| Autor: |
Petrov KP; Gemfire Corporation, Suite 600, 2471 East Bayshore Road, Palo Alto, California 94303, USA., Ryan AT, Patterson TL, Huang L, Field SJ, Bamford DJ |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 1998 Jul 01; Vol. 23 (13), pp. 1052-4. |
| DOI: |
10.1364/ol.23.001052 |
| Abstrakt: |
We report spectroscopic gas detection by the use of mid-infrared difference-frequency mixing of two diode lasers in a channel waveguide. The waveguide was fabricated by annealed proton exchange in periodically poled lithium niobate. We generated 3.43-3.73-microm tunable radiation in a single waveguide at room temperature by mixing diode lasers near 780 and 1010 nm. High-resolution spectra of methane were obtained in 2 s with electronically controlled frequency scans of 45 GHz. The use of highly efficient waveguide frequency converters pumped by fiber-coupled diode lasers will permit construction of compact, solid-state, room-temperature mid-infrared sources for use in trace-gas detection. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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