Generation and dynamics of special mode-locked pulses in an ultrafast Er-doped fiber laser with SMF-GIMF-SMF saturable absorber

Yingjie Lin , Qiong Zeng , Yubo Ji , Yufeng Song , Ke Wang , Zhenhong Wang

Optoelectronics Letters ›› 2025, Vol. 21 ›› Issue (5) : 265 -270.

PDF
Optoelectronics Letters ›› 2025, Vol. 21 ›› Issue (5) : 265 -270. DOI: 10.1007/s11801-025-4096-7
Article

Generation and dynamics of special mode-locked pulses in an ultrafast Er-doped fiber laser with SMF-GIMF-SMF saturable absorber

Author information +
History +
PDF

Abstract

In this paper, we have demonstrated an Er-doped ultrafast laser with a single mode fiber-gradient index multimode fiber-single mode fiber (SMF-GIMF-SMF, SMS) structure as saturable absorber (SA), which can generate not only stable single-pulse state, but also special mode-locked pulses with the characteristics of high energy and noisy behaviors at proper pump power and cavity polarization state. In addition, we have deeply investigated the real-time spectral evolutions of the mode-locked pulses through the dispersive Fourier transformation (DFT) technique. It can be found that the pulse regime can actually consist of a lot of small noise pulses with randomly varying intensities. We believe that these results will further enrich the nonlinear dynamical processes in the ultrafast lasers.

Cite this article

Download citation ▾
Yingjie Lin, Qiong Zeng, Yubo Ji, Yufeng Song, Ke Wang, Zhenhong Wang. Generation and dynamics of special mode-locked pulses in an ultrafast Er-doped fiber laser with SMF-GIMF-SMF saturable absorber. Optoelectronics Letters, 2025, 21(5): 265-270 DOI:10.1007/s11801-025-4096-7

登录浏览全文

4963

注册一个新账户 忘记密码

References

RIGHTS & PERMISSIONS

Tianjin University of Technology

AI Summary AI Mindmap
PDF

116

Accesses

0

Citation

Detail

Sections
Recommended

AI思维导图

/