Biomedical subjects

Juerg Leuthold

Publications and source records attributed to Juerg Leuthold.

2 recordsLinked to original sources

PubMed2004

Relation between vestigial-sideband filtering and pi/2 progressive phase shift.

We show that a Gaussian-shaped vestigial-sideband (VSB) return-to-zero (RZ) on-off-keying (OOK) optical signal is essentially a RZ OOK signal with pi/2 progressive phase shift. The reduced intersymbol interference of the VSB signal can be explained as a destructive interference effect. We experimentally demonstrate a method for generating an effective 40-Gbit/s VSB signal without relying on the detuning of an optical filter.

Journal Article↗

PubMed2003

Generation and detection of 80-Gbit/s return-to-zero differential phase-shift keying signals.

Nonlinear polarization rotation between a pump and a probe signal in a highly nonlinear fiber is used as a modulation process to generate 80-Gbit/s return-to-zero differential phase-shift keying signals. Its performance is analyzed and compared with a conventional on-off keying modulated signal.

Journal Article↗