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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 21 — Nov. 1, 2010
  • pp: 3613–3615

Thermo-optically tunable silicon photonic crystal light modulator

Yonghao Cui, Ke Liu, Duncan L. MacFarlane, and Jeong-Bong Lee  »View Author Affiliations


Optics Letters, Vol. 35, Issue 21, pp. 3613-3615 (2010)
http://dx.doi.org/10.1364/OL.35.003613


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Abstract

We designed, fabricated, and characterized a thermo-optically tunable compact ( 10 μm × 10 μm ) silicon photonic crystal (PhC) light modulator that operates at around 1.55 µm for TE polarization. The operational principle of the device is the modulation of the cutoff frequency in a silicon-based line defect PhC. The cutoff frequency is shifted because of the thermo-optic tuning of the silicon refractive index, which is realized by localized heating on the PhC. The modulator is formed by a triangular lattice array of cylindrical air holes on a silicon-on-insulator wafer. Optical characterization was carried out, and the result clearly showed thermo-optic tuning of the cutoff frequency at around 1.55 µm .

© 2010 Optical Society of America

OCIS Codes
(230.4110) Optical devices : Modulators
(230.5298) Optical devices : Photonic crystals

ToC Category:
Optical Devices

History
Original Manuscript: June 25, 2010
Revised Manuscript: August 21, 2010
Manuscript Accepted: September 15, 2010
Published: October 21, 2010

Citation
Yonghao Cui, Ke Liu, Duncan L. MacFarlane, and Jeong-Bong Lee, "Thermo-optically tunable silicon photonic crystal light modulator," Opt. Lett. 35, 3613-3615 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-21-3613


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