Abstract

A refractive index (RI) and liquid surface tension (ST) (at the level of 103  N) measurement system has been proposed by using a 1.80-cm-long, 8°-tilted fiber Bragg grating (TFBG). When the TFBG is pulled up from the liquid into the air at a fixed height (corresponding to a fixed contact angle between the fiber and the liquid), the ST acting upon the TFBG depends on the length of the TFBG covered with the liquid film along the fiber axis direction. The liquid film covering the grating results in the shifts of the resonant cladding modes of the TFBG. For the liquid with an RI in the range from 1.3341 to 1.4415, its RI and ST can be obtained through the measurements of shifts in the resonant wavelengths of the cutoff mode and changes in the intensities of the resonant wavelength dips in the TFBG spectrum by using the known ST and RI of water as a reference.

© 2018 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Measurements of milli-Newton surface tension forces with tilted fiber Bragg gratings

Changyu Shen, Chuan Zhong, Dejun Liu, Xiaokang Lian, Jianyao Zheng, Jingjing Wang, Yuliya Semenova, Gerald Farrell, Jacques Albert, and John F. Donegan
Opt. Lett. 43(2) 255-258 (2018)

Refractive index sensor based on tilted fiber Bragg grating and stimulated Brillouin scattering

Xueliang Shi, Shilie Zheng, Hao Chi, Xiaofeng Jin, and Xianmin Zhang
Opt. Express 20(10) 10853-10858 (2012)

Temperature-calibrated high-precision refractometer using a tilted fiber Bragg grating

Biqiang Jiang, Kaiming Zhou, Changle Wang, Yunhe Zhao, Jianlin Zhao, and Lin Zhang
Opt. Express 25(21) 25910-25918 (2017)

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 (10)

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

Equations (2)

You do not have subscription access to this journal. Equations 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