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|Title: ||Experimental demonstration of a fiber-optic gas sensor network addressed by FMCW|
|Authors: ||Ho, Hoi-lut|
Yu, H. B.
Chan, Peter K. C.
Chan, C. C.
|Subjects: ||Frequency-modulated continuous wave|
Optical fiber gas sensors
Wavelength modulation spectroscopy
|Issue Date: ||Nov-2000 |
|Citation: ||IEEE photonics technology letters, Nov. 2000, v. 12, no. 11, p.1546-1548.|
|Abstract: ||We report on the use of frequency-modulated continuous-wave and wavelength modulation spectroscopy techniques for addressing a multipoint gas sensor network. A three-sensor network of ladder topology is experimentally demonstrated for the detection of acetylene gas. A minimum detectable concentration of 270 ppm/√Hz is obtained with 25-mm gas cells under atmospheric pressure which corresponds to a minimum detectable absorbance of 3.40 x 10[sup - 4]. The crosstalk between the sensors is below -22 dB.|
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|Type: ||Journal/Magazine Article|
|Appears in Collections:||EE Journal/Magazine Articles|
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