Gain and noise figure improvements in a shorter wavelength region of EDFA using a macrobending approach
Gain and noise figure improvements are demonstrated in a shorter wavelength region of a double-pass EDFA using a macrobending approach. The EDF is wound in a small radius to suppress the amplified spontaneous emission at the longer wavelength in order to achieve a high amplification in the shorter w...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Published: |
IOP Publishing
2008
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| Subjects: | |
| Online Access: | http://eprints.um.edu.my/19734/ https://doi.org/10.1134/S1054660X08110297 |
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| Summary: | Gain and noise figure improvements are demonstrated in a shorter wavelength region of a double-pass EDFA using a macrobending approach. The EDF is wound in a small radius to suppress the amplified spontaneous emission at the longer wavelength in order to achieve a high amplification in the shorter wavelength. Gain enhancements of about 12-14 dB are obtained with macrobending at the wavelength region between 1480 and 1530 nm. The macrobending also reduces the noise figure of the EDFA at wavelengths shorter than 1525 nm with a maximum improvement of 25 dB. |
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