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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 3 — Feb. 4, 2008
  • pp: 1423–1430

Strain induced tunable wavelength filters based on flexible polymer waveguide Bragg reflector

Kyung-Jo Kim, Jun-Kyu Seo, and Min-Cheol Oh  »View Author Affiliations

Optics Express, Vol. 16, Issue 3, pp. 1423-1430 (2008)

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A tunable wavelength filter is demonstrated by imposing a strain on a polymeric Bragg reflection waveguide fabricated on a flexible substrate. The highly elastic property of flexible polymer device enables much wider tuning than the silica fiber. To produce a uniform grating pattern on a flexible plastic substrate, a post lift-off process along with an absorbing layer is incorporated. The flexible Bragg reflector shows narrow bandwidth, which is convincing the uniformity of the grating structure fabricated on plastic film. By stretching the flexible polymer device, the Bragg reflection wavelength is tuned continuously up to 45 nm for the maximum strain of 31,690 με, which is determined by the elastic expansion limit of waveguide polymer. From the linear wavelength shift proportional to the strain, the photoelastic coefficient of the ZPU polymer is found.

© 2008 Optical Society of America

OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(230.3120) Optical devices : Integrated optics devices
(230.7408) Optical devices : Wavelength filtering devices
(130.5460) Integrated optics : Polymer waveguides

ToC Category:
Optical Devices

Original Manuscript: December 17, 2007
Revised Manuscript: January 17, 2008
Manuscript Accepted: January 17, 2008
Published: January 18, 2008

Kyung-Jo Kim, Jun-Kyu Seo, and Min-Cheol Oh, "Strain induced tunable wavelength filters based on flexible polymer waveguide Bragg reflector," Opt. Express 16, 1423-1430 (2008)

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  1. G. Scott Glaesemann, JamesA. Smith, Donald A. Clark, and Renie Johnson, "Measuring thermal and mechanical stresses on optical fiber in a DC module using Fiber Bragg Gratings," J. Lightwave Technol. 23, 3461-3468 (2005). [CrossRef]
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  17. ZPU polymer is available from ChemOptics Co., Yusong, Daejeon, 305-380, South Korea.
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