掺镱氟化锂平面波导激光器，中心波长 1.9μm。

Tm:LiYF4 planar waveguide laser at 1.9 μm.

机构信息

Centre de Recherche sur les Ions, les Matériaux et la Photonique (CIMAP), UMR 6252 CEA-CNRS-Ensicaen, Université de Caen, 6 Boulevard Maréchal Juin, 14050, Caen-France.

出版信息

Opt Lett. 2012 Oct 1;37(19):4032-4. doi: 10.1364/OL.37.004032.

DOI:10.1364/OL.37.004032

PMID:23027269

Abstract

Continuous wave laser operation at 1.87 μm of liquid-phase epitaxially (LPE) grown Tm(3+)-doped YLiF(4) (Tm:YLF) layers is demonstrated. The waveguide laser delivers 560 mW by pumping with a Ti:Sapphire laser at 780 nm leading to an efficiency of 76% with respect to the absorbed pump power. This constitutes the first Tm(3+)-doped crystalline fluoride waveguide laser ever demonstrated as well as a record in efficiency and output power for an LPE grown waveguide laser operating in the 2 μm spectral range.

摘要

连续波激光在液相外延（LPE）生长的掺铥（Tm）-YLiF4（Tm:YLF）薄膜中实现了 1.87μm 的激射。通过在 780nm 的钛宝石激光器抽运，波导激光器输出 560mW 的光，相对于吸收的泵浦功率，其效率达到 76%。这是首个掺铥（Tm）-氟化物晶体波导激光器，同时也是在 2μm 光谱范围内，LPE 生长波导激光器的效率和输出功率的记录。