A fiber strain and vibration sensor with high birefringence polarization maintaining fiber based on Sagnac interferometer

2011 ◽  
Author(s):  
Yi Li ◽  
Miao Sun ◽  
Xinyong Dong ◽  
Zaixuan Zhang ◽  
Shangzhong Jin
Keyword(s):  
Vibration Sensor ◽  
Sagnac Interferometer ◽  
High Birefringence ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining

scholarly journals A High-Birefringence Microfiber Sagnac-Interferometer Biosensor Based on the Vernier Effect

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4114 ◽  
Author(s):  
Xue-Zhou Wang ◽  
Qi Wang
Keyword(s):  
Refractive Index ◽  
Sagnac Interferometer ◽  
Refractive Index Sensitivity ◽  
Electrostatic Adsorption ◽  
High Birefringence ◽  
Polarization Maintaining Fiber ◽  
Good Biocompatibility ◽  
Polarization Maintaining ◽  
Index Sensitivity ◽  
Index Unit

We propose a high-sensitive Sagnac-interferometer biosensor based on theVernier effect (VE) with a high-birefringence microfiber. The sensitivity enhancement is achieved by utilizing two cascaded Sagnac interferometers. One of the two interference loops consists of a panda polarization-maintaining fiber as a filter, whilst the other is comprised of high-birefringent microfiber coated Graphene oxide (GO) as a sensing channel. We theoretically analyzed the sensitivity of the sensor and verified it with experiments. The results of the simulation show that the refractive index sensitivity is more than five times that of the fiber sensor based on a single Sagnac loop. The sensitivity of the refractive index in the experiments can reach 2429 nm/refractive index unit (RIU), which is basically in accordance with the simulation. We also use electrostatic adsorption to coat GO on the surface of the sensing channel. GO is employed to adsorb bovine serum albumin (BSA) molecules to achieve the desired detection results, which has good biocompatibility and large specific surface area. The sensitivity to detect BSA can reach 9.097 nm/(mg×mL−1).

scholarly journals Balanced polarization maintaining fiber Sagnac interferometer vibration sensor

2011 ◽  
Vol 19 (22) ◽  
pp. 21467 ◽  
Author(s):  
Kenji Wada ◽  
Hirokazu Narui ◽  
Daiki Yamamoto ◽  
Tetsuya Matsuyama ◽  
Hiromichi Horinaka
Keyword(s):  
Vibration Sensor ◽  
Sagnac Interferometer ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining

A fiber strain and vibration sensor based on high birefringence polarization maintaining fibers

2014 ◽  
Vol 322 ◽  
pp. 105-108 ◽  
Author(s):  
Juan Kang ◽  
Xinyong Dong ◽  
Yinghao Zhu ◽  
Shangzhong Jin ◽  
Songlin Zhuang
Keyword(s):  
Vibration Sensor ◽  
High Birefringence ◽  
Polarization Maintaining
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