Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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Ti:LiNbO3 2×2 Optical Add/Drop Multiplexers Utilizing Acousto-Optic Effect

  • Jung, Hong-Sik (Dept. of Electronic and Computer Engineering, Graduate School Hong-Ik University) ;
  • Jung, Gi-Jo (Dept. of Electronic and Computer Engineering, Graduate School Hong-Ik University) ;
  • Kim, Jung-Hee (Dept. of Electronic and Computer Engineering, Graduate School Hong-Ik University)
  • Received : 2001.12.31
  • Published : 2002.06.01
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Abstract

An integrated optical 2$\times$2 add/drop multiplexer in X-cut, Y-propagating LiNbO$_3$ has been demonstrated. The device consists of passive polarization splitters and acousto-optical mode converters with weighted coupling utilizing tapered acoustical directional couplers; their specific design and properties are discussed. The insertion loss has been measured to be about -8.16 ㏈ and -8.6 ㏈ for TE and TM polarizations, respectively. The device shows a 3 ㏈ bandwidth of 2.3 nm, a tuning rate 8.34 nm/MHz around λ = 1554 nm, and a sidelobe suppression of about 14.5 ㏈. Optimum operation is achieved with a RF drive power of about 43 ㎽. Multi-wavelength operation has been demonstrated.

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References

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Cited by

  1. 2×2 Ti:LiNbO3optical add/drop multiplexers utilizing tilted film-loaded SAW waveguides vol.14, pp.6, 2003, https://doi.org/10.3807/KJOP.2003.14.6.657