Low-Loss Hollow Waveguide Fibers for Mid-Infrared Quantum Cascade Laser Sensing Applications

被引：45
|
作者：
Patimisco, Pietro [1 ,2 ,3 ]
Spagnolo, Vincenzo [1 ,2 ,3 ]
Vitiello, Miriam S. [4 ,5 ,6 ]
Scamarcio, Gaetano [1 ,2 ,3 ]
Bledt, Carlos M. [7 ]
Harrington, James A. [7 ]
机构：
[1] Univ Bari, CNR IFN, I-70126 Bari, Italy
[2] Univ Bari, Dipartimento Interateneo Fis, I-70126 Bari, Italy
[3] Politecn Bari, I-70126 Bari, Italy
[4] CNR, Dipartimento Sci Fis & Tecnol Mat, I-50125 Florence, Italy
[5] Ist Nanosci CNR, NEST, I-56127 Pisa, Italy
[6] Scuola Normale Super Pisa, I-56127 Pisa, Italy
[7] Rutgers State Univ, Dept Mat Sci & Engn, Piscataway, NJ 08855 USA
来源：
SENSORS | 2013年 / 13卷 / 01期
关键词：
hollow glass waveguide; quantum cascade laser; gas sensing; quartz enhanced photoacoustic spectroscopy;
D O I：
10.3390/s130101329
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We report on single mode optical transmission of hollow core glass waveguides (HWG) coupled with an external cavity mid-IR quantum cascade lasers (QCLs). The QCL mode results perfectly matched to the hybrid HE11 waveguide mode and the higher losses TE-like modes have efficiently suppressed by the deposited inner dielectric coating. Optical losses down to 0.44 dB/m and output beam divergence of similar to 5 mrad were measured. Using a HGW fiber with internal core size of 300 mu m we obtained single mode laser transmission at 10.54 mu m and successful employed it in a quartz enhanced photoacoustic gas sensor setup.
引用
收藏
页码：1329 / 1340
页数：12
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