Development of a Pulsed RGB Light Source Using Multiple Cascaded Nonlinear Processes in PPLN

Abstract

We present a source of red, green and blue light (RGB source), produced by pumping with a pulsed Nd:YAG laser a periodically poled lithium niobate crystal that has two poling periodicities. The first section produces through optical parametric generation a ∼ 1.43 μ m signal and the last section simultaneously produces the second (near-IR) and third harmonic (blue) of the signal obtained from the first section. The green and red beams are the result of non-phase-matched second harmonic generation of the pump and sum-frequency generation between the pump and signal.

Keywords:

• Lithium niobate
• nonlinear optical devices
• parametric processes
• quasi-phase-matching

Acknowledgments

We thank F. Alonso for experimental assistance. This work was partially supported by CONACyT through the project 40652.