Semiconductor laser or light amplifier

Details Semiconductor laser or light amplifier Semiconductor laser or light amplifier

H - Electricity

01

S

345/32

H01S 5/223 (2006.01)

Patent

CA 1243104

17 ABSTRACT: Semiconductor device for producing or amplifying electro- magnetic radiation and method of manufacturing same. Semiconductor device for producing or amplify- ing electromagnetic radiation, more particularly a semi- conductor laser, having a substrate 1 which has a mesa- shaped raised portion 3. On either side of the mesa 3 there is located a blocking layer 14 of a conductivity type opposite to that of the substrate. On the blocking layer 14 are formed a first passive layer of the same conductivity type as the substrate, an active layer 8 and a second passive layer 9 of a conductivity type op- posite to that of the substrate 1. According to the in- vention, the blocking layer 14 extends also over the mesa 3, which is connected by diffusion from at least the first passive layer 6 to the blocking layer. Figure 1.

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