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Sampled long-period fiber grating filters with narrow stop bands

โœ Scribed by Xinyong Dong; Ningning Pan; Ping Shum; Chi Chiu Chan

Book ID
102517428
Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
177 KB
Volume
51
Category
Article
ISSN
0895-2477

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โœฆ Synopsis

Abstract

Bandโ€stop fiberโ€optic filters based on sampled longโ€period gratings (Sโ€LPGs) have been fabricated and studied experimentally. Comparison between transmission spectra of the proposed Sโ€LPGs and normal LPGs have been carried out. It has been found that Sโ€LPGs possess much narrower stop bands than the corresponding normal LPGs, though their transmission spectra are similar. Experimental results also show that Sโ€LPGs have the same strain and temperature sensitivities as normal LPGs written in the same fiber. ยฉ 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2401โ€“2403, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24627

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## Abstract We present a novel method to fabricate fiber filters based on mechanically induced longโ€period fiber gratings. Transmission spectra can be tailored by external pressures or by introducing a phaseโ€shift. As an example, the filter was used to flatten the spectral output from an Erโ€doped s