Abstract
A new type of flat broadband Erbium-doped fiber (EDF) amplified spontaneous emission source is proposed and demonstrated. The intensity-dependent loss induced by a symmetric nonlinear optical loop mirror is used to flatten the spectrum and broaden the bandwidth. The 3 dB bandwidth over 50 nm has been obtained with 15 m EDF and 100 mW pump power based on the single-pass forward pump configuration. This spectrum flattening and broadening method is quite effective over a large range both in pump power and EDF length.
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Tian, J.J., Yao, Y., Sun, Y.X. et al. Flat broadband erbium-doped fiber ASE source based on symmetric nonlinear optical loop mirror. Laser Phys. 20, 1760–1766 (2010). https://doi.org/10.1134/S1054660X10150223
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DOI: https://doi.org/10.1134/S1054660X10150223