Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2005-06-29
2008-12-16
Nguyen, Dung T (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S064000
Reexamination Certificate
active
07466736
ABSTRACT:
To provide a semiconductor laser diode and a semiconductor optical amplifier and an optical communication device incorporating the semiconductor laser diode or the semiconductor optical amplifier which enable low power consumption and high optical output. A semiconductor laser diode according to an embodiment of the present invention is a semiconductor laser diode100comprised of an active waveguide, the active waveguide including a first waveguide11athat supplies a plurality of modes including a fundamental mode; and a second waveguide12athat is wider than the first waveguide11aand supplies a multimode, wherein the fundamental mode is provided as an oscillation light oscillated from the active waveguide.
REFERENCES:
patent: 6205163 (2001-03-01), Hamamoto
patent: 11-68241 (1999-03-01), None
patent: 11-68242 (1999-03-01), None
patent: 2000-323781 (2000-11-01), None
patent: 2002-319741 (2002-10-01), None
Lucas B. Soldano, et al., “Optical Multi-Mode Interference Devices Based on Self-Imaging: Principles and Applications”, Journal of Lightware Technology, vol. 13, No. 4, pp. 615-627, Apr. 1995.
De Merlier Jan
Hamamoto Kiichi
NEC Corporation
Nguyen Dung T
Sughrue & Mion, PLLC
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