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Widely Tunable L-Band Brillouin Fiber Laser Incorporating a Bismuth-Based Erbium-Doped Fiber

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Executive Summary

A widely tunable single-wavelength Brillouin Fiber Laser (BFL) incorporating a Bismuth-based Erbium-Doped Fiber (Bi-EDF) is proposed. The 52 cm-long highly erbium-doped Bi-EDF provides broadband gain extending from the C-band (1525-1565 nm) to the L-band (1565-1625 nm). In experiment, the BFL operates in a range from 1555 nm to 1632 nm, which is the widest to the best of the authors' knowledge. The proposed BFL is an attractive narrow linewidth laser source on the L-band, which has many potential applications, such as in slow light, coherent communication, and interferometric sensing.

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