Yadunath T.R.Sooraj R.Hegde G.Das P.P.Srinivas T.2021-05-052021-05-0520202020 IEEE Photonics Society Summer Topical Meeting Series, SUM 2020 - Proceedings , Vol. , , p. -https://doi.org/10.1109/SUM48678.2020.9161046https://idr.nitk.ac.in/handle/123456789/14956A promising optical integrated circuit device design for the generation of broadband, low order OAM modes with topological charges of +1 and +2 is successfully conceptualized using a combination of ring and point defect in thin photonic crystal slab structure with circular array of holes. © 2020 IEEE.Conference Paper