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Compact all-fiber optical Faraday components using 65-wt%-terbium-doped fiber with a record Verdet constant of -32 rad/(Tm)

Optics express, 2010-06, Vol.18 (12), p.12191-12196 [Peer Reviewed Journal]

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Title:
Compact all-fiber optical Faraday components using 65-wt%-terbium-doped fiber with a record Verdet constant of -32 rad/(Tm)
Author: Sun, L ; Jiang, S ; Marciante, J R
Is Part Of: Optics express, 2010-06, Vol.18 (12), p.12191-12196
Description: A compact all-fiber Faraday isolator and a Faraday mirror are demonstrated. At the core of each of these components is an all-fiber Faraday rotator made of a 4-cm-long, 65-wt%-terbium-doped silicate fiber. The effective Verdet constant of the terbium-doped fiber is measured to be -32 rad/(Tm), which is 27 x larger than that of silica fiber. This effective Verdet constant is the largest value measured to date in any fiber and is 83% of the Verdet constant of commercially available crystal used in bulk optics-based isolators. Combining the all-fiber Faraday rotator with fiber polarizers results in a fully fusion spliced all-fiber isolator whose isolation is measured to be 19 dB. Combining the all-fiber Faraday rotator with a fiber Bragg grating results in an all-fiber Faraday mirror that rotates the polarization state of the reflected light by 88 +/- 4 degrees .
Publisher: United States
Language: English
Identifier: ISSN: 1094-4087
EISSN: 1094-4087
DOI: 10.1364/OE.18.012191
PMID: 20588343
Source: GFMER Free Medical Journals
Alma/SFX Local Collection
ROAD: Directory of Open Access Scholarly Resources
DOAJ Directory of Open Access Journals

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