We demonstrate long-period gratings whose attenuation can be changed by 25 dB in a 48-nm spectral band, with ambient index changes of only 2.7×10−4. This is achieved by inducing coupling to ultra sensitive cladding modes in engineered fiber waveguides.
© 2003 Optical Society of America
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
Login to access OSA Member Subscription