Super-high temperature sensitivity of long-period gratings in B/Ge co-doped fiber

Xuewen Shu, Bashir A.L. Gwandu, Lin Zhang, Ian Bennion

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Long period fiber grating (LPFG) can be used as active gain controlling device in EDFA. However, LPFGs fabricated in the standard telecom fiber only have a typical temperature sensitivity of 3-10nm/100°C, which may not be sufficient for implementing tuneable filters capable of wide tuning range and high tuning efficiency. In this paper, we report a theoretical and experimental investigation of thermal properties of LPFGs fabricated in B/Ge co-doped optical fiber. We have found that the temperature sensitivity of the LPFGs in the B/Ge fiber is considerably increased compared with those produced in the standard fiber. The LPFGs written in the B/Ge fiber have achieved, on average, one order of magnitude higher sensitivity than that of the LPFGs produced in the standard telecom fiber. We have also identified that the thermal response of LPFG is strongly dependent on the order of the coupled resonant cladding mode. The maximum sensitivity of 1.75nm/°C achieved by the 10th cladding mode of the 240μm LPFG is nearly 24 times that of the minimum value (0.075nm/C) exhibited by the 30th mode of the 34μm LPFG. Such devices may lead to high-efficiency and low-cost thermal/electrical tunable loss filters or sensors with extremely high temperature resolution.
Original languageEnglish
Title of host publicationRare-Earth-doped materials and devices VI
EditorsShibin Jiang, Robert W. Keys
PublisherSPIE
Pages16-20
Number of pages5
DOIs
Publication statusPublished - 5 Apr 2002
EventPhotonics West 2002: High-power Lasers and Applications - San Jose, CA, United States
Duration: 28 Jan 2002 → …

Publication series

NameSPIE proceedings
PublisherSPIE
Volume4645
ISSN (Print)0277-786X

Conference

ConferencePhotonics West 2002: High-power Lasers and Applications
Abbreviated titlePhotonics West 2002
CountryUnited States
CitySan Jose, CA
Period28/01/02 → …

Fingerprint

gratings
fibers
tuning
filters
sensitivity
thermodynamic properties
optical fibers
temperature
sensors

Bibliographical note

Xuewen Shu ; Bashir A. Gwandu ; Lin Zhang and Ian Bennion, "Superhigh temperature sensitivity of long-period gratings in B/Ge co-doped fiber", Proc. SPIE 4645, Rare-Earth-Doped Materials and Devices VI, 16 (April 5, 2002).

Copyright 2002 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited

http://dx.doi.org/10.1117/12.461657

Cite this

Shu, X., Gwandu, B. A. L., Zhang, L., & Bennion, I. (2002). Super-high temperature sensitivity of long-period gratings in B/Ge co-doped fiber. In S. Jiang, & R. W. Keys (Eds.), Rare-Earth-doped materials and devices VI (pp. 16-20). (SPIE proceedings; Vol. 4645). SPIE. https://doi.org/10.1117/12.461657
Shu, Xuewen ; Gwandu, Bashir A.L. ; Zhang, Lin ; Bennion, Ian. / Super-high temperature sensitivity of long-period gratings in B/Ge co-doped fiber. Rare-Earth-doped materials and devices VI. editor / Shibin Jiang ; Robert W. Keys. SPIE, 2002. pp. 16-20 (SPIE proceedings).
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Shu, X, Gwandu, BAL, Zhang, L & Bennion, I 2002, Super-high temperature sensitivity of long-period gratings in B/Ge co-doped fiber. in S Jiang & RW Keys (eds), Rare-Earth-doped materials and devices VI. SPIE proceedings, vol. 4645, SPIE, pp. 16-20, Photonics West 2002: High-power Lasers and Applications , San Jose, CA, United States, 28/01/02. https://doi.org/10.1117/12.461657

Super-high temperature sensitivity of long-period gratings in B/Ge co-doped fiber. / Shu, Xuewen; Gwandu, Bashir A.L.; Zhang, Lin; Bennion, Ian.

Rare-Earth-doped materials and devices VI. ed. / Shibin Jiang; Robert W. Keys. SPIE, 2002. p. 16-20 (SPIE proceedings; Vol. 4645).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N1 - Xuewen Shu ; Bashir A. Gwandu ; Lin Zhang and Ian Bennion, "Superhigh temperature sensitivity of long-period gratings in B/Ge co-doped fiber", Proc. SPIE 4645, Rare-Earth-Doped Materials and Devices VI, 16 (April 5, 2002). Copyright 2002 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited http://dx.doi.org/10.1117/12.461657

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N2 - Long period fiber grating (LPFG) can be used as active gain controlling device in EDFA. However, LPFGs fabricated in the standard telecom fiber only have a typical temperature sensitivity of 3-10nm/100°C, which may not be sufficient for implementing tuneable filters capable of wide tuning range and high tuning efficiency. In this paper, we report a theoretical and experimental investigation of thermal properties of LPFGs fabricated in B/Ge co-doped optical fiber. We have found that the temperature sensitivity of the LPFGs in the B/Ge fiber is considerably increased compared with those produced in the standard fiber. The LPFGs written in the B/Ge fiber have achieved, on average, one order of magnitude higher sensitivity than that of the LPFGs produced in the standard telecom fiber. We have also identified that the thermal response of LPFG is strongly dependent on the order of the coupled resonant cladding mode. The maximum sensitivity of 1.75nm/°C achieved by the 10th cladding mode of the 240μm LPFG is nearly 24 times that of the minimum value (0.075nm/C) exhibited by the 30th mode of the 34μm LPFG. Such devices may lead to high-efficiency and low-cost thermal/electrical tunable loss filters or sensors with extremely high temperature resolution.

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Shu X, Gwandu BAL, Zhang L, Bennion I. Super-high temperature sensitivity of long-period gratings in B/Ge co-doped fiber. In Jiang S, Keys RW, editors, Rare-Earth-doped materials and devices VI. SPIE. 2002. p. 16-20. (SPIE proceedings). https://doi.org/10.1117/12.461657