Chiba University

Tomohisa Endo

Kiyofumi Muro

Yuji Wakabayashi

Daisuke Fukuoka

Kiyohumi Muro

Ken Kitahara

Yasutaka Shimada

A tunable external resonator laser is mode-hop-free for broadband and has a laser chip which emits light;

External resonator laser

Disclosed is an ASE-free continuously tunable external resonator laser in which reduction in tuning range and decrease in output are suppressed. The external resonator laser comprises: a fixed support body which has a half mirror that partially reflects incident light and partially transmits incident light fixed therein; and a rotatory support body which is rotatably supported by the fixed support body by way of a shaft, and which has a laser chip that emits light, a collimator lens that collimates light emitted from the laser chip, and a diffraction grating that diffracts light emitted from the laser chip, fixed therein.

Tunable external resonator laser

Growing community of inventors

Chiba, Japan

Tomohisa Endo