Coherent light generators – Particular active media – Semiconductor
Patent
1990-03-09
1990-12-11
Epps, Georgia
Coherent light generators
Particular active media
Semiconductor
372 44, 372 97, H01S 319
Patent
active
049775707
ABSTRACT:
A semiconductor laser array comprising plural semiconductor layers formed on a substrate having a laser active layer. The plural semiconductor layers define first and second end-faces which are for emitting laser light. Plural stripe-like current injection areas are also formed in the plural semiconductor layers. Each two adjacent current injection areas have a respective first distance therebetween at the first end-face, and each two adjacent current injection areas have a respective second distance therebetween at the second end-face,the first distance being greater than the second distance. Plural electrodes are provided for supplying current to the current injection areas. At least one of the electrodes has a stripe-like portion formed corresponding to the current injection areas, and has a pad portion which has a width greater than that of the stripe-like portion. The pad portion is for wire bonding, and is formed in an area other than the current injection areas.
REFERENCES:
patent: 4369513 (1983-01-01), Umeda et al.
patent: 4799229 (1989-01-01), Miyazawa et al.
Canon Kabushiki Kaisha
Epps Georgia
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