Performance characteristics of narrow linewidth fiber laser pumped mid-IR difference frequency mixing light source for methane detection
A high-power, narrow-linewidth Yb fiber laser with a fiber Bragg grating (FBG) pumped difference frequency generation (DFG) in a periodically poled lithium niobate (PPLN) crystal was investigated in detail. A mid-IR power of approximately 2.3 microW at 3.3 micrometers with a slope efficiency of 0.85...
| Veröffentlicht in: | Japanese journal of applied physics. - 1996. - 42(2003), 3 vom: 04. März, Seite 1263-7 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , , , |
| Format: | Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2003
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| Zugriff auf das übergeordnete Werk: | Japanese journal of applied physics |
| Schlagworte: | Journal Article NASA Discipline Life Sciences Technologies Non-NASA Center Oxides Niobium 05175J654G lithium niobate 12031-63-9 Ytterbium MNQ4O4WSI1 mehr... |
| Zusammenfassung: | A high-power, narrow-linewidth Yb fiber laser with a fiber Bragg grating (FBG) pumped difference frequency generation (DFG) in a periodically poled lithium niobate (PPLN) crystal was investigated in detail. A mid-IR power of approximately 2.3 microW at 3.3 micrometers with a slope efficiency of 0.85 mW/W2 was achieved. A Doppler-broadened absorption spectrum of CH4 at 3038.497 cm-1 (3.2911 micrometers) was obtained with a 0.1-m long-gas cell at a pressure of 133 Pa. The linewidth of the DFG source was evaluated to be less than 96 MHz from the observed spectral linewidth. Real-time monitoring of CH4 (approximately 1.78 ppm) in ambient air in a multipass cell which has an optical path length of 10 m was also demonstrated |
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| Beschreibung: | Date Completed 08.10.2003 Date Revised 27.10.2019 published: Print Citation Status MEDLINE |