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Robust 1.69 μm Random Fiber Laser With High Spectral Purity Based on Ordinary Fibers
Journal of Lightwave Technology, 2022Laser emissions at 1.6–1.7 μm band have captured considerable attention in recent years. However, limited by the available emission spectrum of typical rare-earth-ion doped gain fibers, it is extremely difficult to realize highly stable laser output in ...
R. Ma +4 more
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Random Laser with Erbium-Doped Fiber and fs-Laser Introduced Random Fiber Grating
2018 Asia Communications and Photonics Conference (ACP), 2018A novel half cavity random fiber laser is demonstrated by using erbium-doped fiber as gain media, a fs- laser introduced random fiber grating to provide random distributed feedback and a strong chirped-fiber Bragg grating to form half-cavity configuration. A relatively low threshold power of 33 mW is achieved for 980 nm pump.
Jingxuan Song +4 more
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Thulium-doped fiber random laser using random fiber grating for random feedback
2021 19th International Conference on Optical Communications and Networks (ICOCN), 2021We report on a Thulium-doped fiber random laser which uses a random fiber grating for distributed random feedback. The random fiber grating fabricated by using a femtosecond laser provides enhanced Rayleigh scattering in random feedback fiber so the total fiber length of the Thulium-doped fiber random laser is greatly reduced. A high-reflectivity fiber
Decai Zhu, Yaozong Hu, Xinyong Dong
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Temporal optical rogue waves in high power short-cavity Yb-doped random fiber laser
Symposium on Novel Photoelectronic Detection Technology and Application, 2022A high power short-cavity random fiber laser employing the gain mechanism of the Yb-doped fiber and the half-open cavity structure and the temporal optical rogue waves (RWs) behavior are observed and investigated in the paper.
Xiaoliang Wang +5 more
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Applied Physics Letters, 2004
We demonstrate that in fiber-coupled random laser, the threshold energy is twofold reduced and the slope efficiency is fivefold increased when the tip of the fiber is relocated from the surface to the depth of the powder volume. High absorption efficiency, 85%, and high conversion efficiency of population inversion to stimulated emission, 90%, make ...
Mikhail A. Noginov +2 more
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We demonstrate that in fiber-coupled random laser, the threshold energy is twofold reduced and the slope efficiency is fivefold increased when the tip of the fiber is relocated from the surface to the depth of the powder volume. High absorption efficiency, 85%, and high conversion efficiency of population inversion to stimulated emission, 90%, make ...
Mikhail A. Noginov +2 more
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Optics Letters, 2022
Frequency fluctuation is a major problem in high-precision metrology as real-time optical frequency measurement is not available with commercial photodetectors; alternatively, frequency-stabilized lasers as a reference are also not accessible in most ...
Haiyang Wang +5 more
semanticscholar +1 more source
Frequency fluctuation is a major problem in high-precision metrology as real-time optical frequency measurement is not available with commercial photodetectors; alternatively, frequency-stabilized lasers as a reference are also not accessible in most ...
Haiyang Wang +5 more
semanticscholar +1 more source
Physical Review A, 2011
An optical fiber is treated as a natural one-dimensional random system where lasing is possible due to a combination of Rayleigh scattering by refractive index inhomogeneities and distributed amplification through the Raman effect. We present such a random fiber laser that is tunable over a broad wavelength range with uniquely flat output power and ...
Babin, S. A. +4 more
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An optical fiber is treated as a natural one-dimensional random system where lasing is possible due to a combination of Rayleigh scattering by refractive index inhomogeneities and distributed amplification through the Raman effect. We present such a random fiber laser that is tunable over a broad wavelength range with uniquely flat output power and ...
Babin, S. A. +4 more
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High‐Power Multimode Random Fiber Laser for Speckle‐Free Imaging
Annals of Physics, 2021New light sources with low spatial coherence and high brightness are crucial for high‐quality imaging. In this paper, such a light source is reported, which is formed by combining random lasing used as seed light with a multimode fiber (MMF) mediated ...
S. Wang +7 more
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Conference on Lasers and Electro-Optics 2010, 2010
We present the results of the experimental and theoretical studies of the random laser based on an Er/Ge co-doped single-mode fiber with randomly spaced Bragg gratings.
V. Freilikher +4 more
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We present the results of the experimental and theoretical studies of the random laser based on an Er/Ge co-doped single-mode fiber with randomly spaced Bragg gratings.
V. Freilikher +4 more
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Random Raman Supercontinuum fiber laser
Optica Advanced Photonics Congress 2022, 2022We demonstrate the generation of a supercontinuum from modulation instability and Raman self-frequency shift in a distributed feedback random Raman fiber laser. This laser has the potential for random number generation at Tbps speeds.
Frédéric Monet, Raman Kashyap
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