Fast Response Microstructured Optical Fiber Methane Sensor With Multiple Side-Openings

We have demonstrated a fast response optical fiber methane sensor by use of a hollow-core photonic bandgap fiber with periodic microchannels fabricated by a femtosecond Ti:sapphire laser. A diffusion limited response time of ~3 s and a sensitivity of ~647 ppm have been achieved for a 7-cm sensing fi...

Full description

Saved in:
Bibliographic Details
Published inIEEE photonics technology letters Vol. 22; no. 5; pp. 296 - 298
Main Authors Hoo, Y.L., Shujing Liu, Hoi Lut Ho, Wei Jin
Format Journal Article
LanguageEnglish
Published New York IEEE 01.03.2010
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Delay
Detection
Diffusion
Fiber lasers
Fiber optics
Fibers
Gas lasers
gas sensor
hollow-core photonic bandgap fiber (HC-PBF)
Methane
Microchannel
microstructured fiber (MF)
Optical fiber losses
Optical fiber sensors
Optical fibers
Optoelectronic and photonic sensors
Photonic bandgap fibers
Photonics
Response time
Sensors
Ultrafast optics
Online AccessGet full text

Cover

More Information
Summary:We have demonstrated a fast response optical fiber methane sensor by use of a hollow-core photonic bandgap fiber with periodic microchannels fabricated by a femtosecond Ti:sapphire laser. A diffusion limited response time of ~3 s and a sensitivity of ~647 ppm have been achieved for a 7-cm sensing fiber with seven side-holes separated by 1 cm along the fiber. The side holes introduce very little loss and hence it would be practically possible to construct fiber gas sensors with long sensing length (up to a few tens of meters) to achieve highly sensitive distributed sensing without compromising the response time.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
SourceType-Scholarly Journals-2
SourceType-Conference Papers & Proceedings-1
ObjectType-Conference-3
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2009.2039016