Three-dimensional ultra-broadband integrated tapered mode multiplexers

Simon Gross*, Nicolas Riesen, John D. Love, Michael J. Withford

*Corresponding author for this work

Research output: Contribution to journalArticle

109 Citations (Scopus)

Abstract

The demonstration of a three-dimensional tapered mode-selective coupler in a photonic chip is reported. This waveguide-based, ultra-broadband mode multiplexer was fabricated using the femtosecond laser direct-write technique in a boro-aluminosilicate glass chip. A three-core coupler has been shown to enable the multiplexing of the LP01, LP11a and LP11b spatial modes of a multimode waveguide, across an extremely wide bandwidth exceeding 400 nm, with low loss, high mode extinction ratios and negligible mode crosstalk. Linear cascades of such devices on a single photonic chip have the potential to become a definitive technology in the realization of broadband mode-division multiplexing for increasing optical fiber capacity. A waveguide-based ultra-broadband mode-multiplexer, fabricated using the femtosecond laser direct-write technique, is presented. The three-core coupler is shown to enable the multiplexing of the LP01, LP11a and LP11b spatial modes of a multimode waveguide, across an extremely wide bandwidth exceeding 400 nm, with low loss, high mode-extinction ratios and negligible mode crosstalk.

Original languageEnglish
Pages (from-to)L81-L85
Number of pages5
JournalLaser and Photonics Reviews
Volume8
Issue number5
DOIs
Publication statusPublished - Sep 2014

Keywords

  • Glass waveguides
  • Integrated optics devices
  • Mode multiplexers
  • Mode-division multiplexing
  • Optical interconnects
  • Space-division multiplexing
  • Tapered couplers
  • Ultrafast material processing

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