Active–passive Q-switched fiber laser based on graphene microfiber

Li, Duidui; Zhu, Jiwen; Jiang, Man; Li, Diao; Wu, Hao; Han, Jing; Sun, Zhipei; Ren, Zhaoyu

doi:10.1007/s00340-019-7312-y

Cited by 7 publications

(3 citation statements)

References 28 publications

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“…In 2018, Wang et al [114] reported that using a graphene-coated microfiber saturable absorber, the generation and evolution of multiple operation states were proposed and demonstrated in passively mode-locked thulium-doped fiber laser. Recently, Li et al [115] reported an active-passive Q-switched laser based on graphene-covered microfiber, which not only served as a passive saturable absorber in a single laser cavity, but also could be used as an all-optical modulation device.…”

Section: Saturable Absorber In Fiber Lasersmentioning

confidence: 99%

Graphene-Coated Nanowire Waveguides and Their Applications

Teng

Wang

2020

Nanomaterials

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In recent years, graphene-coated nanowires (GCNWs) have attracted considerable research interest due to the unprecedented optical properties of graphene in terahertz (THz) and mid-infrared bands. Graphene plasmons in GCNWs have become an attractive platform for nanoscale applications in subwavelength waveguides, polarizers, modulators, nonlinear devices, etc. Here, we provide a comprehensive overview of the surface conductivity of graphene, GCNW-based plasmon waveguides, and applications of GCNWs in optical devices, nonlinear optics, and other intriguing fields. In terms of nonlinear optical properties, the focus is on saturable absorption. We also discuss some limitations of the GCNWs. It is believed that the research of GCNWs in the field of nanophotonics will continue to deepen, thus laying a solid foundation for its practical application.

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Section: Saturable Absorber In Fiber Lasersmentioning

confidence: 99%

Graphene-Coated Nanowire Waveguides and Their Applications

Teng

Wang

2020

Nanomaterials

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“…12,13 These modulators possess typical drawbacks such as large footprint, high cost, and complexity in both fabrication and optical system integration. 14 Graphene is the most-known two-dimensional (2D) material that has been employed in an array of applications such as electro-optical modulators, [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] saturable absorbers, [31][32][33][34][35] photodetectors, 36 infrared spectroscopy, 37 and optical nanoimaging. 38 Optical modulators were also proposed by integrating other 2D materials such as boron nitride, 39 molybdenum disulfide (MoS 2 ), 40 and graphene/MoS 2 heterostructures.…”

Section: Introductionmentioning

confidence: 99%

Scalable graphene electro–optical modulators for all-fibre pulsed lasers

Lau

Perros

et al. 2021

Nanoscale

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“…One straightforward application of the configuration shown here is Q-switching of fiber lasers, with the particular advantage that all of the laser light would not go through the graphene layer but only a very small portion of it, and also that the fiber would not have to be physically modified. [12,13] Fibers used here have inherently zero transmission loss for the lengths used in such experiments, near zero insertion loss, and a wide array of relatively low-cost fiber-coupled instrumentation (sources, detectors, spectrum analysers, polarization controllers) is available because of the telecommunication industry and associated research and development activities.…”

Section: Introductionmentioning

confidence: 99%

Saturable Absorption and Bistable Switching of Single Mode Fiber Core‐Guided Light by a 6 nm‐thick, Few Layers Graphene Coating on the Cladding Surface

Liu

Guo

et al. 2020

Annalen der Physik

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The coupling of less than 80 µW of in‐plane polarized near‐infrared light in a 6 nm‐thick graphene layer deposited on an optical fiber produces important permittivity changes leading to bistability and self‐starting 50% modulation of over 1 W of continuous wave light in the core. These features arise from resonant coupling of core‐guided light into the cladding by a 12‐degree tilted, 1 cm long fiber Bragg grating via narrowband, polarization‐dependent resonances that allow the selection of cladding modes with electric fields polarized in the plane of the graphene. The pulse repetition rate of the modulation increases from 10 to 269 Hz for input powers ranging from 0.3 to 1.33 W in the core, with no evidence of saturation. Investigations into the origin of these effects through physical modelling and different experimental conditions point to photo‐induced Joule heating in the graphene layer giving rise to temperature increases of the order of 60 °C and corresponding permittivity changes in the graphene and underlying silica fiber. Those changes lead to shifts in the resonance positions which result in the equivalent of saturable absorption for light guided in the core without direct contact with the absorbing graphene layer.

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Active–passive Q-switched fiber laser based on graphene microfiber

Cited by 7 publications

References 28 publications

Graphene-Coated Nanowire Waveguides and Their Applications

Graphene-Coated Nanowire Waveguides and Their Applications

Scalable graphene electro–optical modulators for all-fibre pulsed lasers

Saturable Absorption and Bistable Switching of Single Mode Fiber Core‐Guided Light by a 6 nm‐thick, Few Layers Graphene Coating on the Cladding Surface

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