Geometrical representation of sum frequency generation and adiabatic frequency conversion

Haim Suchowski, Dan Oron, Ady Arie, Yaron Silberberg

Research output: Contribution to journalArticlepeer-review

125 Citations (Scopus)


We present a geometrical representation of the process of sum frequency generation in the undepleted pump approximation, in analogy with the known optical Bloch equations. We use this analogy to propose a technique for achieving both high efficiency and large bandwidth in sum frequency conversion using the adiabatic inversion scheme. The process is analogous with rapid adiabatic passage in NMR, and adiabatic constraints are derived in this context. This adiabatic frequency conversion scheme is realized experimentally using an aperiodically poled potassium titanyl phosphate (KTP) device, where we achieved high efficiency signal-to-idler conversion over a bandwidth of 140 nm.

Original languageEnglish
Article number063821
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number6
Publication statusPublished - Dec 15 2008

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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