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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 6,
  • Issue 2,
  • pp. 27-32
  • (2002)

Ti:LiNbO3 2x2 Optical Add/Drop Multiplexers Utilizing Acousto-Optic Effect

Open Access Open Access

Abstract

An integrated optical 2<TEX>$\times$</TEX>2 add/drop multiplexer in X-cut, Y-propagating LiNbO<TEX>$_3$</TEX> 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.

© 2002 Optical Society of Korea

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