Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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2×2 Ti:LiNbO3 Waveguide Digital Optical Switches

  • Kim Seung-Jae (Dept. of Electronic & Computer Engineering, Graduate School, Hong-Ik University) ;
  • Jung, Hong-Sik (Dept. of Electronic & Computer Engineering, Graduate School, Hong-Ik University) ;
  • Lee, Han-Young (Optical Telecommunication Research Center, Korea Electronics Technology Institute)
  • Received : 2003.09.23
  • Published : 2003.12.01
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Abstract

We propose and demonstrate a novel polarization- and wavelength-independent digital electrooptic switch in $Ti:LiNbO_3$ with switching voltage of ${\pm}$32V at $1.55{\mu}m$ wavelength. This $2{\times}2$ integrated optic switch is characterized by a step-like response to the applied voltage. Switching is achieved through adiabatic mode evolution in an asymmetric waveguide junction. An average insertion loss of ∼4.5dB and polarization independent switching with average crosstalk of -12dB are achieved.

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References

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