通过直接飞秒激光写入制备的掺钕钒酸镥连续波通道波导激光器。

Continuous wave channel waveguide lasers in Nd:LuVO4 fabricated by direct femtosecond laser writing.

作者信息

Ren Yingying, Dong Ningning, Macdonald John, Chen Feng, Zhang Huaijin, Kar Ajoy K

机构信息

School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.

出版信息

Opt Express. 2012 Jan 30;20(3):1969-74. doi: 10.1364/OE.20.001969.

DOI:10.1364/OE.20.001969

PMID:22330438

Abstract

Buried channel waveguides in Nd:LuVO<4 were fabricated by femtosecond laser writing with the double-line technique. The photoluminescence properties of the bulk materials were found to be well preserved within the waveguide core region. Continuous-wave laser oscillation at 1066.4 nm was observed from the waveguide under ~809 nm optical excitation, with the absorbed pump power at threshold and laser slope efficiency of 98 mW and 14%, respectively.

摘要

采用飞秒激光直写双线技术在Nd:LuVO₄中制备了掩埋通道波导。发现块状材料的光致发光特性在波导芯区得到了很好的保留。在约809 nm光激发下，从波导中观察到了1066.4 nm的连续波激光振荡，阈值处的吸收泵浦功率和激光斜率效率分别为98 mW和14%。