Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2011-06-21
2011-06-21
Rodriguez, Armando (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S096000
Reexamination Certificate
active
07965755
ABSTRACT:
Provided is a high-output surface-emitting laser capable of reducing effects on reflectance of an upper reflection mirror in a single transverse mode. The surface-emitting laser includes plural semiconductor layers, laminated on a substrate, which includes a lower semiconductor multilayer reflection mirror, an active layer, and an upper semiconductor multilayer reflection mirror, wherein the lower or upper semiconductor multilayer reflection mirror includes a first semiconductor layer having a two-dimensional photonic crystal structure comprised of a high and low refractive index portions which are arranged in a direction parallel to the substrate, and wherein a second semiconductor layer laminated on the first semiconductor layer includes a microhole which reaches the low refractive index portion, the cross section of the microhole in the direction parallel to the substrate being smaller than the cross section of the low refractive index portion formed in the first semiconductor layer.
REFERENCES:
patent: 6778581 (2004-08-01), Lipson
patent: 7483466 (2009-01-01), Uchida et al.
patent: 7697586 (2010-04-01), Ikuta
patent: 2002/0163947 (2002-11-01), Ostergaard et al.
patent: 2005/0158902 (2005-07-01), Chua et al.
patent: 2006/0245464 (2006-11-01), Hori et al.
patent: 2008/0107145 (2008-05-01), Hori et al.
patent: 2008/0112442 (2008-05-01), Ikuta
patent: 2008/0117942 (2008-05-01), Nagatomo et al.
patent: 2008/0164560 (2008-07-01), Almuneau et al.
patent: 2009/0035884 (2009-02-01), Ikuta
patent: 11-183735 (1999-07-01), None
patent: 2004-109627 (2004-04-01), None
patent: 2005-353623 (2005-12-01), None
patent: 2007-073945 (2007-03-01), None
patent: WO 2006/082322 (2006-08-01), None
H.J. Unold et al., “Photonic Crystal Surface-Emitting Lasers: Tailoring Waveguiding for Single-Mode Emission,” Proceedings of 27th European Conference on Optical Communication (ECOC'01— Amsterdam), Sep. 30-Oct. 4, 2001, IEEE, pp. 520-521.
D.S. Song et al., “Single-Fundamental-Mode Photonic-Crystal Vertical-Cavity Surface-Emitting Lasers,” Applied Physics Letters, vol. 80, No. 21, pp. 3901-3903 (2002).
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Rodriguez Armando
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