Waveguide

Details Waveguide Waveguide

H - Electricity

01

S

H01S 5/10 (2006.01) G02B 6/12 (2006.01) G02B 6/122 (2006.01) H01S 5/026 (2006.01)

Patent

CA 2292907

The invention relates to a semiconductor laser, which can be butt-joint coupled to an optical fibre, by virtue of the fact that, in an end region of the laser device, power is coupled from an active waveguide, with a narrow mode, into a passive waveguide, with a wide mode. The active waveguide has an asymmetrical taper, formed by a diagonal etch across the active layer during fabrication.

L'invention concerne un laser à semi-conducteur pouvant être couplé bout à bout avec une fibre optique, grâce au fait qu'à une zone d'extrémité du laser, une puissance est couplée, à partir d'un guide d'ondes actif à mode étroit, dans un guide d'ondes passif à mode large. Le guide d'ondes actif présente une conicité asymétrique formée par attaque chimique diagonale à travers la couche active lors de la fabrication.

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