Compact Bends for Achieving Higher Integration Densities for LiNbO Waveguides

A new waveguide platform is demonstrated that allows the bend radii to be substantially decreased for titanium-diffused lithium-niobate (LiNbO 3 ) waveguides using vertically integrated arsenic-trisulfide (As 2 S 3 ) overlay waveguides. Power is transferred from a Ti-diffused waveguide into the over...

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Veröffentlicht in:IEEE photonics technology letters 2009-05, Vol.21 (9), p.557-559
Hauptverfasser: Solmaz, M.E., Adams, D.B., Grover, S., Tan, W.-C., Xia, X., Eknoyan, O., Madsen, C.K.
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container_end_page 559
container_issue 9
container_start_page 557
container_title IEEE photonics technology letters
container_volume 21
creator Solmaz, M.E.
Adams, D.B.
Grover, S.
Tan, W.-C.
Xia, X.
Eknoyan, O.
Madsen, C.K.
description A new waveguide platform is demonstrated that allows the bend radii to be substantially decreased for titanium-diffused lithium-niobate (LiNbO 3 ) waveguides using vertically integrated arsenic-trisulfide (As 2 S 3 ) overlay waveguides. Power is transferred from a Ti-diffused waveguide into the overlay waveguide using tapers, guided by the As 2 S 3 waveguide through the S-bend region and transferred back into another Ti-diffused waveguide. This structure also behaves like a polarization beam splitter. We present simulation results as well as measurements to show the feasibility of achieving low loss and reduced bend radii for electrooptic waveguides.
doi_str_mv 10.1109/LPT.2009.2014569
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subjects Electrooptic devices
integrated optics
optical device fabrication
Optical devices
Optical films
Optical losses
optical planar waveguide components
Optical polarization
Optical refraction
Optical ring resonators
Optical variables control
Optical waveguides
Refractive index
Titanium
title Compact Bends for Achieving Higher Integration Densities for LiNbO Waveguides
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