High-temperature sensitivity of long-period gratings in B-Ge codoped fiber

Xuewen Shu; Thomas D.P. Allsop; Bashir  Gwandu; Lin Zhang; Ian Bennion

doi:10.1109/68.935814

High-temperature sensitivity of long-period gratings in B-Ge codoped fiber

Xuewen Shu^*, Thomas D.P. Allsop, Bashir Gwandu, Lin Zhang, Ian Bennion

^*Corresponding author for this work

Aston Institute of Photonic Technologies (AiPT)

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

Abstract

We report an investigation of thermal properties of long-period fiber gratings (LPFGs) of various periods fabricated in the conventional B-Ge codoped fiber. It has been found that the temperature sensitivity of the LPFGs produced in the B-Ge fiber can be significantly enhanced as compared with the standard telecom fiber. A total of 27.5-nm spectral shift was achieved from only 10 °C change in temperature for an LPFG with 240-μm period, demonstrating a first ever reported high sensitivity of 2.75 nm/°C. Such an LPFG may lead to high-efficiency and low-cost thermal/electrical tunable loss filters or sensors with extremely high-temperature resolution. The nonlinear thermal response of the supersensitive LPG was also reported and first explained.

Original language	English
Pages (from-to)	818-820
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	13
Issue number	8
DOIs	https://doi.org/10.1109/68.935814
Publication status	Published - Aug 2001

Keywords

fiber Bragg gratings
long-period fiber grating
photosensitive fibers
temperature sensors
tunable filters

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10.1109/68.935814

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title = "High-temperature sensitivity of long-period gratings in B-Ge codoped fiber",

abstract = "We report an investigation of thermal properties of long-period fiber gratings (LPFGs) of various periods fabricated in the conventional B-Ge codoped fiber. It has been found that the temperature sensitivity of the LPFGs produced in the B-Ge fiber can be significantly enhanced as compared with the standard telecom fiber. A total of 27.5-nm spectral shift was achieved from only 10 °C change in temperature for an LPFG with 240-μm period, demonstrating a first ever reported high sensitivity of 2.75 nm/°C. Such an LPFG may lead to high-efficiency and low-cost thermal/electrical tunable loss filters or sensors with extremely high-temperature resolution. The nonlinear thermal response of the supersensitive LPG was also reported and first explained.",

keywords = "fiber Bragg gratings, long-period fiber grating, photosensitive fibers, temperature sensors, tunable filters",

author = "Xuewen Shu and Allsop, {Thomas D.P.} and Bashir Gwandu and Lin Zhang and Ian Bennion",

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doi = "10.1109/68.935814",

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journal = "IEEE Photonics Technology Letters",

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T1 - High-temperature sensitivity of long-period gratings in B-Ge codoped fiber

AU - Shu, Xuewen

AU - Allsop, Thomas D.P.

AU - Gwandu, Bashir

AU - Zhang, Lin

AU - Bennion, Ian

PY - 2001/8

Y1 - 2001/8

N2 - We report an investigation of thermal properties of long-period fiber gratings (LPFGs) of various periods fabricated in the conventional B-Ge codoped fiber. It has been found that the temperature sensitivity of the LPFGs produced in the B-Ge fiber can be significantly enhanced as compared with the standard telecom fiber. A total of 27.5-nm spectral shift was achieved from only 10 °C change in temperature for an LPFG with 240-μm period, demonstrating a first ever reported high sensitivity of 2.75 nm/°C. Such an LPFG may lead to high-efficiency and low-cost thermal/electrical tunable loss filters or sensors with extremely high-temperature resolution. The nonlinear thermal response of the supersensitive LPG was also reported and first explained.

AB - We report an investigation of thermal properties of long-period fiber gratings (LPFGs) of various periods fabricated in the conventional B-Ge codoped fiber. It has been found that the temperature sensitivity of the LPFGs produced in the B-Ge fiber can be significantly enhanced as compared with the standard telecom fiber. A total of 27.5-nm spectral shift was achieved from only 10 °C change in temperature for an LPFG with 240-μm period, demonstrating a first ever reported high sensitivity of 2.75 nm/°C. Such an LPFG may lead to high-efficiency and low-cost thermal/electrical tunable loss filters or sensors with extremely high-temperature resolution. The nonlinear thermal response of the supersensitive LPG was also reported and first explained.

KW - fiber Bragg gratings

KW - long-period fiber grating

KW - photosensitive fibers

KW - temperature sensors

KW - tunable filters

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UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=935814

U2 - 10.1109/68.935814

DO - 10.1109/68.935814

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VL - 13

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EP - 820

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 8

ER -

High-temperature sensitivity of long-period gratings in B-Ge codoped fiber

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Keywords

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