Coherent light generators – Particular beam control device – Tuning
Reexamination Certificate
2011-08-02
2011-08-02
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular beam control device
Tuning
C372S092000, C372S099000
Reexamination Certificate
active
07991024
ABSTRACT:
In an external cavity wavelength tunable laser device including an external cavity (20) which includes a semiconductor optical amplifier (2) and performs laser oscillation operation by feeding back external light, a wavelength tunable mirror (7) having at least a single-peak reflection spectrum characteristic within a laser wavelength tuning range is placed on one end of the external cavity (20), and a Fabry-Perot mode interval determined by the effective length of the external cavity (20) is not less than 1/10 times and not more than 10 times the reflection band full width half maximum of the wavelength tunable mirror (7).
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De Merli Jan
Kudo Koji
Mizutani Kenji
Nielsen Mads. L
Sato Kenji
Harvey Minsun
NEC Corporation
Nguyen Phillip
Sughrue & Mion, PLLC
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