Semiconductor laser device and optical disk recording and...

Details Semiconductor laser device and optical disk recording and... Semiconductor laser device and optical disk recording and...

2006-04-25

2006-04-25

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S046010, C372S004000

Reexamination Certificate

active

07035304

ABSTRACT:
There is provided a semiconductor laser device implementing a single transverse mode oscillation in an oscillation wavelength of 780 nm band and also having high reliability and long life in high-output driving state, and an optical disk recording and reproducing apparatus with use of the semiconductor laser device. A multiple quantum well active layer105is composed of InGaAsP, and a first cladding layer103, a second cladding layer107, a third cladding layer109, and a first current blocking layer112are structured from III–V group compound semiconductor containing only As as V group element. Inside the first current blocking layer112, a hollow portion130is provided in the vicinity of and approximately parallel to the ridge stripe-shaped third cladding layer109.

REFERENCES:
patent: 4864581 (1989-09-01), Nelson et al.
patent: 4935936 (1990-06-01), Nelson et al.
patent: 5319661 (1994-06-01), Irikawa et al.
patent: 5400355 (1995-03-01), Ishida et al.
patent: 5556804 (1996-09-01), Nagai et al.
patent: 6188800 (2000-02-01), Kidoguchi et al.
patent: 6292502 (2001-09-01), Shimada et al.
patent: 6577658 (2003-06-01), Lee et al.
patent: 6852558 (2005-02-01), Lee et al.
patent: 6870870 (2005-03-01), Sakata et al.
patent: 2002/0159493 (2002-10-01), Honkawa et al.
patent: 2002/0187577 (2002-12-01), Sakata et al.
patent: 3064980 (1991-03-01), None

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