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Optics Letters

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  • 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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References

  1. C. Langrock, S. Kumar, J. E. McGeehan, A. E. Willner, and M. M. Fejer, J. Lightwave Technol. 24, 2597 (2006). [CrossRef]
  2. M. H. Chou, I. Brener, M. M. Fejer, E. E. Chaban, and S. B. Christman, IEEE Photon. Technol. Lett. 11, 653 (1999). [CrossRef]
  3. J. Wang, J. Sun, C. Luo, and Q. Sun, Opt. Express 13, 7405 (2005). [CrossRef] [PubMed]
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  7. J. Wang, J. Sun, X. Zhang, D. Huang, and M. M. Fejer, in Proceedings of the Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference (IEEE, 2008), paper JTh 33. [PubMed]

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