Polarization dependence of the mean wavelength of Er-doped superfluorescent fiber sources

Dario Gregor Falquier; Michel J. F. Digonnet; Gordon S. Kino; H. John Shaw

doi:10.1117/12.333771

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21 December 1998 Polarization dependence of the mean wavelength of Er-doped superfluorescent fiber sources

Dario Gregor Falquier, Michel J. F. Digonnet, Gordon S. Kino, H. John Shaw

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Proceedings Volume 3542, Doped Fiber Devices II; (1998) https://doi.org/10.1117/12.333771
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States

Abstract

Changes in the pump polarization state are shown to have a large effect on the mean wavelength of erbium-doped superfluorescent fiber sources due to polarization-dependent gain. This effect causes long-term drift as the fiber birefringence in the source changes over time. By depolarizing the pump, this effect is reduced to under 3 ppm, the noise level of our instrument. A second depolarizer is used to compensate for polarization-dependent transmission of the other source components, namely the WDM coupler and the isolator. The resulting source is insensitive to drifts in the fiber birefringence due to environmental effects.

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Dario Gregor Falquier, Michel J. F. Digonnet, Gordon S. Kino, and H. John Shaw "Polarization dependence of the mean wavelength of Er-doped superfluorescent fiber sources", Proc. SPIE 3542, Doped Fiber Devices II, (21 December 1998); https://doi.org/10.1117/12.333771

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