1. A laser light source comprising:
a plurality of laser diodes that are mounted on a substrate and that emit linearly polarized light; wherein:
said plurality of laser diodes are each provided with a first pin and a second pin and emit linearly polarized light of an
orientation that accords with lines that connect the first pin and the second pin; and
said plurality of laser diodes are arranged such that an orientation of linearly polarized light that is emitted differs for
said plurality of laser diodes.