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

Small-period long-period fiber grating with improved refractive index sensitivity and dual-parameter sensing ability

Not Accessible

Your library or personal account may give you access

Abstract

We UV inscribe and characterize a long-period fiber grating with a period of 25 μm. A series of polarization-dependent dual-peak pairs can be seen in the transmission spectrum, even though only the symmetrical refractive index modification is introduced. The fabricated grating exhibits a lower temperature sensitivity compared with standard long-period gratings and an enhanced refractive index sensitivity of 312.5nm/RIU averaged from 1.315 to 1.395, which is more than four-fold higher than standard long-period gratings in this range. The full width at half-maximum of the fabricated grating is only about 0.6 nm, allowing for high-resolution sensing. Moreover, the grating period is so small that the attenuation dip corresponding to a high-order Bragg resonance can also be seen, which can act as a monitor of the unwanted perturbation to realize dual-parameter sensing.

© 2017 Optical Society of America

Full Article  |  PDF Article
More Like This
Compact eccentric long period grating with improved sensitivity in low refractive index region

Fangcheng Shen, Kaiming Zhou, Neil Gordon, Lin Zhang, and Xuewen Shu
Opt. Express 25(14) 15729-15736 (2017)

Fabrication of long period fiber gratings of subnanometric bandwidth

L. Poveda-Wong, J. L. Cruz, M. Delgado-Pinar, X. Roselló-Mechó, A. Díez, and M. V. Andrés
Opt. Lett. 42(7) 1265-1268 (2017)

Effect of induced inner curvature on refractive index sensitivity in internally tilted long-period gratings

Mojtaba Arjmand, Francesco Chiavaioli, Simone Berneschi, Francesco Baldini, Mahmood Soltanolkotabi, and Cosimo Trono
Opt. Lett. 41(7) 1443-1446 (2016)

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 (7)

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

Select as filters


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