SEMICONDUCTOR LASER DEVICE
First Claim
1. A semiconductor laser device that comprises a semiconductor laser chip and a spatial light modulator optically coupled to the semiconductor laser chip, and modulates a laser beam output along a thickness direction of the semiconductor laser chip by the spatial light modulator and outputs the laser beam to the outside, whereinthe semiconductor laser chip includes:
- an active layer;
a pair of cladding layers sandwiching the active layer;
a diffractive grating layer optically coupled to the active layer; and
a drive electrode that is disposed between the cladding layer on the spatial light modulator side and the spatial light modulator, and supplies an electric current to the active layer, andin a case where an XYZ three-dimensional orthogonal coordinate system is set,a thickness direction of the semiconductor laser chip is set as a Z-axis direction, anda plane parallel to an interface between the semiconductor laser chip and the spatial light modulator is set as an XY plane,the drive electrode is positioned within the XY plane,the drive electrode has a plurality of openings as viewed from the Z-axis direction, andthe drive electrode has a non-periodic structure.
1 Assignment
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Accused Products
Abstract
This semiconductor laser device includes a semiconductor laser chip and a spatial light modulator SLM optically coupled to the semiconductor laser chip. The semiconductor laser chip LDC includes an active layer 4, a pair of cladding layers 2 and 7 sandwiching the active layer 4, a diffraction grating layer 6 optically coupled to the active layer 4, and a drive electrode E3 that is disposed between the cladding layer 2 and the spatial light modulator SLM and supplies an electric current to the active layer 4, and the drive electrode E3 is positioned within an XY plane and has a plurality of openings as viewed from a Z-axis direction and has a non-periodic structure.
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Citations
6 Claims
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1. A semiconductor laser device that comprises a semiconductor laser chip and a spatial light modulator optically coupled to the semiconductor laser chip, and modulates a laser beam output along a thickness direction of the semiconductor laser chip by the spatial light modulator and outputs the laser beam to the outside, wherein
the semiconductor laser chip includes: -
an active layer; a pair of cladding layers sandwiching the active layer; a diffractive grating layer optically coupled to the active layer; and a drive electrode that is disposed between the cladding layer on the spatial light modulator side and the spatial light modulator, and supplies an electric current to the active layer, and in a case where an XYZ three-dimensional orthogonal coordinate system is set, a thickness direction of the semiconductor laser chip is set as a Z-axis direction, and a plane parallel to an interface between the semiconductor laser chip and the spatial light modulator is set as an XY plane, the drive electrode is positioned within the XY plane, the drive electrode has a plurality of openings as viewed from the Z-axis direction, and the drive electrode has a non-periodic structure. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification