Bend response of weakly tilted Bragg grating inscribed in all-solid photonic band-gap fibers

Yinping Miao; Bo Liu; Kailiang Zhang; Xiaoyun Zhu; Yan Liu; Xingya Chen; Hao Zhang

doi:10.1117/12.912809

30 January 2012 Bend response of weakly tilted Bragg grating inscribed in all-solid photonic band-gap fibers

Yinping Miao, Bo Liu, Kailiang Zhang, Xiaoyun Zhu, Yan Liu, Xingya Chen, Hao Zhang

Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 835116 (2012) https://doi.org/10.1117/12.912809
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia

Abstract

Weakly tilted fiber Bragg gratings (W-TFBGs) with a certain tilted angle are inscribed in the Ge-doped cladding rods of all-solid photonic band-gap fibers (AS-PBGF) by UV illumination. There are couplings not only forward-propagating LP₀₁ mode to counter-propagating LP01 mode but also the couplings to counter-propagating high order supermodes based on tilted refractive index modulation. The responses of the W-TFBGs to temperature and bend are investigated. The results indicate that the resonance peaks will shift red-side with increasing temperatures, and the sensitivities of different resonance peaks are very close in the same grating. When the bend is applied, the grids of W-TFBG will be compressed or stretched. Two resonance peaks will shift with increasing curvatures, which is related to the orientation of curvature. Therefore, it is potential to work as a directional bend sensor. For the fiber grating with high-order supermodes coupling, it could form fiber grating array by different levels. If every grating has individual response to surrounding, such a single W-TFBG could be used for one point and multi-parameter measurement. In addition, this work provides some insights into the mechanisms that contribute to the measured properties of TFBG in the photonic crystal fiber. It is also an effective method to investigate supermode properties of photonic crystal fiber.

Citation Download Citation

Yinping Miao, Bo Liu, Kailiang Zhang, Xiaoyun Zhu, Yan Liu, Xingya Chen, and Hao Zhang "Bend response of weakly tilted Bragg grating inscribed in all-solid photonic band-gap fibers", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835116 (30 January 2012); https://doi.org/10.1117/12.912809

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available