Effect of enhanced Rayleigh scattering on the random fiber laser efficiency

Yao, Can; Brès, Camille‐Sophie; Thévenaz, Luc

doi:10.1364/ssl.2018.st4d.4

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2021

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“…However, owing to the longer fiber cavity and homogeneous broadening influence [12], achieving a stable multi-wavelength operation with single-longitudinal-mode (SLM) output is difficult. Therefore, the Rayleigh backscattering (RB) effect [13], EDF-based saturable absorber (SA) [14], MZI scheme [15], optical injection technique [16] and compoundfiber-ring structure [17] have been investigated to suppress the multi-longitudinal-mode (MLM) oscillation.…”

Section: Introductionmentioning

confidence: 99%

A single-mode erbium laser with switchable single- and dual-wavelength operation

et al. 2021

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In the paper, we study a single-longitudinal-mode (SLM) erbium-doped fiber (EDF) ring laser with a switchable single-and dual-wavelength output in C-band scale simultaneously. When a 1×4 wavelength-division-multiplexing (WDM) multiplexer is placed inside the ring cavity, four tunable single wavelengths and five sets of dual-wavelength with several mode-spacing can be accomplished, respectively. To achieve the selective and stable output characteristic, the suitable adjustment of cavity and birefringent losses are operated. Additionally, the laser characteristics of output wavelength, detected power, and optical signal to noise ratio (OSNR) have also been discussed.

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