A Fiber Laser Using Graphene-Integrated 3-D Microfiber Coil

oleh: Cheng Li, Jin-hui Chen, Shao-cheng Yan, Fei Xu, Yan-qing Lu

Format: Article
Diterbitkan: IEEE 2016-01-01

Deskripsi

We demonstrate a state variable fiber pulse laser based on a graphene-integrated microfiber device. A 3-D microfiber coil integrated with graphene acts as a polarization-sensitive saturable absorber. By adjusting the polarization controllers, stable Q-switched pulses and mode-locked rectangular pulses are observed. To our knowledge, this is the first study conducted to achieve switching between rectangular pulses and Q-switched pulses while keeping the pump power constant. The rectangular pulses have a pulsewidth and repetition rate of ~10 ns and ~940 kHz, respectively, and the Q-switched pulses have a pulsewidth and repetition rate of ~40 μs and ~4.8 kHz, respectively.