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  • 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
IRMM526A
Niobium, IRMM®, certified reference material, 0.02 mm foil
IRMM526C
Niobium, IRMM®, certified reference material, 0.5 mm wire
IRMM525A
Niobium, IRMM®, certified reference material, 0.02 mm foil
262722
Sigma-Aldrich
Niobium, powder, <45 μm, 99.8% trace metals basis
262781
Sigma-Aldrich
Niobium, foil, thickness 0.25 mm, 99.8% trace metals basis
IRMM525C
Niobium, IRMM®, certified reference material, 0.5 mm wire