Hanan K. Abdulkrim NIHSJA. Production Survey of Designing a Hybrid Optical Amplifier (HOP) for WDM Systems by Using EDFA and RAMAN Amplifiers. DE [Internet]. 2021Aug.7 [cited 2024May2];:7476-91. Available from: http://thedesignengineering.com/index.php/DE/article/view/3257