光纤激光器在光纤通信、激光加工等领域具有广泛的应用。光纤Bragg光栅(FBG)是构成全光纤激光器的关键器件。FBG飞秒激光制备技术适用于各种材料的光纤,具有加工工艺简单、可制备耐高温FBG等优点,在光纤激光器中已取得广泛应用。基于此,介绍了FBG飞秒激光制备技术的方法、特点及其在光纤激光器应用中的优势,展示了FBG飞秒激光制备技术在不同波长范围和类型的光纤激光器中的应用研究进展,最后对未来适用于光纤激光器的FBG飞秒激光刻写技术的发展方向进行展望。

Fiber lasers have wide applications in fiber communication, and laser micromachining. Fiber Bragg grating (FBG) is one of the key components of all fiber lasers. The fabrication technique of FBG that uses femtosecond laser has received considerable attention owing to its advantages such as wide applicability for various fiber materials, simple process, and fabricated FBG with high temperature resistance compared with the traditional FBG inscription technique. It has been widely used in all fiber lasers. This study introduces the basic methods, characteristics, and advantages of the technique of inscribing FBG with a femtosecond laser. Then, the latest research advances in the application of femtosecond laser-inscribed FBGs on fiber lasers with different wavelengths and types are demonstrated. Finally, the future development of this technology is discussed.