单频光纤激光器，工作波长 2.9μm。

Single-frequency fiber laser operating at 2.9 μm.

机构信息

Centre for Ultrahigh-bandwidth Devices for Optical Systems, Institute for Photonics and Optical Science, School of Physics, The University of Sydney, NSW, Australia.

出版信息

Opt Lett. 2013 Jul 15;38(14):2388-90. doi: 10.1364/OL.38.002388.

DOI:10.1364/OL.38.002388

PMID:23939057

Abstract

We report the demonstration of a single-longitudinal-mode fiber laser operating at 2914 nm, which exhibits a spectrometer-limited linewidth of <0.4 nm, in a 49 mm long holmium/praseodymium co-doped ZBLAN fiber. Narrow-linewidth feedback is provided by a fiber Bragg grating inscribed directly in the ZBLAN fiber using the femtosecond laser point-by-point technique. Measurements of the temporal stability and coherence confirm that the laser is operating on a single longitudinal mode.

摘要

我们报告了一种在 2914nm 下工作的单纵模光纤激光器的演示，该激光器在 49mm 长的掺钬/镨共掺 ZBLAN 光纤中，表现出光谱仪限制的线宽<0.4nm。窄线宽反馈由直接在 ZBLAN 光纤中使用飞秒激光逐点技术写入的光纤布拉格光栅提供。对时间稳定性和相干性的测量证实了激光器工作在单纵模上。