Ahead of Print article · Journal article
Characterization and Optimization of Four-Wave-Mixing Wavelength Conversion System
Department of Photonics Engineering, Technical University of Denmark1
Ultra-fast Optical Communication, Department of Photonics Engineering, Technical University of Denmark2
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark3
Machine Learning in Photonic Systems, Department of Photonics Engineering, Technical University of Denmark4
Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark5
Coding and Visual Communication, Department of Photonics Engineering, Technical University of Denmark6
In this work, we present a comprehensive experimental and numerical investigation of the impact of system parameters on wavelength converters based on four-wave-mixing, with focus on practical system implementations in addition to the interaction within the nonlinear medium. The input signal power optimization is emphasized according to the trade-off between the linear and the nonlinear impairments, and the origin of the limitations at the optimum is studied.
The impact of the input signal quality on the converted idler is discussed, and depending on the dominant noise contribution a varying conversion penalty is demonstrated. The penalty is also shown to scale with increasing number of WDM channels due to additional nonlinear cross-talk between them. Finally, by means of numerical simulations we extend the experimental characterization to high pump powers, showing the impact of parametric noise amplification, and different pump laser linewidths, which lead to increased phase-noise transfer.
The experimental characterization employs an integrated AlGaAs-on-insulator waveguide, and the numerical simulations accompany the results to make the analysis general for $\chi^{(3)}$ materials that satisfy the assumptions of the split-step Fourier method.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2019 |
| Pages: | 5628-5636 |
| ISSN: | 15582213 and 07338724 |
| Types: | Ahead of Print article and Journal article |
| DOI: | 10.1109/JLT.2019.2933226 |
| ORCIDs: | 0000-0002-7893-5573 , Da Ros, Francesco , Porto da Silva, Edson , Pu, Minhao , Yankov, Metodi Plamenov , Semenova, Elizaveta , Yvind, Kresten , Forchhammer, Søren , Clausen, Anders Thomas , Oxenløwe, Leif Katsuo and Galili, Michael |
Coherent communications Four-wave mixing Integrated waveguides Quadrature amplitude modulation
AlGaAs Erbium-doped fiber amplifiers III-V semiconductors Optical noise Optical waveguides Optical wavelength conversion Pins Signal to noise ratio Wavelength division multiplexing aluminium compounds conversion penalty converted idler dominant noise contribution experimental characterization four-wave-mixing wavelength conversion system four-wave-mixing, integrated waveguides gallium arsenide input signal power optimization integrated AlGaAs-on-insulator waveguide integrated optics multiwave mixing nonlinear cross-talk nonlinear impairments nonlinear medium numerical simulations optical pumping optical waveguides optical wavelength conversion optimisation parametric noise amplification phase-noise transfer pump laser linewidths pump powers quadrature amplitude modulation split-step Fourier method system parameters wavelength converters
