Acta Photonica Sinica, Volume. 41, Issue 7, 841(2012)
Experimentally Study on Highsensitivity Fiberoptic Refractometers Based on MachZehnder Interference
A high sensitivity fiberoptic refractive index sensor based on MachZehnder interferometer is proposed and fabricated. The relationship between the resonance wavelength shifts to the refractive index is studied with NaCl and glycerin solution. The experimental results show that the resonance wavelength shifts to longer wavelength with the increase of the refractive index of the surrounding media, and the wavelength shift is nearly linear to the refractive index with a sensitivity is of 4 086 nm/refractiveindex as the refractive index ranges from 1.333 to 1.356. The sensor is easy to fabricate, compact, and will be usefull in chemical and biotechnological industry.
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ZHOU Yingwu. Experimentally Study on Highsensitivity Fiberoptic Refractometers Based on MachZehnder Interference[J]. Acta Photonica Sinica, 2012, 41(7): 841
Received: Jan. 17, 2012
Accepted: --
Published Online: Aug. 31, 2012
The Author Email: Yingwu ZHOU (ywzhou1073@sina.com)