Graphene q-switched tunable fiber laser
WebBroadband light therapy, or BBL, is a non-invasive laser treatment that improves and treats many skin conditions related to aging, sun damage and heredity. This laser uses light energy to deliver pulses of light into the upper levels of the skin to stimulate collagen production, reduce melanin that is responsible for pigmented lesions (freckles ... WebMar 10, 2015 · The tunable laser was based on a VBG, graphene SA, and three mirrors system. Tunable operation was achieved by rotating the working angle of the VBG and the high reflectivity end mirror, meanwhile the Q-switched operation was obtained by inserting and carefully aligning the graphene SA.
Graphene q-switched tunable fiber laser
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WebJun 1, 2016 · We demonstrated a wavelength switchable graphene Q-switched fiber laser based on the cascaded FBGs. The two lasing peaks are located at 1542.9 nm or 1543.7 nm in optical communication band, and output characteristics, like output power, pulse energy, repetition rate, and pulse width with pump power was characterized. 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 …
WebJan 12, 2016 · This behavior has been studied in the context of high power, wideband passively Q-switched lasers, for which graphene has many favorable properties 52. Figure 1 Graphene excitable fiber laser. WebApr 3, 2015 · We reported that the photonic crystal fiber (PCF) filled with TI:Bi2Te3 nanosheets solution could act as an effective saturable absorber (SA). Employing this TI-PCF SA device; we constructed an ytterbium-doped all-fiber laser oscillator and achieved the evanescent wave mode-locking operation. Due to the large cavity dispersion; the …
WebAbstract: 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 ... 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 1, 2024 · In reports, the wavelength tuning PQFL based on 2D materials has been realized by means of the tunable filter constructed by the birefringent plate. For example, the tuning wavelength of Q-switched pulses from 1522.5 to 1555 nm, 1510.9 to 1589.1 nm, and 1519.6 to 1567.1 nm have been reported in Er-doped fiber laser based on the …
WebA passively Q-switched tunable Yb-doped double-clad fiber laser is demonstrated with graphene epitaxially grown on SiC. The spectral tuning of the Q-switched fiber laser is implemented by rotating a quartz plate filter inside the cavity. The central wavelength of the fiber laser can be continuously tuned from 1038.54 to 1056.22 nm. The maximum pulse … flushable wipes septic system problemsWebNov 2, 2011 · We demonstrated a wide-band tunable passively Q-switched fiber laser by using a graphene-based saturable absorber (SA). The graphene SA was prepared through the optically driven deposition method. The Q-switched operation was initiated with a low pump threshold of about 33 mW. green film formed on copper over timeWebAbstract. 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 … flushable wipes really clean the poop germsWebA stable Q-switched erbium-doped fiber laser with a tunable range from 1522 nm to 1568 nm is demonstrated experimentally. Self-mode locking effect in a wideband tunable graphene-based passively Q-switched erbium-doped fiber … flushable wipes septic systemWebApr 1, 2024 · A tunable Q-switched EDFL with a tuning range from 1553 to 1569 nm was achieved by bending SIMF. When the Q-switched fiber laser operated at 1560 nm, a repetition rate of 84 kHz was obtained, together with pulse width and pulse energy of 1. 47 μ s and 104.7 nJ under the maximum pump power of 800 mW. Our results show that the … flushable wipes plumbing problemsWebFeb 15, 2011 · We demonstrate a wideband-tunable Q-switched fiber laser exploiting a graphene saturable absorber. We get ∼ 2 μ s pulses, tunable between 1522 and 1555 nm with up to ∼ 40 nJ energy. This is a simple and low-cost light source for metrology, environmental sensing, and biomedical diagnostics. flushable wipes organic babyganicsWebOne 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]. flushable wipes problem australia