[OPTICAL REVIEW Vol. 7, No. 6 (2000) 573-575]
Single-Mode Operation of Broad-Area Diode Laser at 670 nm by External Cavity Configuration with a Diffraction Grating
Shunichi SATO,1 Rui TAKADA2 and Humio INABA2
1Institute for Advanced Materials Processing, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577 Japan, 2Tohoku Institute of Technology, 35-1, Yagiyama-kasumi-cho, Taihaku-ku, Sendai, 982-8577 Japan
(Received November 4, 1999; Accepted June 28, 2000)
We demonstrate the single mode operation of a broad-area diode laser at 670 nm by means of an external cavity configuration using a diffraction grating. The output power of 150 mW is obtained with a spectral width of 40 MHz.
Key words : single mode, broad-area diode laser, external cavity, grating