Abstract

Second harmonic generation is an efficient way to create coherent radiation at wavelengths that are not accessible with standard laser sources. In this work we demonstrate second harmonic generation from 1550 to 775 nm in a polymer photonic integrated circuit via the hybrid integration of a periodically poled lithium niobate crystal. The bulk crystal is inserted in an on-chip free-space section between two waveguide coupled GRIN lenses. Fiber to fiber conversion efficiencies were 0.03%/W for a continuous wave laser source and 100%/W for a femtosecond laser source. Furthermore, third and fourth harmonic light at 517 and 388 nm was observed.

Integrated GaN photonic circuits on silicon (100) for second harmonic generation

Chi Xiong, Wolfram Pernice, Kevin K. Ryu, Carsten Schuck, King Y. Fong, Tomas Palacios, and Hong X. Tang
Opt. Express 19(11) 10462-10470 (2011)

Second and cascaded harmonic generation of pulsed laser in a lithium niobate on insulator ridge waveguide

Chuanyi Lu, Hao Li, Jing Qiu, Yuting Zhang, Shijie Liu, Yuanlin Zheng, and Xianfeng Chen
Opt. Express 30(2) 1381-1387 (2022)

Highly efficient phase-matched second harmonic generation using an asymmetric plasmonic slot waveguide configuration in hybrid polymer-silicon photonics

Jihua Zhang, Eric Cassan, Dingshan Gao, and Xinliang Zhang
Opt. Express 21(12) 14876-14887 (2013)

Broadband second-harmonic generation in step-chirped periodically poled lithium niobate waveguides

Xiao Wu, Li Zhang, Zhenzhong Hao, Ru Zhang, Rui Ma, Fang Bo, Guoquan Zhang, and Jingjun Xu
Opt. Lett. 47(7) 1574-1577 (2022)

Multi-watt, broadband second-harmonic-generation in MgO:PPSLT waveguides fabricated with femtosecond laser micromachining

Mark Triplett, John Khaydarov, Xiaozhen Xu, Alireza Marandi, Gennady Imeshev, John Arntsen, Ajit Ninan, Gregory Miller, and Carsten Langrock
Opt. Express 27(15) 21102-21115 (2019)