D. Neelima Patnaik & C. P. Vardhani 2021. Recent Study on LiTaO3 Directional Coupler Switch with Enhanced Extinction Ratio and Low Insertion Loss. Newest Updates in Physical Science Research Vol. 7. (May 2021), 8–15. DOI:https://doi.org/10.9734/bpi/nupsr/v7/6903D.