Measurement of fiber non-linearity based on four-wave mixing with an ASE source
A new four-wave mixing scheme to practically measure the non-linear coefficient of fibers is introduced. A single erbium-doped fiber amplifier is used to create the two wavelengths for the four-wave mixing inputs, which are pre-spectrally sliced via fiber Bragg grating filters. The proposed scheme a...
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| Main Authors: | , , , |
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| 格式: | Article |
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Elsevier
2016
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| 主題: | |
| 在線閱讀: | http://eprints.um.edu.my/17738/ http://dx.doi.org/10.1016/j.yofte.2016.09.002 |
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| 總結: | A new four-wave mixing scheme to practically measure the non-linear coefficient of fibers is introduced. A single erbium-doped fiber amplifier is used to create the two wavelengths for the four-wave mixing inputs, which are pre-spectrally sliced via fiber Bragg grating filters. The proposed scheme avoids the Brillouin backscattering, rendering this a more accurate method to determine fiber nonlinearities than conventional coherent FWM systems. Furthermore, the generated FWM seed beams are pure and ultra-narrow, and can therefore be treated as coherent light. Consequently, accurate degeneracy factor can also be taken into consideration. |
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