Semiconductor laser and semiconductor optical integrated device

Details Semiconductor laser and semiconductor optical integrated device Semiconductor laser and semiconductor optical integrated device

2008-08-27

2010-12-14

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S043010, C372S096000, C372S102000

Reexamination Certificate

active

07852894

ABSTRACT:
A semiconductor laser includes an optical waveguide formed on a semiconductor substrate and capable of generating gain by current injection, and a diffraction grating having a phase shift and provided along the optical waveguide over the overall length of the optical waveguide on the semiconductor substrate. The semiconductor laser is configured such that a Bragg wavelength in a region in the proximity of each of the opposite ends of the optical waveguide is longer than a Bragg wavelength in a region in the proximity of the phase shift in a state in which current injection is not performed for the optical waveguide.

REFERENCES:
patent: 5170402 (1992-12-01), Ogita et al.
patent: 5777792 (1998-07-01), Okada et al.
patent: 7130124 (2006-10-01), Ketterson et al.
patent: 63-299390 (1988-12-01), None
patent: 63299390 (1988-12-01), None
patent: 4-100287 (1992-04-01), None
patent: 4-330793 (1992-11-01), None
patent: 06-196799 (1994-07-01), None
patent: 2687526 (1997-12-01), None
Soda, H. et al.; “Stability in Single Longitudinal Mode Operation in GaInAsP/InP Phase-Adjusted DFB Lasers”; IEEE Journal of Quantum Electronics, vol. QE-23, No. 6, pp. 804-814; Jun. 1987.
Japanese Office Action dated Aug. 11, 2009, issued Japanese Patent Application No. 2007-229425.
Japanese Office Action mailed by JPO and corresponding to Japanese application No. 2007-229425 on May 25, 2010, with English translation.

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