Results 21 to 30 of about 64,947 (285)
Random fiber Bragg grating Raman fiber laser
Optics Letters, 2014 We demonstrate for the first time to our knowledge a Raman random fiber laser (RRFL) based on a long random fiber Bragg grating (RFBG-RRFL). Unlike other recently demonstrated random fiber lasers that rely on incoherent Rayleigh scattering feedback, the present scheme uses randomly distributed phase shifts inside a fiber-meter long Bragg grating as a ...
Mathieu, Gagné, Raman, Kashyap
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Numerical Study of Efficient Tm-Doped Zinc-Tellurite Fiber Lasers at 2300 nm
Fibers, 2023 Fiber laser sources operating near 2300 nm in the atmospheric transparency window are interesting for different applications, such as remote sensing, lidars, and others. The use of Tm-doped fiber lasers based on tellurite fibers is highly promising.
Elena A. Anashkina, Alexey V. Andrianov
doaj +1 more source
Ultralow-threshold microcavity Raman laser on a microelectronic chip [PDF]
, 2004 Using ultrahigh-Q toroid microcavities on a chip, we demonstrate a monolithic microcavity Raman laser. Cavity photon lifetimes in excess of 100 ns combined with mode volumes typically of less than 1000 µm^3 significantly reduce the threshold for ...
Armani, D. K. +3 more
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High-Power Continuous-Wave Directly-Diode-Pumped Fiber Raman Lasers
Applied Sciences, 2015 We describe novel fiber Raman lasers pumped directly by spectrally combined high power multimode laser diodes at 975 nm and emitting at 1019 nm. With a commercial multimode graded-index fiber, we reached 20 W of laser output power with a record slope ...
Tianfu Yao +3 more
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SRS-Induced Spatial-Spectral Distortion and Its Mitigation Strategy in High-Power Fiber Amplifiers
IEEE Photonics Journal, 2022 The spatial-spectral evolution properties of laser beam in the presence of stimulated Raman scattering (SRS) effect have been studied in large mode area (LMA) fiber.
Chun Zhang +7 more
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Time-Encoded Raman: Fiber-based, hyperspectral, broadband stimulated Raman microscopy [PDF]
, 2014 Raman sensing and Raman microscopy are amongst the most specific optical technologies to identify the chemical compounds of unknown samples, and to enable label-free biomedical imaging with molecular contrast.
Eibl, Matthias +4 more
core +2 more sources
Light: Science & Applications, 2020 Raman-scattering microscopy: Fiber laser reduces the bulk An extremely stable fiber laser makes the high-resolution imaging technique of coherent Raman scattering (CRS) microscopy more practical for use in hospitals. CRS employs two pulsed laser beams to
Cihang Kong +9 more
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A Narrow-Linewidth Linearly Polarized 1018-nm Fiber Source for Pumping Diamond Raman Laser
Frontiers in Physics, 2021 A 7.8-GHz linewidth ytterbium-doped fiber (YDF) laser with an output power of 75 W at 1,018 nm is demonstrated based on narrow-bandwidth fiber Bragg gratings.
Xuezong Yang +7 more
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Random raman fiber laser based on a twin-core fiber with FBGs inscribed by femtosecond radiation [PDF]
, 2019 Narrowband Raman lasing in a polarization-maintaining two-core fiber (TCF) is demonstrated. Femtosecond point-by-point inscription of fiber Bragg gratings (FBGs) in individual cores produces a half-open cavity with random distributed feedback.
Abdullina, S. R. +7 more
core +1 more source
Generation of Narrow Modes in Random Raman Fiber Laser Based on Multimode Fiber
Photonics, 2023 We present a new design of a random Raman fiber laser based on a graded-index multimode fiber as the media composing the cavity that allows the generation of narrow spectral lines.
Ilya D. Vatnik +2 more
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