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Nonlinear functionalities in ring resonatorsMain Researcher: Gino Priem
Using SOI ring resonators, different nonlinear contributions to the refractive index and absorption are investigated. It was found that thermal effects are dominant, but also a large contribution due to free carriers is present. Using a 4 um radius ring, thermal bistability was obtained with input powers below 0.3mW.
For the first time, we also demonstrated unstable behaviour, which forms an important limitation for thermal all-optical switching, but also has potential for pulse generation.
In addition, free-carrier based all-optical switching was
demonstrated with a pump power of only 0.66 mW. At larger pump
powers, we again observed unstable behaviour, which limits the obtainable modulation depth. Despite these considerations, applications along the lines of packet-based all-optical
routing are possible. Other people involved: PublicationsInternational Journals
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P. Dumon, G.R.A. Priem, L.R. Nunes, W. Bogaerts, D. Van Thourhout, P. Bienstman, T.K. Liang, M. Tsuchiya, P. Jaenen, S. Beckx, J. Wouters, R. Baets,
Linear and nonlinear nanophotonic devices based on silicon-on-insulator wire waveguides, Japanese Journal of Applied Physics, 45(8B), p.6589-6602 doi:10.1143/jjap.45.6589 (2006)
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G.R.A. Priem, P. Dumon, W. Bogaerts, D. Van Thourhout, G. Morthier, R. Baets,
Optical bistability and pulsating behaviour in Silicon-On-Insulator ring resonator structures, Optics Express, 13(23), p.9623 - 9628 doi:10.1364/opex.13.009623 (2005)
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International Conferences
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I. Luntadila Lufungula, D. Van Thourhout,
All-Optical XOR Gate Based on a Saturable Cavity, European Conference on Integrated Optics, p.471-476 doi:10.1007/978-3-031-63378-2_77 (2024).
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R. Baets, W. Bogaerts, D. Taillaert, P. Dumon, D. Van Thourhout,
SOI Photonic Wire Based Components with Compact and Efficient Fiber Couplers , Optical Fiber Communications (invited), United States, p.OWG3 doi:10.1109/ofc.2007.4348871 (2007)
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G.R.A. Priem, P. Dumon, W. Bogaerts, D. Van Thourhout, G. Morthier, R. Baets,
nonlinear effects in ultrasmall silicon-on-insulator ring resonators, SPIE Photonics Europe, France, p.6183-47 doi:10.1117/12.668249 (2006)
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