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Abstract

A method for fabricating a semiconductor device on a semiconductor substrate, wherein the semiconductor device is adapted to provide target lasing properties, the method includes creating, a mask layer over the semiconductor substrate, the mask layer having at least one opening to expose a region of the semiconductor substrate, etching using a first etching process the exposed region, utilizing inductively coupled plasma with preselected first set of parameters to obtain a baseline mesa profile, the baseline mesa profile having a baseline mesa angle, re-etching using a second etching process the etched region, utilizing inductively coupled plasma with preselected second set of parameters, to alter the baseline mesa profile to obtain a requisite mesa profile having a requisite mesa angle defined by the target lasing properties and the requisite mesa angle being different from the baseline mesa angle, removing the mask layer and defining a p-n junction for the semiconductor substrate.

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First Claim