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Wavelength-Tunable Erbium-Doped Fiber Ring Laser Employing an Acousto-Optic Filter

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4 Author(s)
Wei Yang ; Dept. of Appl. Phys., Tianjin Univ., Tianjin, China ; Ying Liu ; Lifeng Xiao ; Zhaoxiang Yang

A single-stage polarization-independent acousto-optic tunable filter is used as the tuning component in an erbium-doped fiber ring laser, and continuous wavelength tuning is achieved. The frequency shift and its compensation in a ring laser cavity is analyzed in detail, the spectrum width caused by the frequency shift is shown to be far less than the full-width at half-maximum. This ring laser is theoretically analyzed and experimentally demonstrated, and a tuning range of 38 nm, starting from 1524.7 to 1562.4 nm, is observed.

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Lightwave Technology, Journal of  (Volume:28 ,  Issue: 1 )