Alcatel

Alcatel Cit

Philippe Pagnod-Rossiaux

Leon Goldstein

Alexandre Shen

Fabrice Devaux

Paul Salet

Roland Mestric

Francois Brillouet

Christophe Starck

Monique Renaud

Patrick Garabedian

Fr&eacute;d&eacute;ric Pommereau

Bernard Martin

In a device for regenerating a wavelength-division multiplex optical signal, the optical signal to be regenerated comes from an optical fiber and is injected back into the same optical fiber or into another fiber. The device comprises at least one dispersive medium for receiving the wavelength-division multiplex signal and emitting a corresponding dispersed wave into a free space and a saturable absorber which receives the dispersed wave and transmits a corresponding regenerated wave.

Device including a saturable absorber for regenerating a wavelength-division multiplex signal

A method of fabricating an optical integrated circuit comprising at least one etched and buried BRS waveguide coupled to at least one etched but not buried ridge waveguide includes defining an imprint for the two types of guide beforehand, using a common mask, and then defining the two types of guide by successive etching operations.

Method of fabricating an optical integrated circuit

The energization current of an indium phosphide or gallium arsenide double channel semiconductor laser is confined within a laser stripe by near and far current blocking arrangements. The near current blocking arrangements are formed by a blocking junction formed in two lateral channels delimiting the stripe. The far current blocking arrangements are formed by an iron-doped semi-insulative layer grown epitaxially before the lateral channels are etched. A particular application is to the fabrication of pump lasers used in optical amplifiers of optical fiber links.

Double channel semiconductor laser and method of fabricating it

Growing community of inventors

St Germain les Arpajon, France

Philippe Pagnod-Rossiaux