Fujitsu Corporation

Yuji Nishikawa

Hiroshi Takigawa

Atsushi Takeuchi

Shunichi Muto

A cooling device of a laser diode array includes a stacking of a plurality of metal plate members formed with a branched groove pattern or apertures acting as a cooling water path, by a chemical etching process.

Method of making a cooling device of a planar light source

Fabrication of cooling device of a planar light source

Cooling device of a planar light source

A light switching apparatus includes an optically non-linear etalon, a first optical part for applying a signal light of a linear polarization to the optically non-linear etalon, and a second optical part for applying a control light of a circular polarization or elliptical polarization to the optically non-linear etalon. The control light varies a refractive index of an optically non-linear substance of the optically non-linear etalon to thereby perform a switching operation on the signal light.

Growing community of inventors

Kawasaki, Japan

Yuji Nishikawa