We report a novel integrated Q-switched laser constructed from a bulk domain-inverted single Nd:LiTaO3 crystal that combines the laser gain and the electro-optic effect. The Q of the cavity is controlled electro-optically by exploitation of the deflection that occurs at the boundary of two oppositely directed domains under the application of an electric field. The integrated Q-switching element, with dimensions of 4.1 mm × 4.6 mm × 1 mm, generates 22-ns pulses at 1.08 μm with a peak power of 64 W and an operating voltage of ~600 V. The output is seen to be completely free from prelasing or afterpulsing.
© 1995 Optical Society of America
Original Manuscript: May 10, 1995
Published: October 1, 1995
Kazi Sarwar Abedin, Kiyoshi Shimamura, Tsuguo Fukuda, Takehiro Tsuritani, Manabu Sato, and Hiromasa Ito, "Integrated electro-optic Q switching in a domain-inverted Nd:LiTaO3 laser," Opt. Lett. 20, 1985-1987 (1995)