We demonstrate an all-optical non-return-to-zero differential phase shift keying (NRZ-DPSK)
to return-to-zero differential phase shift keying (RZ-DPSK) format conversion with …

We report on a wavelength converter based on dual pump wave mixing in an 1-mm-long
bulk semiconductor optical amplifier. Very high conversion efficiency (more than 0 dB) and …

Optically transparent wavelength converters, in which the output is a wavelength-converted
replica of the input, may be required to improve performance and ease management in …

Differential quadrature phase shift keying (DQPSK) modulation has become particularly
attractive in high-speed optical communications because of its resistance to fiber …

The wavelength convertor is considered a key component in future optical reconfigurable
networks since it can reduce the number of power-hungry high-speed optical-electronic …

A novel ultrafast tunable all-optical wavelength conversion for polarization-shift-keying
(PolSK) signal based on dual-pump four-wave mixing (FWM), including parallel dual-pump …

We experimentally investigate broadband regenerative capability of four-wave mixing
(FWM) in a semiconductor optical amplifier (SOA) for nonreturn-to-zero differential phase …

We investigate theoretically and experimentally the dynamic characteristics of the
wavelength conversion that is based on four-wave mixing (FWM) in a light-holding …

We demonstrate equalization of the frequency-shift dependent conversion efficiency of four-
wave mixing (FWM) in semiconductor optical amplifiers (SOAs). The wavelength converter …

We demonstrate wavelength conversion based on four-wave mixing in a semiconductor
optical amplifier of signals with quadrature amplitude modulation (QAM). We first …