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Femtosecond direct-written integrated mode couplers

Riesen, Nicolas; Gross, Simon; Love, John D; Withford, Michael J


We report the design and fabrication of three-dimensional integrated mode couplers operating in the C-band. These mode-selective couplers were inscribed into a boro-aluminosilicate photonic chip using the femtosecond laser direct-write technique. Horizontally and vertically written two-core couplers are shown to allow for the multiplexing of the LP11a and LP11b spatial modes of an optical fiber, respectively, with excellent mode extinction ratios (25-37 + dB) and low loss (~1 dB) between 1500...[Show more]

CollectionsANU Research Publications
Date published: 2014-12-01
Type: Journal article
Source: Optics Express
DOI: 10.1364/OE.22.029855
Access Rights: Open Access


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