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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 19 — Sep. 15, 2008
  • pp: 14421–14428

A wavelength-selective add-drop switch using silicon microring resonator with a submicron-comb electrostatic actuator

Kazunori Takahashi, Yoshiaki Kanamori, Yasuo Kokubun, and Kazuhiro Hane  »View Author Affiliations

Optics Express, Vol. 16, Issue 19, pp. 14421-14428 (2008)

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Electrostatic comb-drive micro actuator with submicron comb fingers was connected to silicon microring resonator to consist a wavelength-selective add-drop switch at 1.5µm wavelength with variable coupling mechanism. A 500nm wide 260nm thick 63.4µm long silicon microring waveguide was suspended in air with low-loss suspension arms. The air gap between the microring and the input/output waveguides was adjusted by the voltage applied to the comb actuator to vary the coupling efficiency. Transmittance from the input port to a drop port was varied 32.9dB by applying the voltages from 0V to 28.2V. At 28.2V, transmittance from the input port to a through port decreased by 7.83dB from that at 0V, and 55% of the intensity was transmitted to the drop port. The full-width-half-maximum bandwidth of the dropped light was 0.5nm, corresponding to a Q-value of 3150.

© 2008 Optical Society of America

OCIS Codes
(250.5300) Optoelectronics : Photonic integrated circuits
(230.4685) Optical devices : Optical microelectromechanical devices
(130.7408) Integrated optics : Wavelength filtering devices

ToC Category:
Integrated Optics

Original Manuscript: July 23, 2008
Revised Manuscript: August 25, 2008
Manuscript Accepted: August 26, 2008
Published: August 29, 2008

Kazunori Takahashi, Yoshiaki Kanamori, Yasuo Kokubun, and Kazuhiro Hane, "A wavelength-selective add-drop switch using silicon microring resonator with a submicron-comb electrostatic actuator," Opt. Express 16, 14421-14428 (2008)

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