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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 17 — Aug. 26, 2013
  • pp: 19538–19543

Demonstration of tunable optical delay lines based on apodized grating waveguides

Saeed Khan and Sasan Fathpour  »View Author Affiliations

Optics Express, Vol. 21, Issue 17, pp. 19538-19543 (2013)

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High-speed and tunable integrated optical delay lines are demonstrated based on silicon grating waveguides apodized by the super-Gaussian function. The submicron channel waveguides with inward-apodized gratings are fabricated by deep-ultraviolet optical lithography. Characterization of the compact delay lines shows that they offer true-time delays as long as 132 ps, tuning range of ~86 ps, and a minimum bit rate of ~13 Gb/s. For lower bit rates, delays as high as 220 ps and tuning range of 174 ps are feasible.

© 2013 OSA

OCIS Codes
(250.0250) Optoelectronics : Optoelectronics
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:

Original Manuscript: June 21, 2013
Revised Manuscript: July 28, 2013
Manuscript Accepted: August 2, 2013
Published: August 12, 2013

Saeed Khan and Sasan Fathpour, "Demonstration of tunable optical delay lines based on apodized grating waveguides," Opt. Express 21, 19538-19543 (2013)

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