Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11656
Title: VCSEL-based tilted fiber grating vibration sensing system
Authors: Huang, Y
Guo, T
Lu, C 
Tam, HY 
Keywords: Tilted fiber grating
Vertical-cavity surface-emitting laser (VCSEL)
Vibration measurement
Issue Date: 2010
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE photonics technology letters, 2010, v. 22, no. 16, 5518469, p. 1235-1237 How to cite?
Journal: IEEE photonics technology letters 
Abstract: A fiber-optic vibration sensing system that uses a tilted fiber Bragg grating (TFBG) and a vertical-cavity surface-emitting laser (VCSEL) has been demonstrated. The backward-propagating low-order cladding modes excited by the TFBG can be effectively recoupled to the fiber core via a lateral-offset-splice upstream the TFBG and the amount of recoupling varies strongly with fiber curvature, providing the sensing mechanism. VCSEL with matched wavelength enables the recoupling to work at a high power level and an improved optical signal-to-noise ratio better than 40 dB is achieved. Meanwhile, VCSEL provides a high-speed continuous wavelength tuning over 1 ∼ 2 nm which perfectly covers the strongest recoupling band, making the demodulation filter unnecessary. Dynamic vibration measurement up to 200 Hz has been achieved via cost-effective normalized power detection.
URI: http://hdl.handle.net/10397/11656
ISSN: 1041-1135
EISSN: 1941-0174
DOI: 10.1109/LPT.2010.2052797
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

2
Last Week
0
Last month
0
Citations as of Sep 9, 2017

WEB OF SCIENCETM
Citations

23
Last Week
0
Last month
1
Citations as of Sep 21, 2017

Page view(s)

35
Last Week
0
Last month
Checked on Sep 17, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.