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Flat broadband erbium-doped fiber ASE source based on symmetric nonlinear optical loop mirror |
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| Authors: | J. J. Tian Y. Yao Y. X. Sun X. C. Xu X. H. Zhao D. Y. Chen |
| Affiliation: | 1.Department of Electronic and Information Engineering, Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen, Guangdong Province,China;2.Microelectronics Research Center,University of Texas at Austin,Austin,USA;3.National Key Laboratory of Tunable Laser Technology,Harbin Institute of Technology,Harbin, Heilongjiang Province,China |
| 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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