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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Semenova, Elizaveta
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024InAs(P)/InP QDs as sources of single indistinguishable photons at 1.55 µm
- 2024Experimental realization of deep sub-wavelength confinement of light in a topology-optimized InP nanocavitycitations
- 2024Heterogeneous integration of single InAs/InP quantum dots with the SOI chip using direct bondingcitations
- 2020Optical and electronic properties of low-density InAs/InP quantum-dot-like structures designed for single-photon emitters at telecom wavelengthscitations
- 2019Systematically Varying the Active Material Volume in a Photonic Crystal Nanolaser
- 2019Systematically Varying the Active Material Volume in a Photonic Crystal Nanolaser
- 2018Ultra-Efficient and Broadband Nonlinear AlGaAs-on-Insulator Chip for Low-Power Optical Signal Processingcitations
- 2017Mid-IR optical properties of silicon doped InPcitations
- 2016Highly doped InP as a low loss plasmonic material for mid-IR regioncitations
- 2016An Ultra-Efficient Nonlinear Platform: AlGaAs-On-Insulator
- 2013Ultrahigh-speed hybrid laser for silicon photonic integrated chips
- 2012Slow-light enhancement of spontaneous emission in active photonic crystal waveguides
- 2012Slow-light enhancement of spontaneous emission in active photonic crystal waveguides
- 2011Towards quantitative three-dimensional characterisation of InAs quantum dots
- 2011Active III-V Semiconductor Photonic Crystal Waveguidescitations
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document
Ultrahigh-speed hybrid laser for silicon photonic integrated chips
Abstract
Increasing power consumption for electrical interconnects between and inside chips is posing a real challenge to continue the performance scaling of processors/computers as predicted by D. Moore. In recent processors, energy consumption for electrical interconnects is half of power supplied and will be 80% in near future. This challenge strongly has motivated replacing electrical interconnects with optical ones even in chip level communications [1]. This chip-level optical interconnects need quite different performance of optoelectronic devices than required for conventional optical communications. For a light source, the energy consumption per sending a bit is required to be <10 fJ/bit for on-chip interconnects and <100 fJ/bit for off-chip interconnects; this is two or three orders of magnitude smaller than the conventional devices. To meet the energy/bit requirement, many innovative laser diode and light-emitting diode (LED) structures have been proposed so far. Our hybrid laser is one of<br/>these efforts [2].<br/><br/>The hybrid laser consists of a dielectric reflector, a III-V semiconductor active material, and a high-index-contrast grating (HCG) reflector formed in the silicon layer of a silicon-oninsulator (SOI) wafer. ‘Hybrid’ indicates that a III-V active material is wafer-bonded to a silicon SOI wafer. In the hybrid laser, light is vertically amplified between the dielectric and the HCG reflectors, while the light output is laterally emitted to a normal Si ridge waveguide that is connected to the HCG reflector. The HCG works as a vertical mirror as well as a vertical-to-lateral coupler. Very small field penetration into the HCG allows for 3-4 times smaller modal volume than typical vertical-cavity surface-emitting lasers (VCSELs). This leads to high direct modulation speed. Details on device operating mechanism will be<br/>explained in the lecture.<br/><br/>Recently, a nano light-emitting diode (LED) with energy/bit < 1fJ/bit [3] and a nano laser diode with a buried heterostructure (BH) active material [4] have been recently reported in the literature. Additionally, device physics, engineering issue, and error-free light detection issue in quantum limit will be discussed in relation to these two structures.