• 文献标题:   Compression of the self-Q-switching in semiconductor disk lasers with single-layer graphene saturable absorbers
  • 文献类型:   Article
  • 作  者:   YU ZH, TIAN JR, SONG YR
  • 作者关键词:   semiconductor disk laser, graphene, compression
  • 出版物名称:   CHINESE PHYSICS B
  • ISSN:   1674-1056 EI 1741-4199
  • 通讯作者地址:   Beijing Univ Technol
  • 被引频次:   7
  • DOI:   10.1088/1674-1056/23/9/094206
  • 出版年:   2014

▎ 摘  要

We demonstrate the first use of single layer graphene for compressing self-Q-switching pulses in semiconductor disk lasers. The gain region of the semiconductor disk laser used InGaAs quantum wells with a central wavelength of 1030 nm. Due to self saturable absorption of the quantum wells, the disk laser emitted at the self-Q-switching state with a pulse width of 13 mu s. By introducing the single layer graphene as a saturable absorber into the V-shaped laser cavity, the pulse width of the self-pulse was compressed to 2 mu s with a lower pump power of 300 mW. As the pump power was increased, multiple pulses with the pulse width of 1.8 mu s appeared. The compression factor was about 7.2.