Multiplexed polymer-based chirped grating lenses working at 632.8 nm wavelength

Abstract

A multiplexed waveguide hologram containing two off-axis chirped grating lenses working at 632.8 nm was demonstrated on a glass substrate. Focal lengths of 35 and 37 mm were experimentally confirmed. The nature of phase modulation of the holographic medium allows the formation of multiplexed waveguide lenses on the same waveguide emulsion area. The graded index (GRIN) characteristic of the guiding medium allows the formation of polymer-based photonic devices on any substrate of interest which greatly enhances the transferability of polymer-based photonic integrated circuits (PICs) to various optoelectronic circuits.