Transmissive Fiber Bragg Grating-Based Delay Line Interferometer for RZ-OOK to NRZ-OOK Format Conversion. - Xin Liu 041; Zuowei Xu; Miguel A. Preciado; Adenowo Gbadebo; Lin Zhang; Jiabi Xiong; Yu Yu 005; Hui Cao; Xuewen Shu (IEEE Access, 2019)