Results 11 to 20 of about 292,869 (302)
Tunable Single-Longitudinal-Mode High-Power Fiber Laser
International Journal of Optics, 2012 We report a novel CW tunable high-power single-longitudinal-mode fiber laser with a linewidth of ∼9 MHz. A tunable fiber Bragg grating provided wavelength selection over a 10 nm range. An all-fiber Fabry-Perot filter was used to increase the longitudinal
Jonas K. Valiunas, Gautam Das
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Wavelength-tunable single longitudinal mode fiber optical parametric oscillator
Optics Express, 2017 We demonstrate a ring cavity single longitudinal mode fiber optical parametric oscillator using a passive sub-ring cavity and an unpumped erbium doped fiber configured with an external fiber mirror for single mode selection. The unpumped erbium doped fiber uses its saturable absorption characteristic to generate a self-induced narrowband filter when ...
L. T. Lim +2 more
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Applied SciencesSingle-longitudinal mode lasers are widely used as light sources in coherent lidars due to their narrow linewidth and long coherence length. However, we observed spontaneous frequency drift in a single-longitudinal mode laser, accompanied by the ...
Xiaojie Chen +5 more
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An Injection-Locked Single-Longitudinal-Mode Fiber Ring Laser With Cylindrical Vector Beam Emission [PDF]
IEEE Photonics Journal, 2017 We demonstrate a fiber ring laser with narrow bandwidth single-longitudinal-mode cylindrical vector beam (CVB) output at C-band wavelength range for the first time to the best of our knowledge.
Hongdan Wan +6 more
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How to control the laser emission in single longitudinal mode [PDF]
Optica Pura y Aplicada, 2015 Producción Científica In the pictures we show the interference patterns obtained with a solid Fabry-Perot etalon with the 532 nm radiation emitted by a Nd:YAG laser. In Fig. A using a seed laser, this means, only one longitudinal mode. In Fig. B without the seed laser, this is multimode emission.
González Fernández, Verónica +6 more
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Frontiers in Physics, 2023 A single-longitudinal-mode (SLM) thulium-doped fiber laser, based on an eye-shaped passive dual-ring filter, is designed and constructed. The eye-shaped passive compound cavity consisting of four couplers is used to increase the longitudinal mode spacing,
Xiangdong Wang +12 more
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Crystals, 2021 We present a design methodology for hybrid lasers to realise mode-hop free operation by controlling the cavity mode spacing. In this study, a compact hybrid photonic crystal laser (H-PhCL) was employed which allowed a reduction of the Fabry–Perot length ...
Praveen K. J. Singaravelu +5 more
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Single longitudinal mode fiber ring laser [PDF]
Optics & Laser Technology, 2018 In this work, a dual-wavelength fiber ring laser working on the SLM regime is proposed and experimentally verified. A proof-of-concept device has been tested employing high precision small-sized SLM fiber lasers to complement the feedback produced by a passive FBG.
Rodríguez Cobo, Luis +4 more
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AIP Advances, 2023 The following typical longitudinal mode phenomena occur in bulk semiconductor lasers: single-mode or multimode operation for longitudinal modes, longitudinal mode suppression except for a dominant mode, asymmetry of the spectral profile of longitudinal ...
Toshiaki Mizukami
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Single Longitudinal Mode and Widely Tunable Er:Y2O3 Ceramic Laser at ∼ 2.7 μm
IEEE Photonics Journal, 2023 We report on single-longitudinal-mode and tunable operation of an Er:Y2O3 ceramic laser at ∼2.7 μm using intracavity Fabry-Perot etalons combined with a birefringent filter. The laser is pumped with a high brightness, narrow linewidth diode
Manman Ding +6 more
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