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High bandwidth 2 µm wavelength surface normal p-i-n photodiodes using a high indium-content InGaAs strain-relaxed absorbing layer clad by p and n doped AlInGaAs layers are realised. A parabolic grading was used to relax the lattice constant from that of the InP substrate. We compare structures with different p-doping profiles and absorber thicknesses to achieve a 3-dB bandwidth of around 10 GHz while...
Rapid separation and transfer of target cells from heterogeneous mixture to desired region have become a key issue in many biomedical applications. In this paper, we propose an approach to high speed cell transfer for sorting rare cells from a small population of samples accurately using a robotic manipulation system equipped with optical tweezers. A novel switching geometrical model is established...
Exploiting an integrated micro-ring resonator, the simultaneous generation and routing of millimetre-wave signals by optical frequency multiplication is demonstrated for in-building networks. Error Vector Magnitude <; 5% is achieved for up to 120Mb/s 64-QAM at 39.6 GHz carrier frequency.
The first multi-standard transmission consisting of 6 Gbit/s DMT baseband and 200 Mbit/s MB-OFDM UWB radio signals over 100m perfluorinated graded-index plastic optical fibre is demonstrated. Transmission performance indicates BER <; 10-5 and EVM <; -22dB respectively.
We investigate photonic packet switches that allow scaling to a large number of input and output ports. The suggested switch architectures are based on technology that has already been demonstrated. We focus on a simple Spanke node architecture. Scalable, low latency optical packet switches sub-systems capable to switch optical packets with multiple modulation formats are reviewed. The optical packet...
We present a scalable and low latency optical packet switch for DPSK and OFDM packets. Results show error-free operation of 1 ?? 64 optical packet switch for 12 ?? 10 Gb/s DPSK packets and 12 ?? 40 Gb/s OFDM packet.
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