. Laporta et al.,Optical Materials 11(Jan. 1999) pp. 269-288.
“Experimental analysis and theortical modeling of a diode-pumped Er:Yb:glass micrpchip laser” by S. Taccheo et al.,OPTICS LETTERS, Apr. 15, 1995, vol. 20, No. 8 pp. 889-891.
“Diode-pumped cw bulk Er:Yb:glass laser” by P. Laporta et al.,OPTICS LETTERS, vol. 16, No. 24, Dec. 15, 1991.
Thibeault et al, “High-Speed Characteristics of Low-Optical Loss Oxide-Apertured Verical-Cavity Lasers,” IEEE Photonics Technology Letters, IEEE Inc. New York, U.S. vol. 9, NO. 1, 1997 pp. 11-13 XP000640874.
Chen, “A comparative Study on the Thermal Characteristics of Vertical-Cavity Surface-Emitting Lasers,” Journal of Applied Physics, American Institute of Physics, New York, US, vol. 77, No. 9, May 1, 1995 pp. 4251-4258, XP000504592.
Du et al., “Directional Beam Control Using On/Off-Axis High-Efficiency Diffractive Optics Integrated On substrate-Emitting Vertical-Cavity Lasers” Conference on Lasers and Electo-Optics (CLEO), Baltimore, May 22-26, 1995, IEEE, U.S., vol. CONF. 15, May 22, 1995, pp. 195-196, XP002035656.
Ghosh Chuni L.
Watkins Laurence S.
Zhang Jiamin
Zhang Kaiyan
Al-Nazer Leith
Le Hoang-anh
Pillsbury & Winthrop LLP
Princeton Optronics, Inc.
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