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- Title
Simultaneous collinear and non-collinear parametric generation in 1D single grating periodically poled lithium tantalate.
- Authors
Lazoul, Mohamed; Boudrioua, Azzedine; Simohamed, Lotfy; Fischer, Alexis; Peng, Lung
- Abstract
We report a detailed study of multiple wavelengths optical parametric generation in a single grating one-dimensional periodically poled lithium tantalate crystal. Simultaneous collinear and non-collinear generations are observed around the pump collinear direction. Similar spectra are found in continuous spatial positions symmetrical to the collinear direction, with decreasing signal and increasing idler wavelengths, associated with decreasing powers when the far-field angle increases. A phase matching scheme is proposed to describe these interactions. Numerical simulations emphasize the agreement of our phase matching scheme with the experimental results. Single-pass gain and high pump power density are very likely at the origin of the simultaneous collinear and non-collinear QPM interactions.
- Subjects
NONLINEAR optics; PARAMETER estimation; DIFFRACTION gratings; LITHIUM tantalate; WAVELENGTH division multiplexing; COMPUTER simulation
- Publication
Applied Physics B: Lasers & Optics, 2013, Vol 110, Issue 4, p459
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s00340-012-5279-z