Second-harmonic generation in single-mode integrated waveguides based on mode-shape modulation

作者：Rao Ashutosh; Chiles Jeff; Khan Saeed; Toroghi Seyfollah; Malinowski Marcin; Camacho Gonzalez Guillermo Fernando; Fathpour Sasan^*

来源：Applied Physics Letters, 2017, 110(11): 111109.

DOI：10.1063/1.4978696

Second-harmonic generation is demonstrated using grating-assisted quasi-phase matching, based on waveguide-width modulation or mode-shape modulation. Applicable to any thin-film integrated second-order nonlinear waveguide, the technique is demonstrated in compact lithium niobate ridge waveguides. Fabricated devices are characterized with pulsed-pumping in the near-infrared, showing second-harmonic generation at a signal wavelength of 784 nm and propagation loss of 1 dB/cm. Published by AIP Publishing.

• 出版日期2017-3-13