Saturable absorber based on slightly tapered graded-index multimode fiber covered with graphene

Hua, Kuo; Wang, D.N.; Xia, Qinfeng; Chen, Jikai

doi:10.1016/j.optcom.2021.127063

Cited by 2 publications

(1 citation statement)

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“…Although SESAM is produced using the most advanced technology, its use is constrained by its high cost, low damage threshold, and limited operating bandwidth. NPE [9] and nonlinear amplified loop mirror (NALM) are devices with poor stability in practical applications [15,16]. The length of no core fiber used in Zhu et al's devices needs to be accurately controlled at ∼100 µm, which not only makes production more challenging but also causes a significant insertion loss.…”

Section: Introductionmentioning

confidence: 99%

Saturable absorber based on tapered graded-index multimode fiber with ZnO coating for bound solitons generation

Jin¹,

WANG²,

Cai³

et al. 2023

Laser Phys. Lett.

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A passively mode-locked erbium-doped fiber laser with a saturable absorber (SA) based on a tapered graded-index multimode fiber with zinc oxide coating is proposed and demonstrated in this paper. The device is also a platform supporting various types of solitons outputs. The conventional solitons with center wavelength of 1558.86 nm, pulse width of 537 fs, and signal-to-noise ratio of 61.27 dB are generated at the repetition frequency of 18.37 MHz. By adjusting the polarization controller and increasing pump power, tightly and loosely bound solitons and two-fold solitons can be generated. The pulse trains of tightly bound solitons exhibit the separation of 1.91 ps, the pulse width of ∼707 fs, and centered at 1560 nm, whereas the pulse separation of loose bound solitons is 18.06 ps. Such a SA is easy in fabrication and highly stable in operation and can enrich the exploration of multi-soliton complexes.

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Section: Introductionmentioning

confidence: 99%