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Distance Spectra for Trellis Coded Modulation Schemes on Channels with Intersymbol Interference
Trellis Coded Modulation Distance Spectrum Intersymbol Interference
2009/7/27
The effect of intersymbol interference on distance spectra for trellis coded 8-PSK, 16-QAM and 32-AMPM modulation schemes is evaluated using the methods proposed by Schlegel. Distance spectra of 16-st...
Red and Green Distributed-Feedback LiF Color Center Lasers Fabricated by Interference of Femtosecond Laser Pulses
Color centers Distributed-feedback laser Femtosecond laser
2009/6/1
Sub-micron periodic gratings inside bulk lithium fluoride (LiF) are holographically fabricated by interference with the second harmonic (390 nm) of a mode-locked Ti:sapphire oscillator-amplifier laser...
Analysis on SOI(Silicon-on-Insulator)-based MMICs(Multimode Interference Couplers) with different thickness of upper Silicon layer
SOI MMICs thickness Silicon layer MMI
2010/7/16
It is compared with each other that MMIs made of SOI wafers with different thickness of upper Si layer have different properties. MMI coupler made of SOI wafers with thinner Si layer has better self-i...