We demonstrate six-channel 160-Gb/s wavelength-division-multiplexed transmission over 20 100-km spans of nonzero-dispersion fiber, with a spectral efficiency of 0.53 b/s/Hz. We achieve this result using optical-time-division multiplexing with polarization bit interleaving and return-to-zero differential-phase-shift-keying modulation format. We also operate at 170.6 Gb/s per channel to emulate t...

— We measured the fireball Lorentz factor of GRB 060418 by the direct observation of the onset of the NIR afterglow carried with the REM telescope. We found Γ0 ∼ 400. PACS 98.70.Rz – gamma-ray bursts..

This paper describes a computationally efficient method for synthesizing feedback controllers for plants modeled by Petri nets which may contain uncontrollable transitions. The controller, a Petri net itself, enforces a set of linear constraints on the plant. The original set of plant behavioral constraints is transformed to yield a controller which enforces the original constraints without inf...

We propose and experimentally investigate the use of SPM broadened spectrum filtering technique to suppress homodyne crosstalk of high-speed optical signals. Crosstalk tolerance is found to be enhanced by about 4-dB for 10-Gbps RZ data.