Conference paper
Enhanced Wavelength Conversion in Tio2 Microring Resonators
Technical University of Denmark1
Department of Physics, Technical University of Denmark2
Neutrons and X-rays for Materials Physics, Department of Physics, Technical University of Denmark3
Department of Photonics Engineering, Technical University of Denmark4
Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark5
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark6
National University of Defense Technology7
Titanium dioxide (TiO2) are foreseen as one of the promising material platforms for highly efficient on-chip signal processing, due to its CMOS-compatibility, broad transparency window from visible to mid-infrared wavelengths, relatively large linear and nonlinear indices as well as having a two-photon-absorption-free bandgap at wavelengths around 1550 nm [1-4].
So far, supercontinuum generation [1], Raman scattering [2], and third harmonic generation [3] have been demonstrated in TiO2 waveguides. Wavelength conversion is one of the basic functionalities within nonlinear optics and has been widely applied for optical signal processing. Recently, we have presented four-wave mixing (FWM) experiments within a straight TiO2 photonic waveguide and demonstrated a wavelength conversion efficiency (CE) of -36.2 dB with a coupled pump power of ~20 dBm [4].
The CEs can be pronouncedly enhanced by utilizing a micro-ring resonator (MRR) [5]. Here, we present FWM experiments in a TiO2 MRR having a high intrinsic Q-value of ~1.5 × 105 and achieve an idler power enhancement of 18.6 dB on resonance comparing to the off resonance case.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2019 |
| Pages: | 1-1 |
| Proceedings: | 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference |
| ISBN: | 1728104696 , 172810470X , 172810470x , 9781728104690 and 9781728104706 |
| Types: | Conference paper |
| DOI: | 10.1109/CLEOE-EQEC.2019.8873015 |
| ORCIDs: | Zheng, Yi , Guan, Xiaowei and Frandsen, Lars Hagedorn |
