Latest advances in optical frequency combs based on quadratic non‐linearity

IET Optoelectronics

Costanzo Caso Pablo Alejandro¹  Barturen Mariana²  Maglio Benjamin³ 

[1] Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) Argentina;Instituto de Tecnología Universidad Argentina de la Empresa Lima 775 Buenos Aires Argentina;School of Physics and Astronomy Cardiff University Cardiff UK;

关键词: optical frequency combs;    second-order nonlinear susceptibility;    nonlinear processes;    second harmonic generation;    sum frequency generation;    difference frequency generation;   

DOI  :  10.1049/iet-opt.2019.0078

来源: DOAJ

【 摘 要 】

Second‐order non‐linear susceptibility (χ2) is the cause of many non‐linear processes in optics including second harmonic generation, sum frequency generation and difference frequency generation. Optical frequency combs based on χ2, i.e. quadratic frequency combs, hold the promise of reducing the devices power consumption and footprint since χ2 materials present a stronger non‐linearity than χ3 materials, which suggests that higher efficiencies can be achieved. In this work, we will revisit the latest quadratic combs experimental advances, concerning power threshold, span and wavelength conversion efficiency.

【 授权许可】

Unknown