Switchable dual-wavelength fiber laser mode-locked by monolayer graphene on D-shaped fiber |
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| Authors: | H.R. Yang |
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| Affiliation: | 1. State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, Chinayanghuiran@opt.cn |
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| Abstract: | A switchable mode-locking fiber laser is demonstrated by means of a monolayer graphene saturable absorber (SA) based on a D-shaped fiber. The monolayer graphene, which is grown by chemical vapor deposition, is transferred onto the D-shaped fiber and then the light–graphene interaction via the evanescent field of the fiber is enhanced greatly. Using such a graphene-based SA, the single-wavelength mode locking can be switched from 1531.5 to 1559.1 nm by appropriately adjusting the polarization controller (PC). In addition, the stable dual-wavelength mode-locking operation is also observed at the proper state of PC. |
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| Keywords: | graphene D-shaped fiber evanescent field mode locking |
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