List of Articles PWE Open Access Article Abstract Page Full-Text 1 - Design of an Improved Optical Filter Based on Dual-Curved PCRR for WDM Systems Vahid Fallahi Mahmood Seifouri 20.1001.1.24237361.2017.2.4.4.4 Open Access Article Abstract Page Full-Text 2 - Novel Four-Channel All Optical Demultiplexer Based on Square PhCRR for Using WDM Applications Vahid Fallahi Mahmood Seifouri 20.1001.1.24237361.2018.3.4.5.2 Open Access Article Abstract Page Full-Text 3 - Novel structure of optical add/drop filters and multi-channel filter based on photonic crystal for using in optical telecommunication devices Vahid Fallahi Mahmood Seifouri 20.1001.1.24237361.2019.4.2.5.5