Spatial Frequency Combs and Supercontinuum Generation in One-Dimensional Photonic Lattices

Rong Dong, Christian E. Rüter, Detlef Kip, Ofer Manela, Mordechai Segev, Chengliang Yang, Jingjun Xu
2008 Physical Review Letters  
We experimentally demonstrate the formation of spatial supercontinuum and of spatial frequency combs in nonlinear photonic lattices. This process results from multiple four-wave mixing initiated by launching two Floquet-Bloch modes into a one-dimensional lattice. The dynamics of the waves is sensitively dependent on the transverse momentum difference between the two initial modes: when this momentum difference is commensurable with the lattice momentum the waves evolve into a frequency comb,
more » ... frequency comb, whereas when it is incommensurable the waves evolve into a supercontinuum of spatial frequencies.
doi:10.1103/physrevlett.101.183903 pmid:18999833 fatcat:iycrx5yfcjc7poj6caycqchz4u