Joshi, Sunil, and Gaurav Sharma. “Non-Linear Distortion & Its Reduction Techniques for Coherent Optical OFDM System: A Review”. Journal of Advance Research in Electrical & Electronics Engineering (ISSN 2208-2395) 2, no. 8 (August 31, 2015): 11–14. Accessed July 22, 2024. https://nnpub.org/index.php/EEE/article/view/179.