Development of a two-wavelength OPO generating 270-mJ infrared pulses for medical applications

Author

Sumiyoshi, Tetsumi ; Otani, Yoshio ; Matsumoto, Satoko ; Sekita, Hitoshi ; Okagami, Yoshihide ; Obara, Minoru

Author_Institution

Cyber Laser Inc., Tokyo, Japan

Volume

2

fYear

2004

fDate

7-11 Nov. 2004

Firstpage

807

Abstract

An optical parametric oscillator (OPO) pumped by a pulsed LD-pumped Nd:YAG laser that simultaneously emits two infrared radiation in 1.7 and 3 μm regions is developed. In order to efficiently perform on the wavelength mixing, a periodically poled lithium niobate (PPLN) in the OPO resonator is employed. The total output energy obtained was 270 mJ consisting of 120 mJ in the 3 μm region and 150 mJ in the 1.7 μm region at a repetition rate of 40 Hz and a pulse duration of 500 μs.

Keywords

infrared sources; light coherence; lithium compounds; multiwave mixing; optical parametric oscillators; optical pulse generation; optical pumping; 1.7 mum; 120 mJ; 150 mJ; 270 mJ; 3 mum; 40 Hz; 500 mus; LiNbO₃; OPO; YAG:Nd; YAl5O12:Nd; infrared pulses; medical applications; optical parametric oscillator; periodically poled lithium niobate; pulsed LD-pumped laser; wavelength mixing; Biomedical equipment; Biomedical optical imaging; Medical services; Nonlinear optics; Optical mixing; Optical pulse generation; Optical pumping; Optical resonators; Pulse generation; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE

Print_ISBN

0-7803-8557-8

Type

conf

DOI

10.1109/LEOS.2004.1363486

Filename

1363486