SEMICONDUCTOR LASER ARRAY

摘要

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 b a single power supply.

主权项

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