Femtosecond Laser Written Depressed-Cladding Waveguide 2 × 2, 1 × 2 and 3 × 3 Directional Couplers in Tm:YAG Crystal.

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ID: 86734
2019
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Abstract
Ion-doped crystal-based compact devices capable of beam splitting and coupling are enthralling for a broad range of classical and quantum integrated photonics applications. In this work, we report on the fabrication of depressed-cladding waveguide 2D 2 × 2, 1 × 2 and 3D 3 × 3 directional couplers in Tm 3 + :YAG crystal by femtosecond laser writing. The performances of the couplers are characterized at 810 nm, showing single-mode guidance, polarization independence, finely matched splitting ratios. These results open up new opportunities in the beneficial fabrication of 3D circuits and devices in crystals.
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skryabin2019femtosecondmicromachines Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Skryabin, Nikolay;Kalinkin, Alexander;Dyakonov, Ivan;Kulik, Sergei;
Journal micromachines
Year 2019
DOI
E1
URL
Keywords
crystal depressed-cladding waveguide directional coupler femtosecond laser writing integrated photonics, quantum memory yttrium aluminum garnet

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