Search Results - Shuangchen Ruan
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Isolator-Free Unidirectional Multiwavelength Tm-Doped Double-Clad Fiber Laser Based on Multimode Interference Effect
Published 2017-01-01Get full textIn this paper, an isolator-free unidirectional multiwavelength Tm-doped fiber laser is experimentally investigated. The isolator-free unidirectional operation of the laser is realized by the construction of a type of theta cavity. A single-mode-multimode-single-mode fiber structure served as a multi...
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Single-Wavelength and Multiwavelength Q-Switched Fiber Laser Using Fe3O4 Nanoparticles
Published 2017-01-01Get full textWe demonstrate a simple Fe<sub>3</sub>O<sub>4</sub> nanoparticles (FONPs) based Q-switched fiber laser that is able to generate stable nanosecond pulses with single-wavelength or multiwavelength regimes. In the single-wavelength lasing scheme, the fiber laser generates 613-ns...
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Multiwavelength Thulium-Doped Fiber Laser Using a Micro Fiber-Optic Fabry–Perot Interferometer
Published 2018-01-01Get full textA compact, all-fiberized multiwavelength thulium-doped fiber laser based on a micro fiber-optic Fabry–Perot interferometer (FPI) and a nonlinear optical loop mirror (NOLM) has been demonstrated. The FPI with a free spectral range of ∼26 nm was used as an effective wavelength se...
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Repetition-Rate-Switchable and Self-Mode-Locked Pulses Generation From a Gain-Switched Thulium-Doped Fiber Laser and Their Amplification Properties
Published 2017-01-01Get full textWe report on repetition-rate-switchable and self-mode-locked pulses generation from a gain-switched thulium-doped fiber laser. Stable pulse trains were gain-switched by a home-made, pulsed Erbium/Ytterbium codoped fiber amplifier. The pulse repetition rate (PRR) of stable output pulse trains can be...
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Supercontinuum Generation by Using a Highly Germania-Doped Fiber With a High-Power Proportion Beyond 2400 nm
Published 2019-01-01Get full textA high-power all-fiber supercontinuum (SC) source in a highly germania-doped fiber (GDF) pumped by a picosecond thulium-doped master oscillator power amplifier (MOPA) system is presented. By further optimizing the length of the GDF, the long-wavelength edge of the wideband flat SC can be broadened t...
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Dual-Operation Regime Thulium-Doped Fiber Laser and Its Applications in Cascaded Raman Light and Supercontinuum Generation
Published 2018-01-01Get full textWe report on a passively mode-locked thulium-doped fiber laser (TDFL) with dual operation regimes and applications in cascaded Raman light and supercontinuum generation. The mode-locking is initiated by using a semiconductor saturable absorber mirror (SESAM) and can operate at both fundamental mode-...
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Mid-infrared Spectral Intensity Enhanced Supercontinuum Generation Based on Nanosecond Thulium-Doped Fiber Laser
Published 2016-01-01Get full textWe report a mid-infrared (MIR) spectral intensity-enhanced supercontinuum (SC) generation from a ZrF<sub>4</sub>-BaF <sub>2</sub>-LaF<sub>3</sub>-AlF<sub>3</sub>-NaF fiber pumped by a nanosecond thulium-doped fiber laser. The spectral region covered fr...
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1/1.5 μm Synchronized Dual-Band Mode-Locked Fiber Laser
Published 2021-01-01Get full textA 1/1.5 μm dual-band mode-locked fiber laser is experimentally demonstrated. The laser is based upon an architecture in which the 1 μm and the 1.5 μm signals are generated in independent cavities that share the identical active fiber. The mode-locking of t...
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High-Power Femtosecond Pulse Generation From an All-Fiber Er-Doped Chirped Pulse Amplification System
Published 2020-01-01Get full textWe demonstrate a compact all-fiber Er-doped chirped pulse amplification (CPA) system that can produce ∼344 fs pulses with an average power of up to 1.02 W and a repetition rate of 40.6 MHz at 1.56 μm (corresponding to an energy of 25.1 nJ). The pulse compressor in the CPA syste...
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Tunable Passively-Synchronized 1-μm Q-Switched and 1.5-μm Gain-Switched Dual-Wavelength Fiber Laser Based on an Er/Yb Codoped Fiber
Published 2017-01-01Get full textA wavelength-tunable passively-synchronized 1-μm Q-switched and 1.5-μm gain-switched dual-wavelength pulsed fiber laser has been demonstrated with a single gain fiber for the first time to our knowledge. The realized dual-wavelength co-oscillation is based on a dual ring-cavity...
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Q-Switched Fiber Laser Using a Fiber-Tip-Integrated TI Saturable Absorption Mirror
Published 2016-01-01Get full textA wideband-tunable Q-switched fiber laser with a high-reflective topological insulator saturable absorber mirror (TISAM) was proposed and experimentally demonstrated. The proposed TISAM is composed of Sb <sub>2</sub>Te <sub>3</sub> and gold films deposited over the fiber tip,...
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