High index contrast passive potassium double tungstate waveguides

Mustafa Sefunc; Frans B. Segerink; Sonia M. García-Blanco

doi:10.1364/OME.8.000629

High index contrast passive potassium double tungstate waveguides

Mustafa Sefunc, Frans B. Segerink, Sonia M. García-Blanco (Corresponding Author)

Optical Sciences

Research output: Contribution to journal › Article › Academic › peer-review

9 Citations (Scopus)

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Abstract

High-refractive-index-contrast potassium double tungstate waveguides have been experimentally demonstrated. A bulk KY(WO₄)₂ layer was successfully bonded onto a lower refractive index carrier using a UV curable optical adhesive and polished down to the thickness of 2.4 μm. A set of rib waveguides with ~2 μm width and 0.85 μm slab thickness were fabricated on the thin transferred KY(WO₄)₂ layer by focused-ion-beam milling. The upper-limit of the propagation losses of the fabricated waveguides is estimated to be 1.5 dB/cm at the wavelength of 1.55 μm using the Fabry-Perot method.

Original language	English
Pages (from-to)	629-638
Number of pages	10
Journal	Optical materials express
Volume	8
Issue number	3
DOIs	https://doi.org/10.1364/OME.8.000629
Publication status	Published - 1 Mar 2018

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10.1364/OME.8.000629Licence: CC BY

Sefunc2018highFinal published version, 2.92 MBLicence: CC BY

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AU - Segerink, Frans B.

AU - García-Blanco, Sonia M.

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N2 - High-refractive-index-contrast potassium double tungstate waveguides have been experimentally demonstrated. A bulk KY(WO4)2 layer was successfully bonded onto a lower refractive index carrier using a UV curable optical adhesive and polished down to the thickness of 2.4 μm. A set of rib waveguides with ~2 μm width and 0.85 μm slab thickness were fabricated on the thin transferred KY(WO4)2 layer by focused-ion-beam milling. The upper-limit of the propagation losses of the fabricated waveguides is estimated to be 1.5 dB/cm at the wavelength of 1.55 μm using the Fabry-Perot method.

AB - High-refractive-index-contrast potassium double tungstate waveguides have been experimentally demonstrated. A bulk KY(WO4)2 layer was successfully bonded onto a lower refractive index carrier using a UV curable optical adhesive and polished down to the thickness of 2.4 μm. A set of rib waveguides with ~2 μm width and 0.85 μm slab thickness were fabricated on the thin transferred KY(WO4)2 layer by focused-ion-beam milling. The upper-limit of the propagation losses of the fabricated waveguides is estimated to be 1.5 dB/cm at the wavelength of 1.55 μm using the Fabry-Perot method.

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High index contrast passive potassium double tungstate waveguides

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