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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 4 — Feb. 15, 2012
  • pp: 551–553

UWB monocycle pulse generation using two-photon absorption in a silicon waveguide

Yang Yue, Hao Huang, Lin Zhang, Jian Wang, Jeng-Yuan Yang, Omer F. Yilmaz, Jacob S. Levy, Michal Lipson, and Alan E. Willner  »View Author Affiliations


Optics Letters, Vol. 37, Issue 4, pp. 551-553 (2012)
http://dx.doi.org/10.1364/OL.37.000551


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Abstract

We propose and experimentally demonstrate ultrawideband monocycle pulse generation using nondegenerate two-photon absorption in a silicon waveguide. The free-carrier absorption induced pulse tail at the rising edge of inverted probe pulse is largely compensated by the overlapped pump pulse and results in a symmetric negative monocycle pulse. A 143ps Gaussian monocycle pulse is successfully obtained with a 131.7% fractional 10dB bandwidth using a 68ps pulsed pump. The 10dB bandwidth and center frequency of the RF spectrum for the generated monocycle pulse can be largely tuned using an optical delay line. An operational bandwidth of 30nm is demonstrated experimentally with stable performance, and larger optical bandwidth is expected.

© 2012 Optical Society of America

OCIS Codes
(130.4310) Integrated optics : Nonlinear
(230.7370) Optical devices : Waveguides
(350.4010) Other areas of optics : Microwaves
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: December 20, 2011
Revised Manuscript: December 20, 2011
Manuscript Accepted: December 21, 2011
Published: February 8, 2012

Citation
Yang Yue, Hao Huang, Lin Zhang, Jian Wang, Jeng-Yuan Yang, Omer F. Yilmaz, Jacob S. Levy, Michal Lipson, and Alan E. Willner, "UWB monocycle pulse generation using two-photon absorption in a silicon waveguide," Opt. Lett. 37, 551-553 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-4-551


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