Dispersion-induced generation of higher order transversal modes in singly-resonant optical parametric oscillators

Details Dispersion-induced generation of higher order transversal modes in singly-resonant optical parametric oscillators Dispersion-induced generation of higher order transversal modes in singly-resonant optical parametric oscillators

1998-08-18

arxiv.org/abs/physics/9808023v1

Optics Communications 145 (1998) 5-8

Physics

Optics

13 pages, 4 figures, PACS Numbers: 42.65.Ky, 42.10.Qj, Key Words: parametric oscillation, phase-matching, diffraction

Scientific paper

10.1016/S0030-4018(97)00414-8

We study the effects of higher order transversal modes in a model of a singly-resonant OPO, using both numerical solutions and mode expansions including up to two radial modes. The numerical and two-mode solutions predict lower threshold and higher conversion than the single-mode solution at negative dispersion. Relative power in the zero order radial mode ranges from about 88% at positive and small negative dispersion to 48% at larger negative dispersion, with most of the higher mode content in the first mode, and less than 2% in higher modes.

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