Thuy, Bui, Dang The Ngoc, & Le Trung Thanh. " On-Chip All-Optical Haar Transform Based on A 4x4 MMI Coupler Cascaded with a 2x2 MMI Coupler for Image Compression." VNU Journal of Science: Computer Science and Communication Engineering [Online], 39.2 (2023): n. pag. Web. 14 Oct. 2024