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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 15 — Aug. 1, 2013
  • pp: 2760–2762

Agile multicasting based on cascaded χ(2) nonlinearities in a step-chirped periodically poled lithium niobate

Meenu Ahlawat, Ameneh Bostani, Amirhossein Tehranchi, and Raman Kashyap  »View Author Affiliations


Optics Letters, Vol. 38, Issue 15, pp. 2760-2762 (2013)
http://dx.doi.org/10.1364/OL.38.002760


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Abstract

We experimentally demonstrate the possibility of agile multicasting for wavelength division multiplexing (WDM) networks, of a single-channel to two and seven channels over the C band, also extendable to S and L bands. This is based on cascaded χ(2) nonlinear mixing processes, namely, second-harmonic generation (SHG)–sum-frequency generation (SFG) and difference-frequency generation (DFG) in a 20-mm-long step-chirped periodically poled lithium niobate crystal, specially designed and fabricated for a 28-nm-wide SH–SF bandwidth centered at around 1.55 μm. The multiple idlers are simultaneously tuned by detuning the pump wavelengths within the broad SH–SF bandwidth. By selectively tuning the pump wavelengths over less than 10 and 6 nm, respectively, multicasting into two and seven idlers is successfully achieved across 70 WDM channels within the 50 GHz International Telecommunication Union grid spacing.

© 2013 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4360) Nonlinear optics : Nonlinear optics, devices
(060.4255) Fiber optics and optical communications : Networks, multicast
(130.7405) Integrated optics : Wavelength conversion devices

ToC Category:
Nonlinear Optics

History
Original Manuscript: April 26, 2013
Revised Manuscript: June 26, 2013
Manuscript Accepted: June 28, 2013
Published: July 25, 2013

Citation
Meenu Ahlawat, Ameneh Bostani, Amirhossein Tehranchi, and Raman Kashyap, "Agile multicasting based on cascaded χ(2) nonlinearities in a step-chirped periodically poled lithium niobate," Opt. Lett. 38, 2760-2762 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-15-2760


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