𝔖 Bobbio Scriptorium
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Polarized Superfluorescent Fiber Sources

✍ Scribed by D.G. Falquier; J.L. Wagener; M.J.F. Digonnet; H.J. Shaw

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
239 KB
Volume
4
Category
Article
ISSN
1068-5200

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✦ Synopsis

We report the theoretical and experimental performance of new, linearly Ε½ . polarized superfluorescent fiber sources SFS . Internal polarization is produced either by splicing a fiber polarizer at an optimum location along a standard Er-doped SFS or by using a single-polarization Er-doped fiber. Numerical simulations predict that when operated in the backward, forward, or double-pass configuration, these SFSs produce nearly twice the power in the desired linear polarization as a standard, unpolarized SFS. This efficiency figure depends weakly on the polarizer location and extinction ratio, but Ε½ . requires a low polarizer insertion loss -0.5 dB . Laboratory prototypes of a backward and a forward polarized SFS are presented that exhibit a power output in the desired linear polarization about 1.75 times larger than that of an unpolarized SFS, and an extinction ratio in excess of 17.5 dB.

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