Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Long period grating in multicore optical fiber: an ultra-sensitive vector bending sensor for low curvatures

Not Accessible

Your library or personal account may give you access

Abstract

Long period grating was UV inscribed into a multicore fiber consisting of 120 single mode cores. The multicore fiber that hosts the grating was fusion spliced into a single mode fiber at both ends. The splice creates a taper transition between the two types of fiber that produces a nonadiabatic mode evolution; this results in the illumination of all the modes in the multicore fiber. The spectral characteristics of this fiber device as a function of curvature were investigated. The device yielded a significant spectral sensitivity as high as 1.23nm/m1 and 3.57dB/m1 to the ultra-low curvature values from 0 to 1m1. This fiber device can also distinguish the orientation of curvature experienced by the fiber as the long period grating attenuation bands producing either a blue or red wavelength shift. The finite element method (FEM) model was used to investigate the modal behavior in multicore fiber and to predict the phase-matching curves of the long period grating inscribed into multicore fiber.

© 2014 Optical Society of America

Full Article  |  PDF Article
More Like This
Ultrasensitive vector bending sensor based on multicore optical fiber

Joel Villatoro, Amy Van Newkirk, Enrique Antonio-Lopez, Joseba Zubia, Axel Schülzgen, and Rodrigo Amezcua-Correa
Opt. Lett. 41(4) 832-835 (2016)

All-fiber Mach-Zehnder curvature sensor based on multimode interference combined with a long-period grating

O. Frazão, J. Viegas, P. Caldas, J. L. Santos, F. M. Araújo, L. A. Ferreira, and F. Farahi
Opt. Lett. 32(21) 3074-3076 (2007)

Bending sensitivity of in-series long-period fiber gratings

Byeong Ha Lee and Junji Nishii
Opt. Lett. 23(20) 1624-1626 (1998)

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

Figures (6)

You do not have subscription access to this journal. Figure files 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

Equations (3)

You do not have subscription access to this journal. Equations 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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved