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Novel optical regenerator architecture employing electroabsorption-modulator-wavelength-converters is proposed. The wavelength converter acts also as a photodiode. The improvement of the Q-factor and the noise reset are experimentally confirmed.
An RF Transmitter Receiver MMIC (TX-RX MMIC) with 16-pin plastic package has been developed for 5.8 GHz Japanese Electronic Toll Collection system (ETC). The MMIC contains following RF blocks; local buffer amplifier, variable attenuator, ASK modulator, power amplifier, low-noise amplifier, down-converter, local switch and antenna switch. We have developed… (More)
Skin fluke Neobenedenia girellae infection is a chronic problem in marine finfish aquaculture. Current control measures rely on bath treatments, which are labor intensive and cause significant stress to fish. Although there is an urgent need to develop a strategy to prevent this infection, little is known about the distribution of the larval stage of the… (More)