Progress and Perspectives for Ultra-Low Loss Hollow Core Fibers

Over the past two decades, hollow core fibers have emerged as a groundbreaking technology that addresses the inherent limitations of traditional glass core-based telecom fibers. Recent advancements in a novel guidance mechanism, utilizing antiresonances from nested tubes, have significantly accelerated progress. As a result, hollow core technology now boasts the lowest attenuation of any developed waveguide, making it a highly efficient option for data transmission.