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US 2010/0245990 A1Published application
Semiconductor optical amplifier and optical module
AssigneeFujitsu Limited
InventorsShinsuke Tanaka, Shigeaki Sekiguchi
Life of this patent
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Abstract
A semiconductor optical amplifier includes a semiconductor substrate; an optical waveguide that includes an active layer formed on the semiconductor substrate; and a wavelength selective reflection film that is formed on an end face where signal light is incident on the optical waveguide the wavelength selective reflection film allows transmission of the signal light, and reflects light of any wavelength other than the signal light.
Claims20
A semiconductor optical amplifier comprising:
- a semiconductor substrate;
- an optical waveguide that includes an active layer formed on the semiconductor substrate;
- and
- a wavelength selective reflection film that is formed on an end face of the optical waveguide, transmits signal light, and reflects light of any wavelength other than the signal light.
1 more element
A semiconductor optical amplifier comprising:
- a semiconductor substrate;
- an optical waveguide that includes an active layer formed on the semiconductor substrate;
- and
- a diffraction grating that is formed above and/or below the optical waveguide on a side on which signal light is input to the optical waveguide, transmits the signal light, and reflects light of any wavelength other than the signal light.
1 more element
A optical module comprising:
- a semiconductor optical amplifier including:
- a semiconductor substrate;
- an optical waveguide that includes an active layer formed on the semiconductor substrate;
- and
- a wavelength selective reflection film that is formed on an end face of the optical waveguide, transmits the signal light, and reflects light of any wavelength other than the signal light;
- an optical element that causes the signal light to be incident on the optical waveguide in the semiconductor optical amplifier;
- and
- an optical element that outputs the signal light emitted from the optical waveguide in the semiconductor optical amplifier.
5 more elements
A optical module comprising:
- a semiconductor optical amplifier including:
- a semiconductor substrate;
- an optical waveguide that includes an active layer formed on the semiconductor substrate;
- and
- a diffraction grating that is formed above and/or below the optical waveguide on a side on which signal light is input to the optical waveguide, transmits the signal light, and reflects light of any wavelength other than the signal light;
- an optical element that causes the signal light to be incident on the optical waveguide in the semiconductor optical amplifier;
- and
- an optical element that outputs the signal light emitted from the optical waveguide in the semiconductor optical amplifier.
5 more elements
Dependencies are inferred from the claim text.