Excellent Thermal Stability of Optical Fiber Grating Inscribed on Thermosetting Silicone

Bin Zhou, Yilong Zeng, Barerem Melgueba Mao, Dinusha Serandi Gunawardena, Zhengyong Liu, Yuk Ting Ho, Hwa Yaw Tam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Optical fiber gratings inscribed on polymer fibers are more versatile compare with those in silica fibers due to the diversity of the polymers. However the present polymer fiber gratings have weak thermostability as they are made on thermoplastic materials. In this work, we have greatly improved their thermostability by developing a novel fiber grating on thermosetting silicone using deep ultraviolet (UV) laser induced refractive index (RI) increment and ablation. The spectra evolutions in high temperatures thermal treatment have been recorded in order to demonstrate the thermal stability. Nano silica particles dopant owing to the high wettability of silicone could further stabilize the grating. The Raman spectra show partial pyrolysis reactions of the silicone grating at high temperature, and the basis for stability.

Original languageEnglish
Article number9250542
Pages (from-to)1483-1488
Number of pages6
JournalJournal of Lightwave Technology
Volume39
Issue number5
DOIs
Publication statusPublished - 1 Mar 2021

Keywords

  • Fiber gratings
  • silicone
  • thermal stability
  • thermosetting optical fiber

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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