Modeling the Diffraction Efficiency of Reflective-Type PQ-PMMA VBG Using Simplified Rate Equations

Bao Jen Shih, Cuan Wen Chen, Yu Hua Hsieh, Te Yuan Chung*, Shiuan-Huei Lin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

A simulation based on the rate equations was performed to analyze the concentration distribution of molecules in phenanthrenequinone (PQ) doped polymethyl methacrylate (PMMA) polymers (PQ-PMMAs) exposed using a two-beam interference configuration. The concentration distributions were used to predict the diffraction efficiency of PQ-PMMA-based volume Bragg gratings (VBGs) by using the transfer matrix method. The simulation results suggest that an intermittent exposure method can promote the diffusion of PQ molecules and increase the final diffraction efficiency. A series of experiments validated our hypothesis that the diffraction efficiency of reflective-type PQ-PMMA VBG can be predicted.

Original languageEnglish
Article number6101307
JournalIEEE Photonics Journal
Volume10
Issue number6
DOIs
StatePublished - 1 Dec 2018

Keywords

  • Bragg gratings
  • holographic optical components
  • optical polymers

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