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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 9 — May. 2, 2005
  • pp: 3259–3263

Fabrication and characterization of hollow waveguide optical switch with variable air core

Chang-Hwan Bae and Fumio Koyama  »View Author Affiliations

Optics Express, Vol. 13, Issue 9, pp. 3259-3263 (2005)

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We demonstrate a novel hollow waveguide optical switch composed of an multi-mode interference (MMI) coupler with a variable air core. The numerical simulation and experiment of the proposed optical switch is carried out for investigating the operation of the switch. Switching operation can be obtained by the mechanical displacement of the air core of an MMI hollow waveguide. A hollow waveguide consists of Au mirrors deposited on two GaAs substrates for optical confinement. The measured result shows a possibility of switching of about 85% optical power fraction with a switch length of 1.1 mm and small displacement (ΔDcore=3 µm) of an air core thickness. The measured insertion losses of a 1.1 mm long hollow waveguide with 12 and 9 µm air core are 5.4 dB and 5.7 dB respectively.

© 2005 Optical Society of America

OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.7380) Optical devices : Waveguides, channeled

ToC Category:
Research Papers

Original Manuscript: March 15, 2005
Revised Manuscript: April 9, 2005
Published: May 2, 2005

Chang-Hwan Bae and Fumio Koyama, "Fabrication and characterization of hollow waveguide optical switch with variable air core," Opt. Express 13, 3259-3263 (2005)

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