Holographically Encoded Volume Phase Masks

Keywords

Bragg gratings; holographic optical elements; laser beam combining.; laser beam shaping; phase masks; volume gratings

Abstract

We present here amethod 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.

Publication Date

7-1-2015

Publication Title

Optical Engineering

Volume

54

Issue

7

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/1.OE.54.7.076104

Socpus ID

84953931913 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84953931913

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