Mid-infrared spectroscopic detection of trace gases using guided-wave difference-frequency generation

被引：20

作者：

Petrov, KP ^{[1
]}

Ryan, AT ^{[1
]}

Patterson, TL ^{[1
]}

Huang, L ^{[1
]}

Field, SJ ^{[1
]}

Bamford, DJ ^{[1
]}

机构：

[1] Gemfire Corp, Palo Alto, CA 94303 USA

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 1998年 / 67卷 / 03期

关键词：

D O I：

10.1007/s003400050516

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report spectroscopic detection of methane and water vapor using mid-infrared difference-frequency generation of diode lasers in channel waveguides at room temperature. Waveguides with two different designs were fabricated using annealed proton exchange in periodically poled lithium niobate. One waveguide produced tunable radiation between 3.33 mu m and 3.73 mu m and the other produced tunable radiation between 2.65 mu m and 2.90 mu m. High-resolution spectra of methane (at 6.7 kPa) and water vapor (in ambient air) were obtained using electronically controlled frequency scans of up to 65 GHz. The use of diode lasers and highly efficient waveguide frequency converters in conjunction with fiber coupling will permit construction of compact, solid-state, room-temperature, mid-infrared sources for use in trace-gas detection.

引用

页码：357 / 361

页数：5

共 15 条

[1]

ARBORE MA, 1996, CLEO 96, V10, P120

[2] MODELING AND EXPERIMENTAL-OBSERVATION OF PARAMETRIC FLUORESCENCE IN PERIODICALLY POLED LITHIUM-NIOBATE WAVE-GUIDES [J].