Broadband frequency tripling in locally ordered nonlinear photonic crystal.

Broadband frequency tripling in locally ordered nonlinear photonic crystal.

Optics express (2013-03-14)

Yan Sheng, Wieslaw Krolikowski

PMID23481980

ABSTRACT

We propose and fabricate a LiNbO₃-based nonlinear photonic crystal with locally ordered ferroelectric domains. The nonlinearity modulation provides sets of uniformly distributed reciprocal lattice vectors, ensuring broadband high frequency conversion efficiency. Frequency tripling via cascading is demonstrated in the range of 1400-1830 nm, with energy conversion efficiency up to ∼15%.

MATERIALS

Product Number

Brand

Product Description

254290

Sigma-Aldrich

Lithium niobate, 99.9% trace metals basis

262781

Sigma-Aldrich

Niobium, foil, thickness 0.25 mm, 99.8% trace metals basis

262722

Sigma-Aldrich

Niobium, powder, <45 μm, 99.8% trace metals basis

IRMM526C

Niobium, IRMM^®, certified reference material, 0.5 mm wire

IRMM525A

Niobium, IRMM^®, certified reference material, 0.02 mm foil