Mid-infrared waveguides in zinc sulfide crystal

被引：25
|
作者：
An, Qiang [1 ,2 ]
Ren, Yingying [1 ,2 ]
Jia, Yuechen [1 ,2 ]
Rodriguez Vazquez de Aldana, Javier [3 ]
Chen, Feng [1 ,2 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Minist Educ, Sch Phys, Jinan 250100, Peoples R China
[2] Shandong Univ, Key Lab Particle Phys & Particle Irradiat, Minist Educ, Jinan 250100, Peoples R China
[3] Univ Salamanca, Laser Microproc Grp, E-37008 Salamanca, Spain
来源：
OPTICAL MATERIALS EXPRESS | 2013年 / 3卷 / 04期
基金：
中国国家自然科学基金;
关键词：
SLOPE EFFICIENCY; LASER; OPERATION; SILICA;
D O I：
10.1364/OME.3.000466
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Depressed cladding optical waveguides have been fabricated in a zinc sulfide (ZnS) crystal by femtosecond laser inscription. The structures support single-or multi-mode guidance at the mid-infrared wavelength of similar to 4 mu m. The two-dimensional refractive index profiles of the single-mode waveguides have been reconstructed, and the modal profiles of TE and TM modes were calculated numerically, that show very good agreement with the measured near-field modal profiles. The minimum propagation losses of the multimode cladding waveguides at 4 mu m were similar to 1.1 dB/cm for the TE polarization and similar to 1.3 dB/cm for the TM polarization. (C) 2013 Optical Society of America
引用
收藏
页码：466 / 471
页数：6
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