Abstract
The objective of the present study is to establish a versatile optimal control methodology for achieving desired spatio-temporal temperature distribution in various micro devices. Here we formulate the adjoint-based optimization scheme, which provides the optimal heat input so as to minimize the temperature variation in the active region of modeled vertical-cavity surface-emitting lasers (VCSELs). Surface heat flux from ring-type heater on the top surface is assumed as the control input. It is shown that the present control is effective for temperature control in VCSELs. The heat input from the ring heater is applied prior to the onset of the laser emission, which significantly suppresses the temperature variation.
