Direct growth of a graphitic nano-layer on optical fibers for ultra-fast laser application

Yang, Conghao; Liao, Yun; Qiu, Yang; Dai, Hanqing; Zhu, Detao; Zhu, Zhaojie; Zhang, Zuxing; Yu, Kehan; Wei, Wei

doi:10.1039/c7ra10260g

Cited by 10 publications

(2 citation statements)

References 42 publications

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“…Compared with the Fabry-Perot resonator without graphene, the graphene coating allows more light confined by the cladding leaking into the surrounding medium, and then the distribution of the evanescent field and spectral properties can be obviously modulated [25]. The graphene was grown on fibers by using radio-frequency plasma enhanced chemical vapor deposition technique (RF-PECVD) [31][32]. As shown in Fig.…”

Section: Device Design and Preparationmentioning

confidence: 99%

Ultrasensitive sensing in air based on graphene-coated hollow core fibers

et al. 2018

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The mismatching between permittivities of guided mode and air limits the operation of accurately monitoring the change in the refractive index of the surrounding air. To solve it, we propose a platform using a hollow core fiber with the integration of graphene coating. Experimental results demonstrate that the anti-resonant reflecting guidance has been enhanced while it induces sharply and periodically lossy dips in the transmission spectrum. We conclude a sensitivity of -365.9 dB/RIU and a high detection limit of 2.73 × 10 RIU by means of interrogating the intensity of the lossy dips. We believe that this configuration opens a direction for highly sensitive sensing in researches of chemistry, medicine, and biology.

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Section: Device Design and Preparationmentioning

confidence: 99%

Ultrasensitive sensing in air based on graphene-coated hollow core fibers

et al. 2018

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“…Graphene, the most representative two-dimensional (2D) nanomaterial, has been extensively investigated as a SA in ultrafast photonics [15][16][17][18]. The unique properties of graphene, including massless Dirac fermions, low saturation intensity, broadband optical absorption, and fast relaxation mechanism make it an excellent material for mode-locked lasers [19][20][21][22]. Zhang et al reported on chemical vapor deposition (CVD) deposited graphene as the mode locker for the first time, which opened the door for using 2D materials as SAs in ultrafast photonics [23].…”

Section: Introductionmentioning

confidence: 99%

Feasible fabrication of graphitic nano-layer saturable absorbers on fiber-ends for ultrashort pulse generation

Qiu¹,

Liao²,

Zhang³

et al. 2019

Laser Phys. Lett.

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High-performance graphene based saturable absorbers with large modulation depth and high damage threshold are desired for mode-locked lasers. Here, we report direct growth of a graphitic nano-layer (GNL) on an optical fiber-end using plasma-enhanced chemical vapor deposition. The GNL exhibits outstanding nonlinear saturable absorption properties at 1.55 µm: a modulation depth of up to 28.3% and a large damage threshold. Stable modelocked pulses with pulse duration as short as 561 fs and spectral bandwidth of 4.86 nm are achieved. The results show that our fabrication method is promising for graphene based photonic applications.

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