Wavelength-locked external cavity lasers with an integrated...

H - Electricity – 01 – S

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H01S 5/14 (2006.01) H01S 5/026 (2006.01) H01S 5/068 (2006.01) H01S 5/125 (2006.01)

Patent

CA 2381046

An optical transmitter providing the benefits of both filter-locked and wavelength-locked lasers is disclosed by mod- ifying an external cavity (32) for the integration of an optical modulator (14). The external cavity (32) provides a round-trip path for light travel. A substrate (24) is connected to the external cavity (32) where at least one gain element (16) and the optical modulator (14) are integral with the substrate (24). A partial reflector (40) is also integral with the substrate (24) and couples the at least one gain element (16) with the optical modulator (14).

La présente invention concerne un émetteur optique qui présente le double avantage d'un laser à verrouillage de longueur d'onde et d'un laser à verrouillage de filtre par la modification d'une cavité externe (32) destinée à intégrer un modulateur optique (14). Cette cavité externe (32) offre un trajet circulaire au cheminement de la lumière. Un substrat est connecté à la cavité externe (32) où au moins un élément de gain (16) et le modulateur optique (14) sont intégrés au substrat (24). Un réflecteur partiel (40) est également intégré au substrat (24) et relie le ou les éléments de gain (16) au modulateur optique (14).

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