Semiconductor laser amplifiers

H - Electricity – 01 – S

Patent

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Details

H01S 3/00 (2006.01) H01S 3/07 (2006.01) H01S 5/50 (2006.01) H04B 10/16 (2006.01)

Patent

CA 2045405

A semiconductor laser amplifier includes both a waveguide layer (3) and an active layer (4). In use, an optical wave in the active layer (4) interacts with the waveguiding layer to reduce the polarisation sensitivity of the amplifier. A short, thick active layer is not required, typical dimensions being 250 or 500 µm long, by 0.2 µm high. The mesa (15) is typically about 2 µm wide, but may be wider.

L'invention est un amplificateur de laser à semi-conducteur comportant une couche de guidage (3) et une couche active (4). En mode d'utilisation, une onde lumineuse dans la couche active (4) est en interaction avec la couche de guidage pour réduire la sensibilité de polarisation de l'amplificateur. Il n'est pas nécessaire d'utiliser une couche active courte et épaisse, les dimensions typiques étant une longueur de 250 à 500 µm et une hauteur de 0,2 µm. La structure mesa (15) a une largeur typique de 2 µm, mais peut être plus large.

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