Ashiq Rahman and Sunil Thapa and Shunyao Fan and Niloy K. Dutta, Mode-Locked Fiber Laser Using Charcoal and Graphene Saturable Absorbers to Generate 20-GHz and 50-GHz Pulse Trains, Respectively. journal = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology. July 2023, vol. 199(7). 69 - 77 [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10013171.