Brahma, Debolina, Sanchita Goswami, and Sambhunath Biswas. “Design Characterization of Erbium-Doped Fiber Ring Laser Using a Circulator and Filter for C and L Band Amplification”. Photonics Letters of Poland 6, no. 1 (March 31, 2014): pp. 38–40. Accessed November 23, 2024. http://photonics.pl/PLP/index.php/letters/article/view/6-14.