Raval Shivani, and Jitendra Patel. “Mitigation of Nonlinear Impairments Using DSP for 2×1 100 Gbps PDM-QPSK”. International Journal of Advance Research in Engineering, Science & Technology 4, no. 6 (June 25, 2017): 197–203. Accessed December 16, 2025. https://ijarest.org/index.php/ijarest/article/view/1617.