Simultaneous broadband Raman cascading and parametric conversion in potassium titanyl phosphate

Alexis Labruyère (1) , Badr Mohamed Ibrahim Shalaby (1) , Katarzyna Krupa (1) , Vincent Couderc (1) , Alessandro Tonello (1) , Fabio Baronio (2)

1 XLIM-PHOTONIQUE - PHOTONIQUE
2 Dipartimento di Ingegneria de l'Informazione

We generated a broad spectrum of light between 1064 and 1300 nm in the infrared by cascading stimulated Raman scattering in a potassium titanyl phosphate crystal while broadband conversion of the infrared Raman cascade was simultaneously achieved in the visible through second-harmonic generation (SHG) and sum-frequency mixing. We observed that odd- and even-order cascaded Stokes components were spatially addressed at different angles of propagation in the crystal. The efficiency of SHG and sum-frequency mixing is discussed as a function of the pump polarization. We also report on significant spatial distortions of the output Stokes beams. © 2013 Optical Society of America

Mots clés: Scattering; stimulated Raman; Harmonic generation and mixing; Nonlinear optical materials

Domaines: Optique [physics.optics]

Alexis Labruyère, Badr Mohamed Ibrahim Shalaby, Katarzyna Krupa, Vincent Couderc, Alessandro Tonello, et al.. Simultaneous broadband Raman cascading and parametric conversion in potassium titanyl phosphate. Optics Letters, 2013, 38 (19), pp.3758. ⟨hal-00913583⟩