Light sources and components 1

[LDC3-05] Structured NIR and Yellow-Orange Light Generation from χ⁽²⁾
Nonlinear Photonic Crystals

*Jie Hua Lai¹, Kai Hsun Chang^1,3, Bai Wei Wu¹, To Fan Pan¹, Ming Shun Tsai¹, Hung Hsiang Chiu², Chia Chun Fan¹, Safia Mohand Ousaid ³, Azzedine BOUDRIOUA³, Hiroyuki YOKOYAMA⁴, Eiji Higurashi⁴, Hidefumi AKIYAMA⁵, Chih Ming Lai⁶, Lung Han Peng^1,2 (1. Graduate Institute of Photonics and Optoelectronics, National Taiwan University, 2. Dept. Elec. Eng. National Taiwan University, Taipei 106, Taiwan, R.O.C., 3. Laboratoire de Physique de Lasers CNRS UMR 7538, Université Paris 13, Sorbonne Paris Cité,Villetaneuse, France, 4. Graduate school of engineering, Tohoku University, Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8579, Japan, 5. The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan , 6. Electronic and optoelectronic system research laboratories, Industrial Technology Research Institute, Hsinchu, 310401, Taiwan)

We reported structured beams due to simultaneously multi-optical parametric oscillations (OPO). For the dual-OPO crystal, the paired signal waves at (965, 980) nm were shown to reside on the opposite sides of the cavity mode whose pattern changed elegant Hermite-Gaussian as pump beam scanned over the χ⁽²⁾ nonlinear photonic crystal. Such change in the nonlinear gain profile also introduced visible structured beam in yellow-orange due to cascaded SHG or SFG.