Wireless Optics - Fiber Coupling

This course delivers a focused and practical approach to understanding and mastering fiber coupling in wireless optical systems. As free-space optical (FSO) communication and optical wireless systems grow in importance, efficient coupling between wireless beams and optical fibers becomes a crucial step for minimizing loss and maintaining signal fidelity.

• Introduction to free-space optics (FSO) and fiber interfaces, fundamentals of beam–fiber coupling and loss mechanisms
• Gaussian beam parameters, waist radius, divergence, and mode matching to optical fiber cores
• Single-mode vs. multi-mode fiber coupling theory, coupling efficiency formulas and practical limits
• Numerical Aperture (NA), acceptance angle, Mode Field Diameter (MFD), and alignment tolerances
• Practical alignment techniques using lenses, mirrors, beam expanders, and steering modules
• Effects of atmospheric turbulence, beam wander, and pointing error on coupling stability
• Fiber coupling considerations in QKD, optical wireless backhaul, and hybrid RF/FSO links
• Case studies covering indoor optical links, atmospheric FSO terminals, and underwater optical coupling setups

• Optical and wireless communication engineers working on FSO, VLC, and hybrid optical links
• Fiber-optic engineers and photonics system designers focusing on coupling and alignment optimization
• Researchers and graduate students in optics, photonics, and quantum communication
• Engineers developing optical transceivers, sensors, and integrated photonic modules
• Defense, aerospace, and satellite communication teams dealing with long-range optical links
• Start-ups and R&D teams building optical hardware, beam steering, or precision alignment systems
• Academics and laboratory staff involved in experimental optical setups and measurement systems