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

页码：466 / 471

页数：6

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