Fabricación de niobato de litio periódicamente polarizado para óptica no lineal

Abstract

We describe how to produce periodically-poled lithium niobate (PPLN), which can be used to generate electromagnetic radiation of different frequencies through quasi-phase-matching. First we describe the basic principles of quasi-phase-matching and of ferroelectric crystals (which are used to obtain quasi-phase-matching), and then we give a detailed description of the fabrication process of PPLN. Using this technique we obtained PPLN samples over 5 cm long of high enough quality to obtain optical parametric generation through quasi-phase-matching.