Semiconductor optical amplifier

Details Semiconductor optical amplifier Semiconductor optical amplifier

2006-03-28

2008-12-02

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S050110, C372S050100, C372S050121

Reexamination Certificate

active

07460576

ABSTRACT:
A semiconductor optical amplifier according to the present invention comprises a lower cladding layer of a first conductive type, an upper cladding layer of a second conductive type, an active layer, and a diffraction grating layer. The lower cladding layer includes first and second regions. The first and second regions are arranged in a predetermined direction, and the upper cladding layer is supported by the first region. The active layer is provided between the first region of the lower cladding layer and the upper cladding layer, and the diffraction grating layer has a diffraction grating. The diffraction grating extends in the predetermined direction. The diffraction grating layer is supported by the second region, and the diffraction grating layer is optically coupled to the active layer.

REFERENCES:
patent: 5084894 (1992-01-01), Yamamoto
patent: 5233187 (1993-08-01), Sakata et al.
patent: 5299045 (1994-03-01), Sekiguchi
patent: 5771254 (1998-06-01), Baldwin et al.
patent: 6163557 (2000-12-01), Dunnrowicz et al.
patent: 6785430 (2004-08-01), Paniccia
patent: 2003/0063647 (2003-04-01), Yoshida et al.
Michael J. Connelly, “Semiconductor Optical Amplifiers”, Publications, pp. 111-113, Mar. 27, 2002.

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