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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 24 — Nov. 28, 2005
  • pp: 9916–9921

Integrated microfluidic variable optical attenuator

Lin Zhu, Yanyi Huang, and Amnon Yariv  »View Author Affiliations

Optics Express, Vol. 13, Issue 24, pp. 9916-9921 (2005)

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We fabricate and measure a microfluidic variable optical attenuator which consists of an optical waveguide integrated with a microfluidic channel. An opening is introduced in the upper cladding of the waveguide in order to facilitate the alignment and bonding of the microfluidic channel. By using fluids with different refractive indices, the optical output power is gradually attenuated. We obtain a maximum attenuation of 28 dB when the fluid refractive index changes from 1.557 to 1.584.

© 2005 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Research Papers

Original Manuscript: October 24, 2005
Revised Manuscript: October 24, 2005
Published: November 28, 2005

Lin Zhu, Yanyi Huang, and Amnon Yariv, "Integrated microfluidic variable optical attenuator," Opt. Express 13, 9916-9921 (2005)

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