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A selectable single-frequency erbium fiber laser with septuple-ring apparatus for narrow linewidth and uniform power output.

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Bibliographic Details
Title: A selectable single-frequency erbium fiber laser with septuple-ring apparatus for narrow linewidth and uniform power output.
Authors: Lin, Yu-Han1 (AUTHOR), Chen, Lan-Yin1 (AUTHOR), Lai, Yu-Ting1 (AUTHOR), Yeh, Chien-Hung1 (AUTHOR) yehch@fcu.edu.tw, Chen, Jing-Heng1 (AUTHOR), Chow, Chi-Wai2 (AUTHOR)
Source: Optics & Laser Technology. Apr2024, Vol. 171, pN.PAG-N.PAG. 1p.
Subjects: Électricité de France SA, Fiber lasers, Erbium, Signal-to-noise ratio
Abstract: • A septuple-ring is demonstrated to acquire tunable and stable single-longitudinal-mode (SLM) output. • The wavelength-tuning scale can be increased from S- to L-bands. • All obtained laser linewidths are below kHz in the available bandwidth. • The proposed EDF laser also reaches a uniform power output. A single-longitudinal-mode (SLM) erbium-doped fiber laser (EDFL) with septuple-ring is demonstrated to acquire tunable and stable wavelength output. The demonstrated septuple-ring design not only can result in mode-filter operation to diminish the dense longitudinal-mode oscillations, but also can reach sub-kHz linewidth. The presented fiber laser also can extend the tuning bandwidth from 1512.0 to 1572.0 nm based on C-band gain-medium and lead to a uniform power output range within 0.36 dB power fluctuation. Furthermore, the obtained output linewidth, output power (P out), output stability and optical signal to noise ratio (OSNR) of the EDFL are also executed and discussed. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:• A septuple-ring is demonstrated to acquire tunable and stable single-longitudinal-mode (SLM) output. • The wavelength-tuning scale can be increased from S- to L-bands. • All obtained laser linewidths are below kHz in the available bandwidth. • The proposed EDF laser also reaches a uniform power output. A single-longitudinal-mode (SLM) erbium-doped fiber laser (EDFL) with septuple-ring is demonstrated to acquire tunable and stable wavelength output. The demonstrated septuple-ring design not only can result in mode-filter operation to diminish the dense longitudinal-mode oscillations, but also can reach sub-kHz linewidth. The presented fiber laser also can extend the tuning bandwidth from 1512.0 to 1572.0 nm based on C-band gain-medium and lead to a uniform power output range within 0.36 dB power fluctuation. Furthermore, the obtained output linewidth, output power (P out), output stability and optical signal to noise ratio (OSNR) of the EDFL are also executed and discussed. [ABSTRACT FROM AUTHOR]
ISSN:00303992
DOI:10.1016/j.optlastec.2023.110345