We experimentally demonstrate, for the first time, polarization-insensitive wavelength conversion of a 10 Gb/s NRZ-OOK data signal based on four-wave mixing in a silicon nanowire with bit-error rate measurements. OCIS codes: (190.4380) Nonlinear optics, four-wave mixing; (190.4390) Nonlinear optics, integrated optics; (230.7370) Waveguide; (130.7405) Wavelength conversion devices.

was tot voor kort alleen mogelijk met behulp van behoorlijk wat menselijke slimheid en inventiviteit. Echter, computers kunnen dergelijke uitdrukkingen nu ook vinden; het probleem wanneer een hypergeometrische som is uit te drukken in gesloten vorm is geheel opgelost. Andries Brouwer beschrijft het proces van de zogenaamde automatische sommering. Het is gebaseerd op theorieën van Zeilberger en ...

We analyze the bit error rate (BER) performance of indoor infrared wireless systems using on-o keying (OOK) code division multiple access (CDMA) on di use channels by taking the e ects of intersymbol interference (ISI) over several chips into account. We evaluate howmuch the transmitted power should be increased on di use channels to compensate the performance degradation due to the ISI.

This paper proposes a semiconductor optical amplifier (SOA)-based multilevel polarization shift on–off keying (MPS-OOK) transmission for free-space (FSO) communication. At the transmitter end, MPS-OOK signal is modulated with constant linear state of (SOP) at high-intensity level and various SOPs low-intensity in order to improve spectral efficiency (SE) transmitted power efficiency. receiver f...