Mach-Zehnder electro-optic modulator based on epitaxial Ba 0.7Sr0.3TiO3 thin films

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • D. Y. Wang
  • K. P. Lor
  • K. K. Chung
  • H. L W Chan
  • C. L. Choy

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)109-114
Journal / PublicationFerroelectrics
Volume357
Issue number1 PART 3
Publication statusPublished - 2007

Conference

Title5th Asian Meeting on Ferroelectricity, AMF-5
PlaceJapan
CityNoda
Period3 - 7 September 2006

Abstract

Epitaxial Ba0.7Sr0.3TiO3 (BST) thin films were deposited on MgO (001) single crystal substrates using pulsed laser deposition. The bidimensional structure of a rib-type Mach-Zehnder electro-optic modulator was designed using the effective index method. A Mach-Zehnder electro-optic modulator based on BST/MgO was fabricated using standard photolithography and reactive ion etching techniques. A single mode near-field output pattern was observed using an end-fire coupling method. Optical modulation was successfully demonstrated. The half-wave voltage Vπ was found to be 60 V and the effective electro-optic coefficient was calculated to be rceff = 27.0 10-12 m/V at a wavelength of 1550 nm.

Research Area(s)

  • BST, Electro-optic, Mach-Zehnder modulator

Citation Format(s)

Mach-Zehnder electro-optic modulator based on epitaxial Ba 0.7Sr0.3TiO3 thin films. / Wang, D. Y.; Lor, K. P.; Chung, K. K.; Chan, H. P.; Chiang, K. S.; Chan, H. L W; Choy, C. L.

In: Ferroelectrics, Vol. 357, No. 1 PART 3, 2007, p. 109-114.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review