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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 16 — Aug. 15, 2008
  • pp: 1804–1806

Optical phase erasure and its application to format conversion through cascaded second-order processes in periodically poled lithium niobate

Jian Wang, Junqiang Sun, Xinliang Zhang, Dexiu Huang, and M. M. Fejer  »View Author Affiliations


Optics Letters, Vol. 33, Issue 16, pp. 1804-1806 (2008)
http://dx.doi.org/10.1364/OL.33.001804


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Abstract

We describe a new optical phase erasure characteristic of periodically poled lithium niobate (PPLN) by using cascaded second-harmonic generation and difference-frequency generation with the signal set at the quasi-phase-matching wavelength. A simple analytical expression is derived clearly explaining the operation principle. It is interesting that the optical phase erasure feature enables an all-optical format conversion from carrier-suppressed return to zero (CSRZ) to return to zero (RZ). We experimentally and theoretically demonstrate a PPLN-based 40 Gbits s all-optical CSRZ-to-RZ format conversion. Moreover, tunable and multicasting CSRZ-to-RZ format conversions are also verified in the experiment.

© 2008 Optical Society of America

OCIS Codes
(070.4560) Fourier optics and signal processing : Data processing by optical means
(130.3730) Integrated optics : Lithium niobate
(190.4360) Nonlinear optics : Nonlinear optics, devices
(230.1150) Optical devices : All-optical devices

ToC Category:
Optical Devices

History
Original Manuscript: March 17, 2008
Revised Manuscript: June 26, 2008
Manuscript Accepted: June 30, 2008
Published: August 5, 2008

Citation
Jian Wang, Junqiang Sun, Xinliang Zhang, Dexiu Huang, and M. M. Fejer, "Optical phase erasure and its application to format conversion through cascaded second-order processes in periodically poled lithium niobate," Opt. Lett. 33, 1804-1806 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-16-1804

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