Abstract
We propose and experimentally investigate a stable and tunable dual-wavelength erbium-doped fiber (EDF) dual-ring laser scheme. Here, two tunable bandpass filters (TBFs) are used inside the dual-ring gain cavity to generate dual-wavelength lasing. And, due to the gain competition of the EDF gain cavity, the mode-spacing (Δλs) of lasing dual-wavelength will be limited at different operating wavelengths. Hence, the minimum and maximum mode-spacing in the proposed EDF laser scheme are 0.75 and 15.35 nm in C-band range. Besides, the output performances of proposed fiber laser have also been studied and analyzed.
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Yeh, C.H., Chow, C.W., Cheng, B.C. et al. Simple erbium-doped dual-ring fiber laser configuration for stable and tunable dual-wavelength output. Laser Phys. 21, 1645–1649 (2011). https://doi.org/10.1134/S1054660X11170300
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DOI: https://doi.org/10.1134/S1054660X11170300