Tianqi WANG, Duidui LI, Beibei LIU, Man JIANG, Zhipei SUN, Zhaoyu REN. Active-passive Q-switched Fiber Laser Based on Graphene All-optical Modulation（Invited）[J]. Acta Photonica Sinica, 2022, 51(10): 1014004
- Acta Photonica Sinica
- Vol. 51, Issue 10, 1014004 (2022)
Fig. 1. The production process of graphene film
Fig. 2. Nonlinear absorption characteristic test experimental device
Fig. 3. Nonlinear characteristic curves of graphene films
Fig. 4. Active-passive Q-switched fiber laser based on graphene all-optical modulator
Fig. 5. Pulse width and pulse intensity vary with LiNbO3 modulator load voltage
Fig. 6. Output characteristics of Q-switched fiber laser
Fig. 7. Output characteristics of active-passive Q-switched fiber laser with pump power of 140 mW
Fig. 8. Tunable range of output pulse repetition rate and pulse width varies at different pump powers
Fig. 9. Effects of graphene films A，B，C on pulse repetition rate and pulse width variation range at different pump powers
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