Holographically Encoded Volume Phase Masks

Abstract

We present here a method to create spectrally addressable phase masks by encoding phase profiles into volume Bragg gratings, allowing these holographic elements to be used as phase masks at any wavelength capable of satisfying the Bragg condition of the hologram. Moreover, this approach enables the capability to encode and multiplex several phase masks into a single holographic element without cross-talk while maintaining a high diffraction efficiency. As examples, we demonstrate fiber mode conversion with near-theoretical conversion efficiency as well as simultaneous mode conversion and beam combining at wavelengths far from the original hologram recording wavelength.

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Document Details

Document Type
Technical Report
Publication Date
Jul 13, 2015
Accession Number
AD1015070

Entities

People

  • Axel Schuelzgen
  • Clemence Jollivet
  • Ivan Divliansky
  • Leonid B. Glebov
  • Marc Segall

Organizations

  • University of Central Florida

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bragg Angle
  • Bragg Gratings
  • Coding
  • Communication Systems
  • Conversion
  • Converters
  • Diffraction
  • Elements
  • Engineering
  • Equations
  • Far Field
  • Laser Beams
  • Lasers
  • Multiplexing
  • Optical Fiber Lasers
  • Phase Shift
  • Refractive Index

Fields of Study

  • Physics

Readers

  • Energy Conservation and Renewable Energy Engineering.
  • Image Processing and Computer Vision.