A Novel Flattened Gain RAMAN-Photonic Crystal Quantum Dot Semiconductor Hybrid Optical Amplifier in U Band for Super Dense Wavelength Division Multiplexing System. IJEMS [Internet]. 2023 Dec. 1 [cited 2026 May 13];30(6):796. Available from: https://or.niscpr.res.in/index.php/IJEMS/article/view/480