Analysis of Brillouin frequency shift and longitudinal acoustic wave in a silica optical fiber with a triple-layered structure

Jaewang Yu; Il Bum Kwon; Kyunghwan Oh

doi:10.1109/JLT.2003.815500

Analysis of Brillouin frequency shift and longitudinal acoustic wave in a silica optical fiber with a triple-layered structure

Jaewang Yu, Il Bum Kwon, Kyunghwan Oh

Department of Physics

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We report a thorough analysis on the Brillouin frequency shift as a function of geometrical parameters in a silica optical fiber consisting of triple-layered structure, GeO₂-doped core, P₂O₅, and F co-doped inner cladding, and pure silica outer cladding. General characteristic equations for the Brillouin frequency shift were analytically derived and analyzed for various fiber parameters. In experiments, three-layered optical fibers were fabricated and their Brillouin frequency shifts were measured in the wavelength region of 1.55 μm by a pump-probe technique. The longitudinal acoustic velocity in each layer was found significantly affected by the thermal stress as well as the dopant concentrations. We confirmed both in theory and experiment that the inner cladding of a three-layered optical fiber does provide a new degree of freedom in precise control of the Brillouin frequency shift.

Original language	English
Pages (from-to)	1779-1786
Number of pages	8
Journal	Journal of Lightwave Technology
Volume	21
Issue number	8
DOIs	https://doi.org/10.1109/JLT.2003.815500
Publication status	Published - 2003 Aug

Bibliographical note

Funding Information:
Manuscript received September 6, 2002; revised May 14, 2003. This work was supported in part by the KOSEF through the Ultra-Fast-Fiber-Optic Networks Research Center, the Korean Ministry of Education through the BK21 Program, and the ITRC-CHOAN program.

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1109/JLT.2003.815500

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title = "Analysis of Brillouin frequency shift and longitudinal acoustic wave in a silica optical fiber with a triple-layered structure",

abstract = "We report a thorough analysis on the Brillouin frequency shift as a function of geometrical parameters in a silica optical fiber consisting of triple-layered structure, GeO2-doped core, P2O5, and F co-doped inner cladding, and pure silica outer cladding. General characteristic equations for the Brillouin frequency shift were analytically derived and analyzed for various fiber parameters. In experiments, three-layered optical fibers were fabricated and their Brillouin frequency shifts were measured in the wavelength region of 1.55 μm by a pump-probe technique. The longitudinal acoustic velocity in each layer was found significantly affected by the thermal stress as well as the dopant concentrations. We confirmed both in theory and experiment that the inner cladding of a three-layered optical fiber does provide a new degree of freedom in precise control of the Brillouin frequency shift.",

author = "Jaewang Yu and Kwon, {Il Bum} and Kyunghwan Oh",

note = "Funding Information: Manuscript received September 6, 2002; revised May 14, 2003. This work was supported in part by the KOSEF through the Ultra-Fast-Fiber-Optic Networks Research Center, the Korean Ministry of Education through the BK21 Program, and the ITRC-CHOAN program.",

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AU - Yu, Jaewang

AU - Kwon, Il Bum

AU - Oh, Kyunghwan

N1 - Funding Information: Manuscript received September 6, 2002; revised May 14, 2003. This work was supported in part by the KOSEF through the Ultra-Fast-Fiber-Optic Networks Research Center, the Korean Ministry of Education through the BK21 Program, and the ITRC-CHOAN program.

PY - 2003/8

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N2 - We report a thorough analysis on the Brillouin frequency shift as a function of geometrical parameters in a silica optical fiber consisting of triple-layered structure, GeO2-doped core, P2O5, and F co-doped inner cladding, and pure silica outer cladding. General characteristic equations for the Brillouin frequency shift were analytically derived and analyzed for various fiber parameters. In experiments, three-layered optical fibers were fabricated and their Brillouin frequency shifts were measured in the wavelength region of 1.55 μm by a pump-probe technique. The longitudinal acoustic velocity in each layer was found significantly affected by the thermal stress as well as the dopant concentrations. We confirmed both in theory and experiment that the inner cladding of a three-layered optical fiber does provide a new degree of freedom in precise control of the Brillouin frequency shift.

AB - We report a thorough analysis on the Brillouin frequency shift as a function of geometrical parameters in a silica optical fiber consisting of triple-layered structure, GeO2-doped core, P2O5, and F co-doped inner cladding, and pure silica outer cladding. General characteristic equations for the Brillouin frequency shift were analytically derived and analyzed for various fiber parameters. In experiments, three-layered optical fibers were fabricated and their Brillouin frequency shifts were measured in the wavelength region of 1.55 μm by a pump-probe technique. The longitudinal acoustic velocity in each layer was found significantly affected by the thermal stress as well as the dopant concentrations. We confirmed both in theory and experiment that the inner cladding of a three-layered optical fiber does provide a new degree of freedom in precise control of the Brillouin frequency shift.

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Analysis of Brillouin frequency shift and longitudinal acoustic wave in a silica optical fiber with a triple-layered structure

Abstract

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