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We investigate the possibility of packing 100Gb/s PDM-QPSK channels with 28% overhead into a 33GHz-grid. We compare different intersymbol mitigation techniques and show moderate penalties compared to a standard 50GHz-grid.
Electrophoretic deposition has been applied for depositing phosphors for application to solid state lighting. A “remote phosphor” configuration was employed in a UV-LED-based white light source for better light extraction efficiency.
SiO2 coatings on the blue emitting halophosphate phosphors were studied. Luminescence output and moisture stability of micron-sized blue emitting halophosphate phosphors are 15–20% improved by SiO2 coatings.
We use pulse shaper to investigate frequency combs generation in microresonators in the temporal domain. We observe that different groups of comb lines have different mutual coherence and suggest a model for comb formation.
Recently, the Fano resonance, known from atomic physics, has been employed for a wide variety of nanophotonic structures, such as quantum dots, photonic crystals (PCs), plasmonics, and metamaterials. [1, 2] With modal dispersion engineering, Fano filters and reflectors can all be realized in single-layer dielectric PC structures. [3–5] We report here ultra-compact surface-normal high-Q Fano resonance...
Femtosecond mid-IR pulses were coupled into a quantum cascade laser. The spectral broadening and far-field profile of the transmitted pulses showed an intensity dependence. n2 was experimentally estimated to be on the order of ∼10−9cm2/W.
The characteristics of InGaN quantum wells light-emitting diodes with thin large bandgap AlGaInN barriers were analyzed with taking into account the carrier transport effect, which resulted in efficiency-droop suppression.
We study theoretically the transmissivity of As2S3 chalcogenide optical fibers with motheye anti-reflective nanostructures. We show that it is possible to design structures giving greater than 99% transmission from 2–5 µm.
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