Abstract

An approach to achieve refractive index sensing at an air and aqueous glycerol solution interface is proposed using a tapered-fiber-based microfiber Mach–Zehnder interferometer (MFMZI). Compared to a surrounding uniform medium of air or solutions, the spectral interference visibility of the MFMZI at the air/solution interface is significantly reduced due to a weak coupling between the fundamental cladding mode and high-order asymmetric cladding modes, which are extremely sensitive to the external refractive index. The MFMZI is experimentally demonstrated as an evanescent wave refractive index sensor to measure concentrations of glycerol solutions by monitoring average power attenuation of the tapered fiber.

© 2012 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Temperature-insensitive optical fiber refractometer based on multimode interference in two cascaded no-core square fibers

Jixuan Wu, Yinping Miao, Binbin Song, Kailiang Zhang, Wei Lin, Hao Zhang, Bo Liu, and Jianquan Yao
Appl. Opt. 53(22) 5037-5041 (2014)

Highly sensitive in-fiber interferometric refractometer with temperature and axial strain compensation

Jeremie Harris, Ping Lu, Hugo Larocque, Yanping Xu, Liang Chen, and Xiaoyi Bao
Opt. Express 21(8) 9996-10009 (2013)

Refractive index sensor based on plastic optical fiber with tapered structure

Feng De-Jun, Liu Guan-Xiu, Liu Xi-Lu, Jiang Ming-Shun, and Sui Qing-Mei
Appl. Opt. 53(10) 2007-2011 (2014)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription