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Optical waveguides structured with photoaligning polymers.
Journal article

Optical waveguides structured with photoaligning polymers.

  • Stump A Centre Suisse d'Electronique et de Microtechnique CSEM SA, Untere Gründlistrasse 1, 6055 Alpnach, Switzerland. andrin.stump@csem.ch
  • Gubler U
  • Bosshard C
  • 2005-06-29
Published in:
  • Optics letters. - 2005
English We present a novel fast fabrication method for making optical waveguides by using a photoaligning and a liquid-crystal polymer. A difference in the refractive indices in the core and cladding regions is achieved by use of polarized UV light to align the polymer chains differently. A refractive-index difference of Deltan = 0.07 was achieved. The propagation loss in a channel waveguide is 4 dB/cm at a wavelength of 1.55 microm. The fabrication method has only a few processing steps and yields short fabrication times. The waveguide structures offer possibilities for generating devices with new applications related to the polarization of the guided light.
Language
  • English
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closed
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https://sonar.ch/global/documents/61621
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