Number | Name | Date | Kind |
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4723824 | Shaw et al. | Feb 1988 | |
4883335 | Alferness et al. | Nov 1989 | |
4952017 | Henry et al. | Aug 1990 |
Entry |
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Masuda et al., "High Gain Two Stage Amplification with Erbium-Doped Fiber Amplifier", Electronic Letters, 10th May 1990, vol. 26, No. 10, pp. 661-662. |