Perlicki, Krzysztof. “Polarization Pulling and Signal Amplification Using Raman Scattering for Polarization Division Multiplexing Transmission System”. Photonics Letters of Poland 3, no. 4 (December 29, 2011): pp. 159–161. Accessed April 26, 2024. https://www.photonics.pl/PLP/index.php/letters/article/view/3-56.