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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 24 — Dec. 2, 2013
  • pp: 29808–29817

Low-loss sharp bends in polymer waveguides enabled by the introduction of a thin metal layer

Mustafa Akin Sefunc, Markus Pollnau, and Sonia M. García-Blanco  »View Author Affiliations

Optics Express, Vol. 21, Issue 24, pp. 29808-29817 (2013)

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Embodying a thin metallic layer underneath the core of a sharply bent polymer waveguide is shown in this work to considerably reduce the total losses of both the quasi-transverse-electric and quasi-transverse-magnetic modes. The computational results show a total loss as low as ~0.02 dB/90° for the quasi-transverse-electric mode for radii between 6 and 13 µm at the wavelength of 1.55 µm, which corresponds to a 10-fold improvement over the purely dielectric counterpart. The radii range exhibiting such low total loss can be tuned by properly selecting the parameters of the structure. For the quasi-transverse-magnetic mode, the metal layer reduces the total losses modestly for radii ranging from 3 to 10 µm. Simulation results for different structural parameters are presented.

© 2013 Optical Society of America

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.2790) Integrated optics : Guided waves
(160.3900) Materials : Metals
(240.6680) Optics at surfaces : Surface plasmons
(250.5460) Optoelectronics : Polymer waveguides
(250.5403) Optoelectronics : Plasmonics

ToC Category:
Integrated Optics

Original Manuscript: September 26, 2013
Revised Manuscript: November 15, 2013
Manuscript Accepted: November 17, 2013
Published: November 25, 2013

Mustafa Akin Sefunc, Markus Pollnau, and Sonia M. García-Blanco, "Low-loss sharp bends in polymer waveguides enabled by the introduction of a thin metal layer," Opt. Express 21, 29808-29817 (2013)

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