中国物理B ›› 2018, Vol. 27 ›› Issue (8): 84215-084215.doi: 10.1088/1674-1056/27/8/084215

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

Generation and evolution of multiple operation states in passively mode-locked thulium-doped fiber laser by using a graphene-covered-microfiber

Xiao-Fa Wang(王小发), Jun-Hong Zhang(张俊红), Xiao-Ling Peng(彭晓玲), Xue-Feng Mao(毛雪峰)   

  1. College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Key Laboratory ofOptical Fiber Communication Technology, Chongqing Education Commission, Chongqing, China
  • 收稿日期:2018-03-10 修回日期:2018-04-26 出版日期:2018-08-05 发布日期:2018-08-05
  • 通讯作者: Xiao-Fa Wang E-mail:wangxf@cqupt.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11304409 and 61705028), the Natural Science Foundation of Chongqing City, China (Grant Nos. csct2013jcyjA4004 and cstc2017jcyjA0893), the Scientific and Technological Research Program of Chongqing Municipal Education Commission, China (Grant No. KJ1500422), and the Postgraduate Research Innovation Foundation of Chongqing City, China (Grant No. CYS17240).

Generation and evolution of multiple operation states in passively mode-locked thulium-doped fiber laser by using a graphene-covered-microfiber

Xiao-Fa Wang(王小发), Jun-Hong Zhang(张俊红), Xiao-Ling Peng(彭晓玲), Xue-Feng Mao(毛雪峰)   

  1. College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Key Laboratory ofOptical Fiber Communication Technology, Chongqing Education Commission, Chongqing, China
  • Received:2018-03-10 Revised:2018-04-26 Online:2018-08-05 Published:2018-08-05
  • Contact: Xiao-Fa Wang E-mail:wangxf@cqupt.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11304409 and 61705028), the Natural Science Foundation of Chongqing City, China (Grant Nos. csct2013jcyjA4004 and cstc2017jcyjA0893), the Scientific and Technological Research Program of Chongqing Municipal Education Commission, China (Grant No. KJ1500422), and the Postgraduate Research Innovation Foundation of Chongqing City, China (Grant No. CYS17240).

摘要: Using graphene-covered-microfiber (GCM) as a saturable absorber, the generation and evolution of multiple operation states are proposed and demonstrated in passively mode-locked thulium-doped fiber laser. The microfiber was fabricated using the flame brushing method to an interaction length of~1.2 cm with a waist diameter of~10 μm. Graphene layers were grown on copper foils by chemical vapor deposition and transferred onto the polydimethylsiloxane (PDMS) to form a PDMS/graphene film, which allowed light-graphene interaction via evanescent field. With the increase of the pump power from 1.25 W to 2.15 W, five different lasing regimes, including continuous-wave, conventional soliton mode-locking, multi-soliton mode-locking, a period of transition, and noise-like mode-locking, were achieved in a fiber ring cavity. To the best of our knowledge, it is the first report of the generation and evolution of multiple operation states by covering graphene on the microfiber in the 2-μm region. The results demonstrate that GCM can be a promising method for fabricating all fiber SA, and the switchable operation states can provide more portability in complex application domain.

关键词: fiber lasers, mode-locked, thulium-doped fiber, graphene, microfiber

Abstract: Using graphene-covered-microfiber (GCM) as a saturable absorber, the generation and evolution of multiple operation states are proposed and demonstrated in passively mode-locked thulium-doped fiber laser. The microfiber was fabricated using the flame brushing method to an interaction length of~1.2 cm with a waist diameter of~10 μm. Graphene layers were grown on copper foils by chemical vapor deposition and transferred onto the polydimethylsiloxane (PDMS) to form a PDMS/graphene film, which allowed light-graphene interaction via evanescent field. With the increase of the pump power from 1.25 W to 2.15 W, five different lasing regimes, including continuous-wave, conventional soliton mode-locking, multi-soliton mode-locking, a period of transition, and noise-like mode-locking, were achieved in a fiber ring cavity. To the best of our knowledge, it is the first report of the generation and evolution of multiple operation states by covering graphene on the microfiber in the 2-μm region. The results demonstrate that GCM can be a promising method for fabricating all fiber SA, and the switchable operation states can provide more portability in complex application domain.

Key words: fiber lasers, mode-locked, thulium-doped fiber, graphene, microfiber

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.60.Fc (Modulation, tuning, and mode locking) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression)