Number | Name | Date | Kind |
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4737960 | Tsang | Apr 1988 | |
4928285 | Kushibe et al. | May 1990 |
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J. P. van der Ziel, et al., "Single Longitudinal Mode Operation of Er-Doped 1.5 .mu.m InGaAsP Lasers", Appl. Phys. Lett. 50(19), May 11, 87, p. 1313. |
W. T. Tsang et al., "Observation of Enhanced Single Longitudinal Mode Operation in 1.5 .mu.m GaInAsP Erbium-Doped Semiconductor Injection Lasers", Appl. Phys. Lett. 49(25), 22 Dec. 1986, p. 1686. |