Towards Practical All-Fiber Laser Gas Sensors Using Anti-Resonant Hollow-Core Fibers

Anti-resonant hollow-core fibers have proven great replacement for the conventional gas cells in spectroscopic systems. Although this new technology has been so far demonstrated almost only in laboratory conditions, it shows great potential for practical applications. New methods for enhancing the performance of hollow-core-fibers-based gas sensors will be presented in several novel methane sensing setups operating in both near- and mid-infrared. The performance of the setups will be discussed in terms of their applications in real-world sensing scenarios.