Abstract
We report on the first experimental demonstration of widely tunable parametric sideband generation in a Kerr microresonator. Specifically, by pumping a silica microsphere in the normal dispersion regime, we achieve the generation of phase-matched four-wave mixing sidebands at large frequency detunings from the pump. Thanks to the role of higher-order dispersion in enabling phase matching, small variations of the pump wavelength translate into very large and controllable changes in the wavelengths of the generated sidebands: we experimentally demonstrate over 720 nm of tunability using a low-power continuous-wave pump laser in the C-band. We also derive simple theoretical predictions for the phase-matched sideband frequencies and discuss the predictions in light of the discrete cavity resonance frequencies. Our experimentally measured sideband wavelengths are in very good agreement with theoretical predictions obtained from our simple phase-matching analysis.
© 2017 Optical Society of America
Full Article | PDF ArticleMore Like This
Yulong Tang, Zheng Gong, Xianwen Liu, and Hong X. Tang
Opt. Lett. 45(5) 1124-1127 (2020)
Shun Fujii, Shuya Tanaka, Mika Fuchida, Hikaru Amano, Yuka Hayama, Ryo Suzuki, Yasuhiro Kakinuma, and Takasumi Tanabe
Opt. Lett. 44(12) 3146-3149 (2019)
Noel Lito B. Sayson, Hoan Pham, Karen E. Webb, Vincent Ng, Luke S. Trainor, Harald G. L. Schwefel, Stéphane Coen, Miro Erkintalo, and Stuart G. Murdoch
Opt. Lett. 43(17) 4180-4183 (2018)