Graphene q-switched tunable fiber laser

WebIn this paper, we demonstrate a narrow-linewidth tunable fiber laser based on laser-induced graphene (LIG) paper-heated fiber Bragg grating (FBG) with low voltage. A linewidth of less than 600 Hz is achieved by the combination of a piece of unpumped Er-doped fiber and an FBG. WebFeb 1, 2024 · 3. Result and discussion. In this work, we employed a SLM with polarization maintaining fiber (PMF) in the proposed tunable Q-switched fiber laser setup to provide spectral filter through the coupling light process between the slow and fast axes of birefringence fiber (PMF) [].In the SLM interferometer, input signal is split into two beams …

Molybdenum disulfide (MoS2) – based, tunable passively Q switched ...

WebJan 29, 2024 · In this paper, we demonstrate a narrow-linewidth tunable fiber laser based on laser-induced graphene (LIG) paper-heated fiber Bragg grating (FBG) with low voltage. A linewidth of less than 600 Hz is achieved by the combination of a piece of unpumped Er-doped fiber and an FBG. Changing the temperature of the FBG will result in the central … WebApr 10, 2024 · The use of unipolar barrier structures that can selectively block dark current but allow photocurrent to flow unimpededly has emerged as an effective strategy for constructing high-performance photodetectors. In particular, two-dimensional (2D) materials with tunable band structures and self-passivated surfaces not only satisfy band … how can i stop hot flashes naturally https://malagarc.com

Dual-wavelength Q-switched thulium-fluoride fiber laser for …

WebMar 17, 2024 · Broadband nonlinear optical modulators are necessary for versatile applications in optical communication, laser radar, laser manufacturing, etc. Here, we report that the zirconium triselenide (ZrSe3) nanoflakes exhibit robust broadband nonlinear optical absorption and can modulate the Nd:YVO4 solid-state laser and erbium-doped ZBLAN … WebOct 15, 2011 · The repetition rate of the fiber laser can be widely tuned from 140 to 257 kHz along with the increase of the pump power. To the best of our knowledge, this is the first report for passively Q-switched sub-100-ns pulse operation of a graphene-based saturable absorber in a Yb-doped fiber laser. WebJul 10, 2024 · A wavelength-tunable Q-switched erbium-doped fiber laser based on a digital micromirror device (DMD) is experimentally demonstrated. The Q-switched pulses are generated by incorporating a saturable absorption device made of graphene oxide. Stable Q-switched pulses at 1.5 µm band are obtained at a lo … how can i stop hormonal acne

Stable nanosecond pulse generation from a graphene-based passively Q ...

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Graphene q-switched tunable fiber laser

[1011.0115] Graphene Q-switched, tunable fiber laser - arXiv

WebJan 15, 2024 · A tunable passively Q-switched fiber laser is fabricated using a graphene saturable absorber. The graphene saturable absorber is composed of a tapered fiber coated with graphene nanosheets. It combines the abilities of a saturable absorber and power-dependent tunable filter, thereby simplifying the structure of the tunable … http://eprints.utm.my/id/eprint/100425/1/AzuraHamzah2024_PassivelyQ-SwitchedErbiumDopedFiberLaser.pdf

Graphene q-switched tunable fiber laser

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WebMar 30, 2024 · A passively Q-switched erbium-doped fiber laser (EDFL) using copper telluride-polyvinyl alcohol (Cu2Te-PVA) thin film as saturable absorber (SA) was proposed and demonstrated. The generated Q-switched pulses could be tuned over a tuning range of 44 nm from 1530 to 1574 nm, with the addition of a tunable bandpass filter into the C … WebOct 3, 2011 · A schematic diagram of our Q-switched, mode-locked erbium-doped fiber (EDF) laser incorporating a polarization sensitive saturable absorber is shown in figure 1(a). The laser had a ring cavity based on a 3 m EDF with a peak absorption of ∼20 dB/m at 1530 nm. The EDF was pumped by a 980 nm laser diode via a 980/1550 nm wavelength …

WebMar 1, 2024 · Popa, et. al., “ Graphene Q-switched, tunable fiber laser ... it is the first time that the Ag nanoplates saturable absorbers are utilized in the 1-μm Yb-doped Q-switched fiber laser. WebMar 23, 2024 · The third-order NLO properties were tested by using Z-scan technique with a 30-ps laser at 532 nm. The mechanism for the NLO properties was analyzed. The tunable saturable absorption and positive nonlinear refraction properties of Sb 2 S 3 /RGO composites were obtained, which can be applicable to the Q-switch, mode-locking, and …

WebJul 22, 2024 · In this paper, a passively Q-switched Erbium doped fiber laser (EDFL) by residing Graphene nanoplatelets (GnPs) embedded in polyvinyl alcohol (PVA) based satur… WebAbstract. We report experimental observation of multimode Q-switching and spatiotemporal mode locking in a multimode fiber laser.A typical steady Q-switching state is achieved with a 1.88 μs pulse duration, a 70.14 kHz repetition rate, and a 215.8 mW output power, corresponding to the single pulse energy of 3.08 μJ.We find weak spatial filtering is …

WebFeb 15, 2011 · We demonstrate a wideband-tunable Q-switched fiber laser exploiting a graphene saturable absorber. We get ∼ 2 μ s pulses, …

WebOne example of high-performance lasers is the Q-switched fiber laser, which can be realized from the Q-factor of the laser [1], [2]. Because of their high peak power, Q-switched lasers are frequently utilized in material processing [2] cosmetics, tattoo removal [3], range finding, optical sensor medicine and data storage industries [4]-[6]. how many people graduate collegeWebA passively Q-switched erbium-doped fiber laser (EDFL) was experimented on by employing graphene, single walled carbon nanotubes (SWCNT) and multi-walled carbon nanotube (MWCNT) saturable absorbers (SA). The SA film was obtained by embedding the graphene, SWCNT and MWCNT into polyvinyl alcohol (PVA). The graphene SA was … how can i stop judging peopleWebAs a Dirac material, an allotrope of graphene, namely γ-graphyne (γ-GY), is proved to have excellent nonlinear optical properties. Unfortunately, the saturable absorption properties and ultrafast photonics applications of γ-GY at the 1.5 μm band, which play vital roles in optical communication, have … how can i stop itching when i sweatWebThe SF Q-switched fiber laser has the characteristics of narrow line width and high coherence, and can further compress the pulse width and increase the beam power. ... Latest Research Progress. Harith Ahmad et al. reported a SLM tunable fiber laser based on graphene SA to generate radio frequency (microwave) signals how can i stop judging othersWebAbstract: A pulse width tunable passively Q-switched fiber laser is demonstrated by using a graphene saturable absorber (GSA) with graphene-covered-microfiber (GCM) structure. Due to the cross absorption modulation (XAM) effect in graphene, the modulation depth of the GSA could be varied from 3.22% to 2.16%%, which results in that the output ... how many people go undiagnosed with bpdWebThis is used to passively mode-lock an erbium-doped fiber laser working at 1559 nm, with a 5.24 nm spectral bandwidth and ∼460 fs pulse duration, paving the way to graphene-based photonics. ... Enhancing Q-Switched Fiber Laser Performance Based on Reverse Saturable and Saturable Absorption Properties of CuCrO2 Nanoparticle-Polyimide Films ... how many people graduate high schoolWebZhou, D.-P., Wei, L., & Liu, W.-K. (2012). Tunable graphene Q-switched erbium-doped fiber laser with suppressed self-mode locking effect. Applied Optics, 51(14), 2554 ... how can i stop loving my boyfriend