Abstract

We demonstrate an ultrasensitive temperature sensor based on an isopropanol-sealed optical microfiber taper (OMT) in a capillary. The OMT is highly sensitive to ambient refractive index (RI) with a maximum sensitivity of 18989nm/RI unit in the range of 1.3955–1.4008. The thermo-optic effect of isopropanol and the thermal expansions of the sealant and sealed liquid turn the OMT into an ultrasensitive temperature sensor with the maximum sensitivity of 3.88nm/°C in the range of 20°C–50°C. The temperature sensitivity contributions from different mechanisms are also investigated theoretically and experimentally.

© 2013 Optical Society of America

Full Article  |  PDF Article
Related Articles
Spectral behavior of thin film coated cascaded tapered long period gratings in multiple configurations

P. Pilla, P. Foglia Manzillo, M. Giordano, M. L. Korwin-Pawlowski, W. J. Bock, and A. Cusano
Opt. Express 16(13) 9765-9780 (2008)

Not-lithographic fabrication of micro-structured fiber Bragg gratings evanescent wave sensors

Domenico Paladino, Agostino Iadicicco, Stefania Campopiano, and Andrea Cusano
Opt. Express 17(2) 1042-1054 (2009)

Refractive index sensing based on higher-order mode reflection of a microfiber Bragg grating

Yu Zhang, Bo Lin, Swee Chuan Tjin, Han Zhang, Guanghui Wang, Ping Shum, and Xinliang Zhang
Opt. Express 18(25) 26345-26350 (2010)

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 (5)

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