Refractive index and dispersion control of ultrafast laser inscribed waveguides in gallium lanthanum sulphide for near and mid-infrared applications.
Refractive index and dispersion control of ultrafast laser inscribed waveguides in gallium lanthanum sulphide for near and mid-infrared applications.
复制标题
DOI：
10.1364/oe.24.006350
复制
发表时间：
2016-03
期刊：
影响因子：
3.8
通讯作者：
G. Demetriou;J. Bérubé;R. Vallée;Y. Messaddeq;C. Petersen;D. Jain;O. Bang;C. Craig;D. Hewak;A. Kar
中科院分区：
文献类型：
--
作者：
G. Demetriou;J. Bérubé;R. Vallée;Y. Messaddeq;C. Petersen;D. Jain;O. Bang;C. Craig;D. Hewak;A. Kar
利用超快激光刻蚀技术在镓镧硫化物基片上制备光波导。首次实验测量了这种超快激光刻写波导的折射率分布和色散。此外，还通过实验确定了波导和体衬底的零色散波长。波导的零色散波长在3.66 ~ 3.71 μm之间，体材料的零色散波长约为3.61 μm。这项工作为在镓镧硫化物玻璃中实现近红外和中红外应用的超快激光刻写波导器件铺平了道路。
The powerful ultrafast laser inscription technique is used to fabricate optical waveguides in gallium lanthanum sulphide substrates. For the first time the refractive index profile and the dispersion of such ultrafast laser inscribed waveguides are experimentally measured. In addition the Zero Dispersion Wavelength of both the waveguides and bulk substrate is experimentally determined. The Zero Dispersion Wavelength was determined to be between 3.66 and 3.71 μm for the waveguides and about 3.61 μm for the bulk. This work paves the way for realizing ultrafast laser inscribed waveguide devices in gallium lanthanum sulphide glasses for near and mid-IR applications.