Directly Laser-Written Integrated Photonics Devices Including Diffractive Optical Elements

Keywords

Diffractive optics; Femtosecond laser direct writing; Integrated micro-optics fabrication; Laser materials processing

Abstract

Femtosecond laser-written integrated devices involving Fresnel Zone Plates (FZPs) and waveguide arrays are demonstrated as built-in optical couplers. These structures were fabricated in borosilicate glass using a direct laser writing technique. The optical properties of these integrated photonic structures were investigated using CW lasers and high-resolution CCDs. For a single FZP coupled to a single waveguide, the overall coupling efficiency was 9%. A multiplexed optical coupler composed of three FZP layers was demonstrated to couple three waveguides simultaneously in a waveguide array. Structures of this type can be used as platforms for multichannel waveguide coupling elements or as microfluidic sensors that require higher light collecting efficiency.

Publication Date

8-1-2016

Publication Title

Optics and Lasers in Engineering

Volume

83

Number of Pages

66-70

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.optlaseng.2016.02.027

Socpus ID

84961905457 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84961905457

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