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Optics Express

Optics Express

  • Editor: Martijn de Sterke
  • Vol. 16, Iss. 20 — Sep. 29, 2008
  • pp: 15546–15552

Compact plasmonic variable optical attenuator

Kristjan Leosson, Tiberiu Rosenzveig, Petur Gordon Hermannsson, and Alexandra Boltasseva  »View Author Affiliations


Optics Express, Vol. 16, Issue 20, pp. 15546-15552 (2008)
http://dx.doi.org/10.1364/OE.16.015546


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Abstract

We demonstrate plasmonic nanowire-based thermo-optic variable optical attenuators operating in the 1525-1625 nm wavelength range. The devices have a footprint as low as 1 mm, extinction ratio exceeding 40 dB, driving voltage below 3 V, and full modulation bandwidth of 1 kHz. The polarization dependent loss is shown to be critically dependent on the nanowire geometry but devices with polarization-dependent loss as low as ±2.5 dB PDL over most of the attenuation range have been fabricated. We propose an even more compact device design to reduce insertion loss to approximately 1 dB.

© 2008 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(230.3120) Optical devices : Integrated optics devices
(230.7390) Optical devices : Waveguides, planar
(240.6680) Optics at surfaces : Surface plasmons

ToC Category:
Integrated Optics

History
Original Manuscript: August 7, 2008
Revised Manuscript: September 12, 2008
Manuscript Accepted: September 13, 2008
Published: September 17, 2008

Citation
Kristjan Leosson, Tiberiu Rosenzveig, Petur G. Hermannsson, and Alexandra Boltasseva, "Compact plasmonic variable optical attenuator," Opt. Express 16, 15546-15552 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-20-15546


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References

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