Cisco Technology, Inc.

Cambridge Enterprise Limited

Pirelli Cavi E Sistemi S.p.a.

I.r.c.a. S.p.a. Industria Resistenze Corazzate E Affini

Consorzio Nazionale Interuniversitario Per Le Telecomunicazioni

Michele Midrio

Marco Romagnoli

Federico Zoppas

Andrea Carlo Ferrari

Luciano Socci

Michele Peterle

Pierluigi Franco

Raffaele Corsini

Antonio De Moliner

Vito Sorianello

Nicola Moret

Antonio Affanni

Alberto Montanaro

An RF transmitter comprising an optical source configured to generate a pair of optical lines separated by an RF carrier frequency. The transmitter may comprise a graphene photodetector having at least two electrical contacts; a transmit antenna coupled to a first of the electrical contacts; and an electrical data signal input connected to a second of the electrical contacts. The graphene photodetector is illuminated by the optical source; it may comprise a graphene photo-thermal effect (PTE) photodetector or a bolometric photodetector. A corresponding receiver is also described.

Transmitters and receivers

The present invention relates to a method and device for measuring the temperature in power resistors based on the measurement of the high-frequency circuit parameters of said resistor. The present invention excludes the use of thermocouples, dedicated temperature sensors or thermo chambers.

Method and device for measuring the temperature in electric power resistors

Device for performing a parametric process, comprising a substantially periodic photonic crystal structure comprising a plurality of unitary cells each comprising

Parametric device for wavelength conversion

A system for providing noise reduction in a long-distance telecommunications system is disclosed. A transmitter generates an optical signal. An optical link includes an optical amplifier that transmits the optical signal in a pre-established direction of propagation with substantially compensated dispersion to have an associated optical noise. A receiver is configured to receive a noisy optical signal including the transmitted optical signal and an optical noise signal. The receiver includes a photodetecting device that is configured to generate an electronic signal correlated with the noisy optical signal. The electronic signal being associated with a quality parameter (Q) that depends on said optical noise signal and distortion of the optical signal in the optical link. The optical link further includes a dispersive and nonlinear filtering device that has a normal dispersion and nonlinear component. The filtering device is placed along said optical link and has an associated normal dispersion parameter &bgr; &bull;L and a nonlinearity parameter &ggr; operatively selected so as to increase the quality parameter by at least 1 dB.

Method for the reduction of noise in a long-distance optical telecommunications system

Growing community of inventors

Padua, Italy

Michele Midrio