Abstract
In this paper, the wavelength interrogation of optical sensors by novel
thermo-optic tunable filters with multiple partially reflected slanted mirrors
in silicon-on-insulator (SOI) technology is presented. The tunable filter
is used both for tunable band selection of broadband light source interrogating
the optical sensors, as well as for precise detection of interrogation optical
wavelength. New interrogator design is numerically studied by 2-D finite-difference
time-domain and finite-element method for a compact structure. The investigation
demonstrates the performance of an interrogator on SOI, 1 cm long, having
about 1 pm wavelength resolution and 1 ms scanning over 40 nm range at 1550
nm, with an operation power of about 16 mW.
© 2012 IEEE
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