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Optical fiber technologies form the backbone of today’s high-speed internet infrastructure. Thanks to the emergence of high-gain optical amplifiers in the past few decades that led to the realization of optical fiber links spanning thousands of kilometers. Recent progress in the field of fiber optics, led to the development of fiber phase-sensitive amplifiers (PSA) with high gain and ultra-low noise properties making them a promising candidate for a variety of applications in modern communication technologies, such as microwave photonics, 5G technology, quantum communication, etc. In this talk, we will be discussing the physics of propagation of multiple waves through a nonlinear fiber and understanding their implications for the design of high-performance communication systems. In particular, we will be focusing on applications related to all-optical signal processing, microwave photonic links, and fiber-based quantum key distribution. |