Mahato, Shilpa2025-09-222025-09-222025-09-222025-08-14https://hdl.handle.net/10012/22509Trapped-ion qubits have emerged as a leading architecture for building both digital and analog quantum computers. Their long coherence times, simple state preparation and measurement procedures, and laser-based qubit manipulation make them a promising platform for quantum information processing. An important feature that can make these systems more fault-tolerant and expand their capabilities to perform different classes of simulation is high-fidelity Mid-circuit Measurement and Reset (MCMR). Several techniques have been proposed for implementing MCMR in trapped-ion systems. Our group has taken a bold approach by relying on sophisticated optical engineering to generate a low-crosstalk individual addressing beam for performing MCMR. A Digital Micromirror Device (DMD), which is a 2D array of micro mirrors, is used to engineer an incoming wavefront to generate individual addressing beams at the ions using Fourier holography. The technique has been optimized with in-situ aberration compensation and the use of Iterative Fourier Transform Algorithm (IFTA) for hologram generation, forming the current state-of-the-art individual addressing system. In this thesis, two methods have been proposed that further strengthen our addressing system, making it more robust against measurement errors introduced by intensity crosstalk. The proposed methods, secondary grating method, and using the DMD in a double pass configuration have been successful in minimizing the absolute intensity crosstalk at the nearest neighbor and at the asymptotic limit. These improvements will have a significant impact on the current standing of MCMR fidelities in trapped-ion qubits.entrapped ionmcmrdmdindividual addressingfourier holographyMaster Thesis