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http://hdl.handle.net/10397/5796
| Title: | Observation of symmetrical reflection sidebands in a silica suspended-core fiber Bragg grating | Authors: | Tse, MLV Chung, KM Dong, L Thomas, BK Fu, LB Cheng, KCD Lu, C Tam, HY |
Issue Date: | 2-Aug-2010 | Source: | Optics express, 2 Aug. 2010, v. 18, no. 16, p. 17373-17381 | Abstract: | We have observed symmetrical sidebands in reflection from Bragg grating written in a silica suspended-core fiber, which are caused by longitudinal periodic refractive index modulation in the Ge-doped suspended-core fiber with a core diameter of ∼1.3 μm. Our simulation shows that the effective refractive index of the guided mode varied by 0.023% along the fiber with a period of ∼650 μm. The periodic index variation can lead to amplitude modulation of fiber Bragg gratings, which can be studied by observing the spectra of a fiber Bragg grating written in the Ge-doped core. In addition, we have also characterized the temperature and strain responses of the fiber Bragg gratings, and showed that both responses in the suspended-core fiber are 20 to 25% lower than that of a fiber Bragg grating written on a conventional fiber. | Keywords: | Fiber optic components Fiber optic sensors Fibers Germanium Light refraction Refractive index Refractometers Silica |
Publisher: | Optical Society of America | Journal: | Optics express | EISSN: | 1094-4087 | DOI: | 10.1364/OE.18.017373 | Rights: | © 2010 Optical Society of America. This paper was published in Optics express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=oe-18-16-17373. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
| Appears in Collections: | Journal/Magazine Article |
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| Tse_Symmetrical_Reflection_Sidebands.pdf | 968.22 kB | Adobe PDF | View/Open |
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