Compact Bends for Achieving Higher Integration Densities for LiNbO$_{3}$ Waveguides Academic Article uri icon


  • A new waveguide platform is demonstrated that allows the bend radii to be substantially decreased for titanium- diffused lithium-niobate (LiNbO3) waveguides using vertically integrated arsenic-trisulfide (As2S3) overlay waveguides. Power is transferred from a Ti-diffused waveguide into the overlay waveguide using tapers, guided by the As2S3 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. © 2009 IEEE.

author list (cited authors)

  • Solmaz, M. E., Adams, D. B., Grover, S., Tan, W., Xia, X., Eknoyan, O., & Madsen, C. K.

citation count

  • 9

publication date

  • April 2009