Optical Frequency Combs: Precision and Applications

This lecture introduces optical frequency combs, which provide equidistant lines in the optical spectrum, serving as a direct link between optical and microwave frequencies. The instructor explains the generation of frequency combs in micro-rings and their applications in microresonator-based solitons and RF photonic filters. The lecture covers the concept of mode-locked lasers as frequency combs and the generation of Kerr frequency combs. Additionally, it explores the development of perfect soliton crystals and two-soliton microcomb RF filters. The optical frequency comb is highlighted as a powerful tool for measuring optical frequencies with high precision, converting them to microwave frequencies. The lecture emphasizes the significance of optical frequency combs in various applications, from optical communication to chemical detection.