Abstract
We report a novel fiber-optic hybrid-structured Fabry–Perot interferometer (HSFPI) based on large lateral offset splicing for simultaneous measurement of strain and temperature with advantages of high sensitivity, low cost, and easy fabrication. The high-strain sensitivity of 28.95 pm/με and low-temperature sensitivity of 0.54 pm/°C are obtained for air cavity, and strain sensitivity of 28.95 pm/με is over five times compared to the current HSFPI (5.18 pm/με). In addition, strain and temperature sensitivities of silica cavity are, respectively, 1.59 pm/με and 12.71 pm/°C. Thus, due to the different sensitivities of air cavity and silica cavity to strain and temperature, this structure can be used to concurrently measure strain and temperature.
PDF Article
More Like This
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 Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription