Femtosecond laser written arrayed waveguide gratings with integrated photonic lanterns

G. Douglass*, F. Dreisow, S. Gross, M. J. Withford

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

We demonstrate for the first time functional arrayed waveguide gratings (AWGs) fabricated using the femtosecond laser direct-write technique. This fabrication technique is a mask-less alternative to lithography enabling design flexibility and rapid prototyping. It is ideal for customized small scale production for new applications. The devices were demonstrated in the visible region at 632.8 nm with a measured free spectral range (FSR) of 22.2 nm, and 1.35 nm resolution. To highlight the advantages of using a 3-dimensional fabrication technique, a 3-port photonic lantern was integrated with an AWG in a single monolithic chip. Integration of this type is not feasible with lithography-based AWG fabrication and can increase the functionality of AWGs for sensing applications.

Original languageEnglish
Pages (from-to)1497-1505
Number of pages9
JournalOptics Express
Volume26
Issue number2
DOIs
Publication statusPublished - 22 Jan 2018

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