Abstract
A new approach for designing multiband rejection filters is proposed
based on the optimization of a periodically phase-shifted long period fiber
grating (LPG). The validity of the method is demonstrated by performing simulations
for the typical cases. It is shown that using the proposed synthesis method,
spectral position, and bandwidth of the each reflection band can be controlled
by varying the grating length and the phase shifting period. In addition,
a desired number of rejection bands within the transmission spectrum can be
generated using a phase-shifted LPG with an optimized phase shifting series.
Furthermore, a number of unwanted rejection bands can easily be removed from
the transmission spectrum by optimizing the phase shifting series.
© 2008 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