Abstract

Coupled-cavity electro-optically-Q-switched microchip lasers¹ were constructed from 440-μm-long pieces of 1.1-wt.% Nd:YVO₄ bonded to 900-μm-long pieces of LiTaO₃, as illustrated in Fig. 1. Both materials were polished flat and parallel on the two faces normal to the cavity axis and were oriented with their c axes parallel to each other, orthogonal to the cavity axis. Electrodes were deposited on the faces of the LiTaO₃ normal to the c axis, with an electrode spacing of ~1 mm. The pump-side faces of the Nd:YVO₄ were coated dielectrically to transmit the pump light and to be highly reflective at the oscillating wavelength (1.064 μm). Greater than 90% of the incident 808-nm pump light from a butt-coupled fiber was absorbed by the gain medium.

© 1995 Optical Society of America