Nec Corporation

Jan De Merli

Koji Kudo

Kenji Sato

Kenji Mizutani

Shinya Sudo

Mads L Nielsen

In an external cavity wavelength tunable laser device including an external cavity () which includes a semiconductor optical amplifier () and performs laser oscillation operation by feeding back external light, a wavelength tunable mirror () having at least a single peak reflection spectrum characteristic within a laser wavelength tuning range is placed on one end of the external cavity (), and a Fabry Perot mode interval determined by the effective length of the external cavity () 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 ().

External cavity wavelength tunable laser device and optical output module

In an external cavity wavelength tunable laser device including an external cavity () which includes a semiconductor optical amplifier () and performs laser oscillation operation by feeding back external light, a wavelength tunable mirror () having at least a single-peak reflection spectrum characteristic within a laser wavelength tuning range is placed on one end of the external cavity (), and a Fabry-Perot mode interval determined by the effective length of the external cavity () 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 ().

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Tokyo, Japan

Jan De Merli