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We demonstrate 51.1-Tb/s multi-core fiber transmission using cladding pumped 7-core EDFAs and confirmed a reachable distance of 2,520 km with 73 × 100-Gbit/s Nyquist-pulse-shaped DP-QPSK signals per core.
We developed a timing counter with a monolithic array of multi-pixel photon counters (MPPCs) coupled to a plastic scintillator. A signal of the MPPC was processed and its fast components were amplified by a developed readout circuit to improve the timing. The performances of the counter were evaluated by electrons with energies of 855 MeV. A set of the MPPC based...
PoGOLite is a balloon-borne X-ray polarimeter, designed to measure the polarization of 25-80 keV X-rays. It is scheduled for a pathfinder flight in August 2010. This paper outlines the scientific motivation and the status of preparations of the payload.
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