[11p-S202-1~10] 3.5 Laser system and materials

△ [11p-S202-7] 980-nm Picosecond Pulse Generation using Supercontinuum from 1064-nm Gain-Switched Semiconductor Laser Source

〇Yoshiharu Suzuki¹, Xiaomin Wang¹, Shota Sekiguchi¹, Yuichi Takushima¹, Kazuo Sato², Hiroyuki Yokoyama² (1.OPTOQUEST Co. Ltd., 2.NICHe, Tohoku Univ.)

Keywords:ultrashort pulse source, supercontinuum generation, gain-switched semiconductor laser diode

In practical applications of multiphoton excitation microscopy, there exists a strong demand for compact ultrashort-pulse light sources operated in the 900-nm wavelength region with high operational stability. In order to realize such a short-pulse source, we demonstrated a 980-nm all-fiber picosecond pulse source based on super-continuum generation from a gain-switched semiconductor laser operated at 1064nm. In the experiment, we successfully generated 15-ps pulse train with peak power of over 100 W at 980 nm, which is sufficient for multiphoton excitation.