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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 17 — Aug. 20, 2007
  • pp: 10690–10698

Cutoff modulator with tunable filtering characteristic based on the W type waveguide

Hui Yu, Xiaoqing Jiang, Wei Qi, Jianyi Yang, and Minghua Wang  »View Author Affiliations

Optics Express, Vol. 15, Issue 17, pp. 10690-10698 (2007)

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Utilizing the cutoff characteristic of zero-order TE mode of the W type waveguide, we propose a cutoff modulator with tunable filtering characteristic in this paper. Simulation results show that: for the modulator based on GaAlAs/GaAs epitaxial layers, its cutoff wavelength can be shifted from 1.62 µm to 1.42 µm when the refractive index of the core layer is decreased by -0.01 in the modulation region of 800 µm; and the extinction ration at the wavelength of 1.55 µm reaches 40 dB. Compared with other traditional cutoff modulators, it has the advantages of more compact size, simpler structure and the potential for high intensity integration.

© 2007 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(130.0130) Integrated optics : Integrated optics
(250.7360) Optoelectronics : Waveguide modulators

ToC Category:

Original Manuscript: May 21, 2007
Revised Manuscript: July 31, 2007
Manuscript Accepted: August 1, 2007
Published: August 8, 2007

Hui Yu, Xiaoqing Jiang, Wei Qi, Jianyi Yang, and Minghua Wang, "Cutoff modulator with tunable filtering characteristic based on the W type waveguide," Opt. Express 15, 10690-10698 (2007)

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