Search

A novel method to expand compensation bandwidth (CBW) of a tunable dispersion compensator based on ring resonators has been proposed and experimentally verified. The employment of negative group delay peak increased the ratio of CBW against the free spectral range (25 GHz) from 75 to 86%, and the improved dispersion compensation characteristics were confirmed by a 10 Gbit/s transmission experiment. [ABSTRACT FROM AUTHOR]

Absorption recovery time and cross-phase modulation characteristics of an MQW electroabsorption modulator (EAM) were experimentally analysed. 80 Gbit/s error-free operation of a wavelength converter using MQW EAM in delayed-interferometer configuration was demonstrated for the first time. [ABSTRACT FROM AUTHOR]

An all-optical multi-wavelength converter using a semiconductor optical amplifier based Mach-Zehnder interferometer is proposed and demonstrated. The proposed scheme can accommodate both NRZ and RZ format. WDM multicasting is confirmed by transmission experiment using conventional singlemode fibre before and after the multi-wavelength converter. [ABSTRACT FROM AUTHOR]

A two-dimensional electro-optic sampling technique with polarity modulation for THz imaging is proposed and demonstrated. The polarity modulation greatly improves the signal linearity to the THz field. Combining this technique with software lock-in detection, it is found that the modulation efficiency is also improved compared to conventional optical chopping. [ABSTRACT FROM AUTHOR]