DocumentCode
38711
Title
Engineering the Sensitivity and Response Time of Edge-Emitting Laser Hydrogen Sensors
Author
Griffin, Benjamin G. ; Arbabi, Amir ; Goddard, L.L.
Author_Institution
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
Volume
13
Issue
8
fYear
2013
fDate
Aug. 2013
Firstpage
3098
Lastpage
3105
Abstract
Simulation results and experimental measurements are presented for ridge waveguide edge-emitting lasers with a palladium thin film integrated for hydrogen gas detection. The palladium film experiences a refractive index change when in contact with hydrogen, causing a shift in the laser´s output power and wavelength. It is found that the sensitivity of the device can be controlled by altering the width of the ridge waveguide, and the response time can be controlled by regulating the operating temperature of the device.
Keywords
gas sensors; refractive index; semiconductor lasers; edge-emitting laser hydrogen sensors; operating temperature; refractive index; response time engineering; ridge waveguide edge-emitting lasers; sensitivity engineering; Diode lasers; Gas detectors; Laser sensors; Optoelectronic and photonic sensors;
fLanguage
English
Journal_Title
Sensors Journal, IEEE
Publisher
ieee
ISSN
1530-437X
Type
jour
DOI
10.1109/JSEN.2013.2260327
Filename
6509439
Link To Document