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
Original Manuscript: May 20, 2013
Revised Manuscript: July 23, 2013
Manuscript Accepted: August 26, 2013
Published: September 19, 2013
Alexis Labruyère, Badr M. Shalaby, Katarzyna Krupa, Vincent Couderc, Alessandro Tonello, and Fabio Baronio, "Simultaneous broadband Raman cascading and parametric conversion in potassium titanyl phosphate," Opt. Lett. 38, 3758-3761 (2013)