Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/29588
Title: Long-period fiber grating temperature sensor based on intensity measurement
Authors: Liu, Y
Ge, C
Zhao, D
Liu, Z
Guo, Z
Dong, X
Tam, HY 
Keywords: Long period fiber grating
Sensor
Simultaneous measurements
Issue Date: 1999
Publisher: 中國學術期刊 (光盤版) 電子雜誌社
Source: 光子學報 (Acta photonica Sinica), 1999, v. 28, no. 4, p. 356-359 How to cite?
Journal: 光子學報 (Acta photonica Sinica) 
Abstract: It is investigated the temperature properties of long period fiber grating (LPG). The measured temperature coefficient is 0. 0 8 6 nm/°C, which is about 8. 2 times higher than the typical value for a normal fiber Bragg grating. It is investigated the temperature sensing properties of LPG based on intensity measurement, by using long period fiber grating as sensor element and using tunable erbium-doped fiber ring laser as optical source. In the temperature range of 74 °C, the loss (logarithm of intensity) of the laser is linear with the measuring temperature and the linearity can be repeated well. The resolution of temperature measurement is 0. l°C.
URI: http://hdl.handle.net/10397/29588
ISSN: 1004-4213
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