Twin-beam optical parametric generation in χ(2) nonlinear photonic crystals

2011/04/18 by Katia Gallo, Martin Levenius, Fredrik Laurell +2 · 2 citations
Engineering · Mathematics · Physics and Astronomy · #Advanced Fiber Laser Technologies #Beam (structure) #Laser #Lattice (music) #Materials science #Mathematics #Nonlinear optics #Nonlinear system #Optical amplifier #Optical parametric amplifier #Optics #Optoelectronics #Parametric statistics #Photonic and Optical Devices #Photonic crystal #Photonics #Photorefractive and Nonlinear Optics #Physics #Quantum mechanics #Range (aeronautics) #Second-harmonic generation #Signal beam

paper · doi:10.1063/1.3583444

openalex publication_date 2011/04/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26

Abstract

We demonstrate optical parametric generation in two-dimensional purely nonlinear lattices. Experiments performed in hexagonally poled LiTaO3 crystals pumped around 800 nm indicate a coherent contribution to the parametric gain arising from multiple resonances of the lattice, resulting in dual-beam signal outputs in the 1–1.7 μm range.

Cited by

• Angular degrees of freedom in twin-beam parametric down-conversion
• Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes. [europepmc]

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