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

页码：1329 / 1340

页数：12

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