Abstract

We report the first slightly tilted Bragg gratings photo-inscription in polymer optical fiber (POF). For this, we make use of trans-4-stilbenemethanol-doped photosensitive step-index poly(methyl methacrylate) (PMMA) POFs. Tilted fiber Bragg gratings (TFBGs) are inscribed in the near-infrared wavelength range using the scanning phase mask technique with a tilted phase mask in the plane perpendicular to the laser beam direction. The transmitted amplitude spectrum evolution of a 3° TFBG is analyzed as a function of the surrounding refractive index. A maximum sensitivity close to $13\mathrm{nm}/\mathrm{RIU}$ (refractive index unit) is obtained in the range 1.42–1.49.

© 2014 Optical Society of America

Highly reflective Bragg gratings in slightly etched step-index polymer optical fiber

Xuehao Hu, Chi-Fung Jeff Pun, Hwa-Yaw Tam, Patrice Mégret, and Christophe Caucheteur
Opt. Express 22(15) 18807-18817 (2014)

Femtosecond laser line-by-line tilted Bragg grating inscription in single-mode step-index TOPAS/ZEONEX polymer optical fiber

Hang Qu, Zhen Chen, Shixin Gao, Rui Min, Getinet Woyessa, Ole Bang, Heng Wang, Christophe Caucheteur, and Xuehao Hu
Opt. Lett. 48(6) 1438-1441 (2023)

Surface plasmon excitation at near-infrared wavelengths in polymer optical fibers

Xuehao Hu, Patrice Mégret, and Christophe Caucheteur
Opt. Lett. 40(17) 3998-4001 (2015)

Concatenation of surface plasmon resonance sensors in a single optical fiber using tilted fiber Bragg gratings

Mohamad Diaa Baiad and Raman Kashyap
Opt. Lett. 40(1) 115-118 (2015)

Large refractive index modulation based on a BDK-doped step-index PMMA optical fiber for highly reflective Bragg grating inscription

Xuehao Hu, Xiaoyu Yue, Xin Cheng, Shixin Gao, Rui Min, Heng Wang, Hang Qu, and Hwa-Yaw Tam
Opt. Lett. 46(12) 2864-2867 (2021)