Paper 13139-3
Paper 13139-3
Multi-mode nonlinear optics and its application in supercontinuum source and all-optical signal processing (Invited Paper)
18 August 2024 • 9:20 AM - 9:45 AM PDT | Conv. Ctr. Room 11B
Abstract
We show two of our work on multi-mode nonlinear optical process. In a Ta2O5 waveguide of 100 nm in thickness, 8 μm in width and 4.5 mm in length, all-optical signal switching and power limiting operation were demonstrated by nonlinear mulit-mode interference while the modes were properly excited by a near infrared pulse at the wavelength of 1064 nm, peak power of 100 W and the pulse duration of 1 ps. In supercontinuum process, a waveguide of 760 nm in thickness and 1.1 μm in width was designed where different guided modes were anomalously dispersive at different wavelengths. Supercotinuum spectrum spanning over an octave with high degree of spectral flatness was excited by a 100-fs laser pulse at the wavelength of 1030 nm. Spectral synthesis with a diffraction gratings mapped the spectral components attributed to specific waveguide modes. It inferred the possibility to engineer supercontinuum generation through waveguide-mode arrangement.
Presenter
YuanYao Lin
National Sun Yat-sen Univ. (Taiwan), Crystal Research Ctr. (Taiwan)
Dr. YuanYao Lin received his bachelor degree and master degree of engineering from the EE Department at National Tsing-Hua University (NTHU) in Taiwan in 2001 and in 2003, respectively. In 2008, he completed his study for doctorate degree from the Institute of Photonics Technologies at NTHU. During 2009 to 2010, he was funded by the National Science Council as a Postdoctoral Research Scholar. In 2011 he worked as Assistant Research Scholar of National Science Council and Assistant researcher of EE department at NTHU to host a 3-year research project. He was recognized by International Union of Radio Science (URSI) and received Young Scientist Award in 2013. Since 2014, he joined the Department of Photonics at National Sun Yat-Sen University (NSYSU) as an Assistant Professor and he became an Associate Professor since 2019. His current research interests cover the spatio-temporal dynamics of structured lights lasers, nonlinear waveguide devices and optical inspection system design.