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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 3,
  • Issue 1,
  • pp. 49-52
  • (2005)

Novel electroabsorption modulator monolithically integrated with spot-size converter

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Abstract

A novel 1.55-?m spot-size converter integrated electroabsorption modulator was designed with conventional photolithography and chemical wet etching process. A ridge double-core structure was employed for the modulator, and a buried ridge double-core structure was incorporated for the spot-size converter. The passive waveguide was optically combined with a laterally tapered active waveguide to control the mode size. The figure of merit is 4.1667 dB/V(/100 ?m) and the beam divergence angles in the horizontal and vertical directions were as small as 11.2 deg. and 13.0 deg., respectively.

© 2005 Chinese Optics Letters

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