Effective Verdet constant in a terbium-doped-core phosphate fiber

Effective Verdet constant in a terbium-doped-core phosphate fiber

The concept of an effective Verdet constant is proposed and experimentally validated. The effective Verdet constant of light propagation in a fiber includes contributions from the materials in both the core and the cladding. It is measured in a 25 wt.% terbium-doped-core phosphate fiber to be -6.2+/...

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Veröffentlicht in:Optics Letters 2009-06, Vol.34 (11), p.1699-1701
Hauptverfasser: SUN, L, JIANG, S, ZUEGEL, J. D, MARCIANTE, J. R
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Fiber optics
Fundamental areas of phenomenology (including applications)
Optics
Physics
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Zusammenfassung:The concept of an effective Verdet constant is proposed and experimentally validated. The effective Verdet constant of light propagation in a fiber includes contributions from the materials in both the core and the cladding. It is measured in a 25 wt.% terbium-doped-core phosphate fiber to be -6.2+/-0.4 rad/(Tm) at 1,053 nm, which is six times larger than silica fiber. The result agrees well with Faraday rotation theory in optical fiber.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.34.001699