Mitsubishi Electric Corporation

Mitsuaki Futami

Toru Yoshihara

Yuki Hasegawa

Tetsuya Nishimura

Shinji Yagyu

It is an object to provide a technique of achieving a high in-plane mounting density of a laser light source element and capable of adjusting a position of a lens for each laser light source element with a high degree of accuracy. A laser light source apparatusincludes: a base; a plurality of semiconductor laser elements; a plurality of lenses parallelizing laser light being output from the plurality of laser light source elements; a spacer disposed on the upper surface of the base; and an adhesive agent fixing the plurality of lenses to the spacer. The spacer includes, for each of the lenses, an annular support surface and a wall, and the wall has a clearance groove formed along a direction connecting diagonal points of the lattice points.

Laser light source apparatus and method of manufacturing the same

In a semiconductor laser array of the present invention, a plurality of laser elements (first to fifth laser elements) are disposed such that waveguides of the laser elements are parallel to one another, each of the plurality of laser elements includes a front-end-surface reflection film on a front end surface serving as a light emitting surface of the waveguide, each of the plurality of laser elements includes a rear-end-surface reflection film on a rear end surface opposite to the front end surface with the waveguide sandwiched between the front end surface and the rear end surface, the front-end-surface reflection films of at least two of the plurality of laser elements have different reflectances, the rear-end-surface reflection films of the plurality of laser elements have the same reflectance, and the plurality of laser elements are driven by a single power supply.

Semiconductor laser array

A semiconductor laser light source includes a semiconductor laser block mounted on a stem which is a support base, the semiconductor laser block which is a block has a plurality of surfaces, and a plurality of semiconductor laser chips emit laser light beams of different wavelengths, respectively. Each of the semiconductor laser chips is mounted on each surface of the semiconductor laser block.

Growing community of inventors

Tokyo, Japan

Mitsuaki Futami