超快激光写入硫化镧镓波导中的中红外光谱展宽

Mid-infrared spectral broadening in an ultrafast laser inscribed gallium lanthanum sulphide waveguide.

作者信息

McCarthy John E, Bookey Henry T, Psaila Nicholas D, Thomson Robert R, Kar Ajoy K

机构信息

Scottish University Physics Alliance, Department of Physics, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, United Kingdom.

出版信息

Opt Express. 2012 Jan 16;20(2):1545-51. doi: 10.1364/OE.20.001545.

DOI:10.1364/OE.20.001545

PMID:22274497

Abstract

We report the successful fabrication of mid-infrared waveguides written in a gallium lanthanum sulphide (GLS) substrate via the ultrafast laser inscription technique. Single mode guiding at 2485 nm and 3850 nm is observed. Spectral broadening spanning 1500 nm (-15dB points) is demonstrated under 3850 nm excitation.

摘要

我们报告了通过超快激光写入技术在硫化镧镓（GLS）衬底上成功制备中红外波导的成果。观察到在2485纳米和3850纳米处的单模导光。在3850纳米激发下，展示了跨度为1500纳米（-15分贝点）的光谱展宽。