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Erbium Doped Fiber Amplifier Gain Flattening Using Long-Period Fiber Gratings |
| CHEN Gen-xiang;JIAN Shui-sheng;LI Tang-jun;LIU Chun-ning;XIE Zeng-hua |
| Institute of Lightwave Technology Northern Jiaotong University, Beijing 100044 |
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| Cite this article: |
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CHEN Gen-xiang, JIAN Shui-sheng, LI Tang-jun et al 1999 Chin. Phys. Lett. 16 513-515 |
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Abstract Based on theoretical and experimental studies on the optical properties of long-period gratings (LPGs), an erbium doped fiber amplifier (EDFA) gain equalizer was fabricated by writing three long period gratings with designed properties in hydrogen-loaded standard singlemode fibers. The LPGs were written by a KrF excimer laser at 248nm with amplitude masks. The gain variation of ±3dB in the EDFA is reduced to ±0.3dB with a bandwidth of 30nm and the total insertion loss of the device is less than 0.3dB.
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| Keywords:
42.81.Dp
42.81.Wg
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Published: 01 July 1999
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| PACS: |
42.81.Dp
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(Propagation, scattering, and losses; solitons)
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42.81.Wg
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(Other fiber-optical devices)
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