中国物理B ›› 2010, Vol. 19 ›› Issue (7): 74212-074212.doi: 10.1088/1674-1056/19/7/074212

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

All-normal-dispersion Yb-doped mode-locked fibre laser and its stability analysis

孔令杰, 肖晓晟, 杨昌喜   

  1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • 修回日期:2009-12-14 出版日期:2010-07-15 发布日期:2010-07-15

All-normal-dispersion Yb-doped mode-locked fibre laser and its stability analysis

Kong Ling-Jie (孔令杰), Xiao Xiao-Sheng (肖晓晟), Yang Chang-Xi (杨昌喜)   

  1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • Revised:2009-12-14 Online:2010-07-15 Published:2010-07-15

摘要: We experimentally demonstrate an all-normal-dispersion Yb-doped mode-locked fibre laser with no intentional spectral filter inserted. Pulses with 1.1 nJ pulse energy at a repetition rate of 20.4 MHz are achieved. A theoretical model of the fibre laser is derived, whose coefficients are explicitly dependent on the orientations of the wave plates and the polarizer. Based on the model, stability diagrams of both the mode-locking and the continuous wave regimes of the laser are presented. The influence of group-velocity dispersion (GVD) and cavity length on the stability of mode-locking is also discussed.

Abstract: We experimentally demonstrate an all-normal-dispersion Yb-doped mode-locked fibre laser with no intentional spectral filter inserted. Pulses with 1.1 nJ pulse energy at a repetition rate of 20.4 MHz are achieved. A theoretical model of the fibre laser is derived, whose coefficients are explicitly dependent on the orientations of the wave plates and the polarizer. Based on the model, stability diagrams of both the mode-locking and the continuous wave regimes of the laser are presented. The influence of group-velocity dispersion (GVD) and cavity length on the stability of mode-locking is also discussed.

Key words: fibre laser, mode-locking, ytterbium

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.60.By (Design of specific laser systems) 42.60.Fc (Modulation, tuning, and mode locking) 42.79.Ci (Filters, zone plates, and polarizers)