Innovations in Fiber Laser Technology

Dear Colleagues,

The concept of the fiber laser was first proposed by E. Snitzer in 1961, followed by the demonstration of laser action in a neodymium-doped fiber by Snitzer and his colleague in 1964. Since then, fiber lasers have gradually revolutionized various fields with their high efficiency, compact size, and superior beam quality, making them indispensable in applications ranging from communications to industrial processing.

Innovations in fiber laser technology have enabled the fast progress of fiber lasers over the past six decades, ranging from visible to mid-infrared wavelengths, and the maximum output power has reached 150 kW through beam combination. The temporal properties of fiber lasers span continuous wave, quasi-continuous wave and pulsed operation, with pulse durations ranging from ms to fs. The beam profiles of fiber lasers can be extensively customized through specially designed fibers and electronic servo systems. Although the development of fiber lasers is prominent, recently emerging techniques such as artificial intelligence have brought fiber lasers into a more innovative era, making fiber lasers smarter, more efficient, more powerful and more practical. We believe that innovations in fiber laser technology will further drive their development and applications.

This Special Issue aims to publish high-quality research and review papers related to innovations in fiber laser technology. Research areas may include (but are not limited to) the following topics:

• Novel optical fibers;
• Functional fiber-based devices;
• Fabrication and characterization techniques of fibers;
• Advances in high-power fiber lasers;
• Pulsed fiber lasers;
• Mid-infrared fiber lasers;
• Beam combination of fiber lasers;
• Nonlinear effects, mode instability, and new phenomena in fiber lasers;
• Mode decomposition and control technique of fiber lasers;
• Beam quality evaluation for fiber lasers;
• Computational modeling and simulation of fiber laser dynamics;
• Fiber laser applications in materials processing, sensing, imaging, and communications.

Dr. Yi An
Dr. Jiaxin Song
Dr. Hanshuo Wu
Guest Editors

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