H - Electricity – 01 – S
Patent
H - Electricity
01
S
345/32
H01S 3/18 (1985.01)
Patent
CA 1203611
LASER WITH MODE CONTROL AND PUMP CURRENT CONFINEMENT ABSTRACT OF THE INVENTION A diode laser in which improved transverse mode control is achieved by bounding at least one side of the laser active region (in which the lowest order transverse mode exists) by a thicker, lower index of refraction region of higher bandgap. The thicker, higher bandgap region, as well as a pump current confinement path, can be provided by a relatively deep substrate surface channel which extends completely through a portion of a rectifying junction formed near the substrate surface.
303315
Burnham Robert D.
Scifres Donald R.
Sim & Mcburney
Xerox Corporation
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