Abstract

We propose a dual air cavity based Fabry–Perot interferometer for the sensing of physical parameters such as strain and curvature. This highly stable and compact structure can be fabricated by splicing SMF with hollow core photonic crystal fiber (HCPCF) with optimized splicing parameters. The proposed structure showed negligibly small hysteresis along with long range of operation. The interference pattern can easily be controlled by controlling the geometry of the cavities according to the requirement. Experimental results show that the proposed structure has a strain and curvature sensitivity of ${\rm{4}}{\rm{.08\; pm/\mu \varepsilon, 2}}{\rm{.23 \;nm/}} \; {{\rm{m}}^{ - 1}}$ . The temperature sensitivity varies from 0.5 to 9 pm/°C. Moreover, the solid silica region in the probe can be utilized to study the effect of refractive index of surrounding medium.

© 2016 IEEE

PDF Article

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