Hardware Integration options for Space Division Multiplexing
COBRA Research Institute, Eindhoven University of Technology, The Netherlands
Space Division Multiplexing has been shown to be a key technology for scaling the capacity within a single fiber. Critical to the performance of these systems is the multiplexing aspect. Therefore, it is critical to investigate integrated multiplexing solutions and their performance in terms of mode dependent and coupler insertion losses. This paper presents a number of integrated solutions.
Silicon- and plasmonics-based nanophotonics for computer interconnects and sensing
Lech WOSINSKI1,3*, Xu SUN1,3, Lars THYLEN2,3,4
1 School of Information and Communication Technology, KTH Royal Institute of Technology, 164 40, Kista, Sweden
2 Dept. of Theoretical Chemistry and Biology, KTH Royal Institute of Technology, 106 91 Stockholm, Sweden
3 JORCEP, Joint Research Center of Photonics of the Royal Institute of Technology (Sweden) and Zhejiang University (China).
4 Hewlett-Packard Enterprise Laboratories, Palo Alto, CA 94304 USA
The talk gives an overview of our recent activities and achievements in the area of silicon nanophotonics technology and implementation of plasmonic structures for guiding and controlling light in applications to computer interconnects and sensing. The move from copper wiring to optical interfaces is approaching inter- and intra-chip communication as well as lab-on-a-chip solutions for biosensing.
Optical properties of plasmonic networks
Dawid PIATKOWSKI1*, Victor SEBASTIAN2, Marcin NYK3, Sebastian MACKOWSKI2
1Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziądzka 5, 87-100 Toruń, Poland
2Department of Chemical Engineering, Aragon Institute of Nanoscience, University of Zaragoza, Campus Rio Ebro-Edificio I + D, C/Poeta Mariano Esquillor S/N, 50018-Zaragoza, Spain
3Institute of Physical and Theoretical Chemistry, Wrocław University of Technology, ul. Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
In this paper we discuss the optical properties of plasmonic networks based on noble materials, in the context of optoelectronic applications. The studied networks consist of bent silver nanowires, obtained using wet-chemistry as well as of silver nanowires fabricated directly on a substrate using photo-chemical reaction. While the first type of structures are mono-crystalline, which ensures long-range energy propagation, the latter can be prepared in any arbitrary shape.
Quantum State Tomography in Static Optical Circuits
James G. TITCHENER, Alexander S. SOLNTSEV, Andrey A. SUKHORUKOV*
Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University, Canberra, ACT 2601, Australia
Full characterization of quantum states is of increasing importance as ever more complex quantum systems are realized. Quantum state tomography of these systems is a difficult task because it requires a large number of different measurements to be taken. This is because measurement results in quantum mechanics are probabilistic, so many measurements must be taken of near identical copies of the system determine quantum mechanical expectation values. Furthermore, many different expectation values must be measured to fully characterize the density matrix because it occupies a high dimensional space that cannot be fully determined by projection onto a single measurement basis. Thus typical approaches to quantum state tomography require reconfigurable optical setups to measure expectation values in different bases .
Fast and Energy Efficient Micro-Ring-Resonator-Based 4×4 InP Switch Matrix
Ripalta STABILE*, Prometheus DASMAHAPATRA, Kevin A. WILLIAMS
Eindhoven University of Technology, COBRA research institute, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
Wavelength-selective micro-ring resonators combined with electro-optic tuneable elements can provide fast switching functionalities. Most of the research done so far on active micro-ring resonators has however focused on the realization of first-order micro-ring resonator based devices such as filters and lasers [1-2] or on monolithically integrated switches on Silicon on Insulator (SOI) platform . However, the inherent trade-off between the achievable bandwidth and the signal extinction in first-order micro-rings  have limited their use in switching. Moreover, nanoscale feature size variations lead to a shift of the peak wavelength of the same order  which particularly complicates applications in large scale circuits.
Beam Steering Device with Sub Micrometre Precision
Simone CARDARELLI*, Nicola CALABRETTA, Domenico D’AGOSTINO, Ripalta STABILE and Kevin WILLIAMS
COBRA research institute, Eindhoven University of Technology
Abstract: A lateral beam steering device based on electro-optic effects in an InP/InGaAsP expanded mode waveguide has been designed, simulated and tested. Experimental results confirm that submicron precision beam movement is achieved at the output facet of the device. A total tuning range of 0.8 µm has been measured.