Single Frequency Fiber Lasers and Their Applications

Dear Colleagues,

Single-frequency fiber lasers have attracted wide attention owing to their distinctive advantages such as narrow linewidth, low noise, high efficiency, operating in both near-infrared (NIR) and mid-infrared (MIR) regions, as well as preferred all-fiber structure with excellent beam quality, high compactness and free of maintenance. They can be broadly used in applications from advanced scientific research to practical applications, including cold atom physics, optical atomic clocks, measurements of fundamental constants and physics, high-resolution spectroscopy, gravitational wave detection, laser weapons, LIDARs, long-haul coherent communications, high-precision optical sensing and so on. In the last two decades, the performance of single-frequency fiber lasers has been improved significantly based on the developments of related basic techniques, including specialty fibers, optical filters, noise suppression and linewidth compression. In addition, single-frequency fiber lasers based on special oscillation mechanisms (such as stimulated Brillouin scattering (SBS), stimulated Raman scattering (SRS), random distributed feedback, etc.) and new fiberglass matrices emitting in new spectral ranges have been widely studied as well. Moreover, novel mathematical analysis methods are being developed to study and optimize the performance of various single-frequency fiber lasers.

The purpose of this Special Issue is to attract the latest theoretical and experimental results about single-frequency fiber lasers and recent developments in their applications.

Topics to be covered include, but are not limited to, the following:

• Fiber lasers operating in traditional and new spectral ranges from NIR to MIR regions;
• New gain optical fibers and gain mechanisms (SBS-based and SRS-based);
• Novel single-longitudinal-mode or single-frequency selection mechanisms;
• Novel optical filters (fiber-based and waveguide-based);
• Laser frequency stabilization, noise suppression and linewidth compression methods;
• Single-frequency laser amplifying and high-power fiber lasers;
• Multi-wavelength lasing, and wavelength-switchable and tunable operations;
• Single-frequency Q-switched lasing operation;
• theoretical modeling of single-frequency fiber lasers; new materials used as saturable absorbers in fiber lasers;
• Practical applications such as LIDAR, optical communication, fiber sensor, spectroscopy, laser manufacturing, microwave photonics, and all other related areas.

Prof. Dr. Ting Feng
Prof. Dr. Guolu Yin
Dr. Wanjing Peng
Dr. Bin Yin
Guest Editors

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