Presentation + Paper
5 September 2015 Modeling fiber Bragg grating device networks in photomechanical polymer optical fibers
Joseph T. Lanska, Mark G. Kuzyk, Dennis M. Sullivan
Author Affiliations +
Abstract
We report on the modeling of fiber Bragg grating (FBG) networks in poly(methyl methacrylate) (PMMA) polymer fibers doped with azo dyes. Our target is the development of Photomechanical Optical Devices (PODs), comprised of two FBGs in series, separated by a Fabry-Perot cavity of photomechanical material. PODs exhibit photomechanical multi-stability, with the capacity to access multiple length states for a fixed input intensity when a mechanical shock is applied.

Using finite-difference time-domain (FDTD) numerical methods, we modeled the photomechanical response of both Fabry-Perot and Bragg-type PODs in a single polymer optical fiber. The polymer fiber was modeled as an instantaneous Kerr-type nonlinear χ(3) material. Our model correctly predicts the essential optical features of FBGs as well as the photomechanical multi-stability of nonlinear Fabry-Perot cavity-based PODs.

Networks of PODs may provide a framework for smart shape-shifting materials and fast optical computation where the decision process is distributed over the entire network. In addition, a POD can act as memory, and its response can depend on input history. Our models inform and will accelerate targeted development of novel Bragg grating-based polymer fiber device networks for a variety of applications in optical computing and smart materials.
Conference Presentation
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph T. Lanska, Mark G. Kuzyk, and Dennis M. Sullivan "Modeling fiber Bragg grating device networks in photomechanical polymer optical fibers", Proc. SPIE 9564, Light Manipulating Organic Materials and Devices II, 95640O (5 September 2015); https://doi.org/10.1117/12.2188702
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KEYWORDS
Fiber Bragg gratings

Fabry–Perot interferometers

Refractive index

Polymers

Geometrical optics

Instrument modeling

Finite-difference time-domain method

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