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Optics Letters

Optics Letters


  • Vol. 21, Iss. 1 — Jan. 1, 1996
  • pp: 86–88

Detection of CO in air by diode-pumped 4.6-μm difference-frequency generation in quasi-phase-matched LiNbO3

K. P. Petrov, L. Goldberg, W. K. Burns, R. F. Curl, and F. K. Tittel  »View Author Affiliations

Optics Letters, Vol. 21, Issue 1, pp. 86-88 (1996)

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Detection of CO, N2O, and CO2 in ambient air was performed with a room-temperature cw IR source based on difference-frequency generation in periodically poled LiNbO3. The source was pumped by a seeded high-power GaAlAs amplifier at 860 nm and a diode-pumped monolithic Nd:YAG ring laser at 1064 nm. The IR output was tunable between 2160 and 2320 cm−1 without crystal rotation. The CO detection sensitivity is extrapolated to 5  ppb m / Hz if limited by IR intensity noise.

© 1996 Optical Society of America

Original Manuscript: August 10, 1995
Published: January 1, 1996

K. P. Petrov, L. Goldberg, R. F. Curl, F. K. Tittel, and W. K. Burns, "Detection of CO in air by diode-pumped 4.6-μm difference-frequency generation in quasi-phase-matched LiNbO3," Opt. Lett. 21, 86-88 (1996)

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  1. L. Goldberg, W. K. Burns, R. W. McElhanon, Opt. Lett. 20, 1280 (1995). [CrossRef] [PubMed]
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