We measured the spectrum and energy of infrared triple photons generated in a phase-matched KTiOPO4 crystal pumped by picosecond beams at 532 and 1662 nm. The experimental data are in good agreement with our model, taking into account the spectral linewidths of the incident beams as well as a parasitic Kerr effect.
© 2012 Optical Society of America
Original Manuscript: March 30, 2012
Manuscript Accepted: April 30, 2012
Published: June 8, 2012
Audrey Dot, Adrien Borne, Benoît Boulanger, Patricia Segonds, Corinne Félix, Kamel Bencheikh, and Juan Ariel Levenson, "Energetic and spectral properties of triple photon downconversion in a phase-matched KTiOPO4 crystal," Opt. Lett. 37, 2334-2336 (2012)