Abstract

The ${\mathrm{Ta}}_2{\mathrm{O}}_5$-based micro-ring resonator with an unloaded quality factor of 182,000 has been demonstrated to realize efficient nonlinear wavelength generation. The propagation loss of the resonator is $0.5{\mathrm{cm}}^{-1}$, and the buildup factor of the ring resonator is estimated to be $\sim 50$. With a high buildup factor of the ring structure, the four-wave-mixing (FWM) conversion efficiency of $-30\mathrm{dB}$ is achieved in the resonator with a pump power of 6 mW. Based on power-dependent FWM results, the nonlinear refractive index of ${\mathrm{Ta}}_2{\mathrm{O}}_5$ is estimated to be $1.4\times {10}^{-14}{\mathrm{cm}}^2/\mathrm{W}$ at a wavelength of $\sim 1550\mathrm{nm}$. The demonstration of an enhanced FWM process in the ${\mathrm{Ta}}_2{\mathrm{O}}_5$-based micro-ring cavity implies the possibility of realizing FWM-based optical parametric oscillation in a ${\mathrm{Ta}}_2{\mathrm{O}}_5$-based micro-ring resonator.

© 2017 Optical Society of America

Four-wave-mixing in the loss low submicrometer Ta₂O₅ channel waveguide

Chung-Lun Wu, Yi-Jen Chiu, Cong-Long Chen, Yuan-Yao Lin, Ann-Kuo Chu, and Chao-Kuei Lee
Opt. Lett. 40(19) 4528-4531 (2015)

Low-loss and high-Q Ta₂O₅ based micro-ring resonator with inverse taper structure

Chung-Lun Wu, Bo-Tsang Chen, Yuan-Yao Lin, Wei-Chen Tien, Gong-Ru Lin, Yi-Jen Chiu, Yung-Jr Hung, Ann-Kuo Chu, and Chao-Kuei Lee
Opt. Express 23(20) 26268-26275 (2015)

Tantalum pentoxide (Ta₂O₅) based athermal micro-ring resonator

Chung-Lun Wu, Yung-Jr Hung, RanRan Fan, Ding-Hsin Ou, Jen-Yang Huang, Tzu-Hsiang Yen, Yi-Jen Chiu, Min-Hsiung Shih, Yuan-Yao Lin, Ann-Kuo Chu, and Chao-Kuei Lee
OSA Continuum 2(4) 1198-1206 (2019)

High-quality factor Ta₂O₅-on-insulator resonators with ultimate thermal stability

J. Rasmus Bankwitz, Martin A. Wolff, Adrian S. Abazi, Pierre-Maurice Piel, Lin Jin, Wolfram H. P. Pernice, Ursula Wurstbauer, and Carsten Schuck
Opt. Lett. 48(21) 5783-5786 (2023)

Wavelength conversion in GaAs micro-ring resonators

P. P. Absil, J. V. Hryniewicz, B. E. Little, P. S. Cho, R. A. Wilson, L. G. Joneckis, and P.-T. Ho
Opt. Lett. 25(8) 554-556 (2000)