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Fast and widely tunable III-V/SOI DFB and DBR lasersResearch Area:
Heterogeneous integration technology for silicon photonics ,
Integrated lasers and LEDs ,
Silicon photonics for telecom, datacom and interconnect Main Researcher: Sören Dhoore
The aim of this work is to realize widely tunable DFB and DBR lasers based on the heterogeneous integration of InP-compound epitaxial layer stacks on the silicon-on-insulator (SOI) platform. Tunable laser diodes can be made using electronic or thermal tuning. Electronic tuning exploits the free-carrier plasma dispersion effect, which allows very fast wavelength switching but results in linewidth broadening. Thermal tuning gives lower tuning speeds but allows to maintain a narrow laser linewidth over the entire tuning range. Our work covers both tuning approaches. Wide wavelength tuning is achieved through the Vernier effect. Coupling from the III-V to the underlying SOI waveguide is realised using adiabatic tapered coupling structures.
(Left) Schematic view of a III-V/SOI SG-DFB laser; (Right) Superimposed lasing spectra, as demonstrated in Dhoore et al., IEEE Photon. Technol. Lett., 2016.
Other people involved: Patents PublicationsInternational Journals
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S. Dhoore, G. Roelkens, G. Morthier,
Fast wavelength-tunable lasers on silicon, IEEE Journal on Selected Topics in Quantum Electronics (invited), 25(6), p.1500908 doi:10.1109/JSTQE.2019.2912034 (2019)
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S. Dhoore, A. Köninger, R. Meyer, G. Roelkens, G. Morthier,
Electronically tunable distributed feedback (DFB) laser on silicon, Laser & Photonics Reviews, 13(3), p.1800287 doi:10.1002/lpor.201800287 (2019).
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S. Dhoore, A. Rahim, G. Roelkens, G. Morthier,
12.5 Gbit/s discretely tunable InP-on-silicon filtered feedback laser with sub-nanosecond wavelength switching times, Optics Express, 26(7), p.8059-8068 doi:10.1364/OE.26.008059 (2018)
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J. Zhang, B. Haq, J. O'Callaghan, A. Gocalinska, E. Pelucchi, A.J. Trindade, B. Corbett, G. Morthier, G. Roelkens,
Transfer-printing-based integration of a III-V-on-silicon distributed feedback laser, Optics Express, 26(7), United States, p.8821-8830 doi:10.1364/oe.26.008821 (2018)
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J. Zhang, Y. Li, S. Dhoore, G. Morthier, G. Roelkens,
Unidirectional, widely-tunable and narrow-linewidth heterogeneously integrated III-V-on-silicon laser, Optics Express, 25(6), United States, p.7092-7100 doi:10.1364/OE.25.007092 (2017)
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S. Dhoore, G. Roelkens, G. Morthier,
III-V-on-silicon three-section DBR laser with over 12 nm continuous tuning range, Optics Letters, 42(6), p.1121-1124 doi:10.1364/OL.42.001121 (2017)
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S. Dhoore, L. Li, A. Abbasi, G. Roelkens, G. Morthier,
Demonstration of a discretely tunable III-V-on-silicon sampled grating DFB laser, IEEE Photonics Technology Letters, 28(21), p.2343-2346 doi:10.1109/LPT.2016.2593983 (2016)
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International Conferences
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G. Morthier, M. Shahin, J. Rahimi Vaskasi, P. Ossieur, X. Yin, J. Bauwelinck, G. Roelkens,
Towards high-speed InP-on-silicon DFB lasers with low power consumption’, International conference on optics and electro-optics, India, (2019).
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S. Dhoore, G. Roelkens, G. Morthier,
InP-on-silicon electronically tunable lasers, International Conference on Transparent Optical Networks (ICTON) 2018 (invited), Romania, p.paper Tu.B5.3 (4 pages) doi:10.1109/icton.2018.8473935 (2018)
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S. Dhoore, A. Rahim, G. Roelkens, G. Morthier,
III-V-on-Silicon Filtered Feedback Discretely Tunable Laser with Nanosecond Switching Times, Conference on Lasers and Electro-Optics (CLEO) 2018, United States, p.paper SW3Q.4 doi:10.1364/cleo_si.2018.sw3q.4 (2018)
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S. Dhoore, G. Roelkens, G. Morthier,
Towards fast tunable InP-on-SOI laser diodes, European Semiconductor Laser Workshop 2017, Denmark, p.1-2 (2017).
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S. Dhoore, G. Roelkens, G. Morthier,
Heterogeneously Integrated III-V/SOI DBR Laser with Over 7 nm Continuous Wavelength Tuning Range, European Conference on Integrated Optics (ECIO, Netherlands, p.paper M5.2 (2 pages) (2017)
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S. Dhoore, G. Roelkens, G. Morthier,
Discretely tunable III-V/SOI SG-DFB laser, Proceedings Symposium IEEE Photonics Society Benelux, Belgium, p.39-42 (2016)
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S. Dhoore, L. Li, A. Abbasi, G. Roelkens, G. Morthier,
Demonstration of a discretely tunable III-V/SOI sampled grating distributed feedback laser, IEEE Photonics Conference, 29th Annual Conference of the IEEE Photonics Society, United States, doi:10.1109/ipcon.2016.7831221 (2016)
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S. Dhoore, G. Roelkens, G. Morthier,
Design of an electronically tunable laser diode integrated on the SOI platform, Proceedings of the 20th Annual Symposium of the IEEE Photonics Benelux Chapter, Belgium, (2015)
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