Patent ID: 6181722
Filing Date: 2001-01-30
Classification: B82Y,G02B,H01S

Abstract:
An optical semiconductor component (BE1; BE2), which has a substrate (SUB) and a deep ridged waveguide (RIDGE) with a cover layer (DS) arranged on the substrate (SUB), wherein:the ridged waveguide (RIDGE) contains a first waveguide core (MQW) and a second waveguide core (BULK), whose respective refractive indexes are greater than refractive indexes of the cover layer (DS) and the substrate (SUB);the first waveguide core (MQW) contains one or several optically active semiconductor layers;in a first transition area (UB1), a thickness of the second waveguide core (BULK) decreases along a longitudinal direction (L) of the deep ridged waveguide (RIDGE) andin a second transition area (UB2), a thickness of the first waveguide core (MOW) decreases in a same direction (L) along which the thickness of the second waveguide core (BULK) decreases in said longitudinal direction, but that the thickness of the second waveguide core decreases independently of the decrease of the first waveguide core.