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

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

doi:10.1117/12.461657

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

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

Aston Institute of Photonic Technologies (AiPT)

Research output: Chapter in Book/Published conference output › Conference publication

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 language	English
Title of host publication	Rare-Earth-doped materials and devices VI
Editors	Shibin Jiang, Robert W. Keys
Publisher	SPIE
Pages	16-20
Number of pages	5
DOIs	https://doi.org/10.1117/12.461657
Publication status	Published - 5 Apr 2002
Event	Photonics West 2002: High-power Lasers and Applications - San Jose, CA, United States Duration: 28 Jan 2002 → …

Publication series

Name	SPIE proceedings
Publisher	SPIE
Volume	4645
ISSN (Print)	0277-786X

Conference

Conference	Photonics West 2002: High-power Lasers and Applications
Abbreviated title	Photonics West 2002
Country/Territory	United States
City	San Jose, CA
Period	28/01/02 → …

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

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10.1117/12.461657

Superhigh temperature sensitivity of long-period gratings in B_Ge co-doped fiber
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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Cite this

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

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.",

author = "Xuewen Shu and Gwandu, {Bashir A.L.} and Lin Zhang and Ian Bennion",

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 ; Photonics West 2002: High-power Lasers and Applications , Photonics West 2002 ; Conference date: 28-01-2002",

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day = "5",

doi = "10.1117/12.461657",

language = "English",

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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

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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

PY - 2002/4/5

Y1 - 2002/4/5

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.

AB - 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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Y2 - 28 January 2002

ER -

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

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