We demonstrate 4-PAM 48.67-Gb/s transmission, using a directly modulated VCSEL, over 50, 100, and 200 m of multimode fiber with partial dispersion compensation properties. The results of our experiments indicate that 200 m reach is achievable with forward error correcting codes with small overhead.
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.
A hemispherical lens capillary-bonded to an InGaN flip-chip light-emitting diode (LED) is demonstrated to efficiently couple light to a plastic optical fiber. The BK-7 hemispherical lens is bonded onto a circularly shaped LED chip with inclined sidewalls cut by laser-micromachining, so that lateral emissions are effectively suppressed. Capillary bonding minimizes air-gap between chip and lens enabling...
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.
Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program:
SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.