Gibson, GM, Dunn, MH, and Padgett, MJ (1998) Application Of A Continuously Tunable, Cw Optical Parametric Oscillator For High-Resolution Spectroscopy. Optics Letters, 23 (1). pp. 40-42. ISSN 0146-9592 (doi:10.1364/OL.23.000040)
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We report the use of a smoothly tunable? single-frequency continuous-wave optical parametric oscillator (OPO) for high-resolution spectroscopy. The OPO is based on potassium titanyl phosphate and is resonant for both signal and idler fields, resulting in a device with a very low pump power threshold of 30 mW. The frequency-selective nature of the doubly resonant oscillator ensures that the signal and idler modes can be tuned across the entire phase-match bandwidth without the need for additional intracavity frequency-selective components. Smooth frequency tuning of the output of the OPO is obtained by tuning of the pump laser. To demonstrate the practicality of our OPO we recorded the absorption spectrum of cesium vapor in the 1-mu m spectral region.
|Keywords:||astigmatism; laser beam propagation; angular momentum of light|
|Glasgow Author(s):||Padgett, Prof Miles|
|Authors:||Gibson, GM, Dunn, MH, and Padgett, MJ|
|College/School:||College of Science and Engineering > School of Physics and Astronomy|
|Journal Name:||Optics Letters|
|Journal Abbr.:||Opt. Lett.|