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We present successful PAM-4 transmissions at 50 Gb/s over 200 m of novel wideband multimode fiber using VCSELs at 850 and 980 nm with linear and non-linear pre-distortion input signal.
Silicon slot waveguides that can operate at the wavelength of high material absorption are prepared on SOI wafer. The measured transmission loss coefficient could be as low as 1.07–2.62dB/mm at the wavelength of 1064nm.
A liquid-level indicator by using an etched chirped-fiber Bragg grating is proposed for monitoring a water level which sensing mechanism is based on the position variation of the interface between two different-index mediums.
We split each stage of back-propagation into a linear and a nonlinear part in parallel. We show by simulation and experiment that negligible performance degradation is achieved with half implementation complexity by baud-rate nonlinear compensation.
We demonstrate a high-speed green GaN light-emitting-diode for plastic optical fiber communication. By use of n-type doping in barrier layers, superior performance of modulation-speed and output-power to undoped control has been observed.
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