Abstract.
We report difference-frequency generation (DFG) in periodically poled lithium niobate (PPLN) around 4.25 μm using a cw Nd:YAG and an injection-locked diode laser. This system provides a narrow linewidth source at 4.25 μm with near-shot-noise-limited operation. A conversion efficiency close to the theoretical limit is obtained. Detection of CO2 absorption spectra is demonstrated and further improvements and applications to high sensitivity spectroscopy are discussed.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
Author information
Authors and Affiliations
Additional information
Received: 12 August 1999 / Revised version: 21 January 2000 / Published online: 24 March 2000
Rights and permissions
About this article
Cite this article
Mazzotti, D., De Natale, P., Giusfredi, G. et al. Difference-frequency generation in PPLN at 4.25 μm: an analysis of sensitivity limits for DFG spectrometers . Appl Phys B 70, 747–750 (2000). https://doi.org/10.1007/s003400000263
Issue Date:
DOI: https://doi.org/10.1007/s003400000263