High index contrast passive potassium double tungstate waveguides

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

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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 languageEnglish
Pages (from-to)629-638
Number of pages10
JournalOptical materials express
Volume8
Issue number3
DOIs
Publication statusPublished - 1 Mar 2018

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Potassium
Waveguides
Refractive index
Focused ion beams
Adhesives
Wavelength
tungstate

Cite this

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High index contrast passive potassium double tungstate waveguides. / Sefunc, Mustafa Akin; Segerink, Frans B.; García-Blanco, Sonia M. (Corresponding Author).

In: Optical materials express, Vol. 8, No. 3, 01.03.2018, p. 629-638.

Research output: Contribution to journalArticleAcademicpeer-review

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