Fabrication and Characterization of Gallium Arsenide/aluminum Gallium Arsenide Semiconductor Ring Laser for Realization of Miniature Gyroscope

To this end, my work focuses on fabrication and characterization of one of the key elements of a GaAs/AlGaAs semiconductor ring laser (SRL) gyroscope, SRL. The goal of the thesis is to fabricate a SRL with characteristics required for its use in a SRL gyroscope. In this thesis, I first describe the working principle of the SRL gyroscope. The lock-in in the SRL is explained and an approach to break the lock-in is described. Then the effort put into the fabrication of SRL, problems faced and methods used to rectify them is described in detail. Afterwards, I explain the test setup built to characterize the fabricated SRLs. Finally, I quantify the results obtained by characterizing the fabricated structures and research to follow in the future.