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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 3 — Feb. 9, 2004
  • pp: 442–448

Extinction-ratio-independent method for chirp measurements of Mach-Zehnder modulators

N. Courjal, J. M. Dudley, and H. Porte  »View Author Affiliations


Optics Express, Vol. 12, Issue 3, pp. 442-448 (2004)
http://dx.doi.org/10.1364/OPEX.12.000442


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Abstract

The authors describe a general method to extract the frequency chirping of Mach-Zehnder modulators based on direct measurements of the output spectrum. This method is independent of the modulator extinction ratio and allows measurement of the intrinsic chirp parameter to an accuracy of 5%.

© 2004 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(130.1750) Integrated optics : Components
(130.3120) Integrated optics : Integrated optics devices

ToC Category:
Research Papers

History
Original Manuscript: November 25, 2003
Revised Manuscript: January 28, 2004
Published: February 9, 2004

Citation
N. Courjal, J. Dudley, and H. Porte, "Extinction-ratio-independent method for chirp measurements of Mach-Zehnder modulators," Opt. Express 12, 442-448 (2004)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-12-3-442


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References

  1. S.K Kim, O. Mizuhara, Y.K. Park, L.D. Tzeng, Y.S. Kim, and J. Jeong, " Theoritical and experimental study of 10 Gb/s transmission performance using 1.55 m LiNbO3-Based transmitters with adjustable extinction ration and chirp," J. Lightwave Technol. 7, 1320-1325 (1999).
  2. L.S. Yan, Q. Yu, A.E. Willner, and Y. Shi, �?? Measurement of the chirp parameter of electro-optic modulators by comparison of the phase between the two sidebands,�?? Opt. Lett. 28, 1114-1116 (2003). [CrossRef] [PubMed]
  3. S. Oikawa, T. Kawanishi, and M. Izutsu, �??Measurement of chirp parameters and halfwave voltages of Mach-Zehnder-type optical modulators by using a small signal operation,�?? IEEE Photonics Technol. Lett. 15, 682-684 (2003). [CrossRef]
  4. N. Courjal and H. Porte, �??Method for measuring frequency chirping in external Mach-Zehnder modulators,�?? presented at European Conference on Integrated Optics, ECIO'03, Prague, Czek Republic, 2- 4 April 2003
  5. H. Kim and A.H. Gnauck, �??Chirp characteristics of Dual-drive Mach-Zehnder modulator with a finite DC extinction ratio,�?? IEEE Photonics Technol. Lett. 14, 298-301 (2002). [CrossRef]
  6. F. Koyama and K. Iga, "Frequency chirping in external modulators," J. Lightwave Technol. 6, 87-93 (1988). [CrossRef]
  7. F. Devaux, Y. Sorel, and J.F. Kerdiles, "Simple measurement of fiber dispersion and of chirp parameter of intensity modulated light emitter," J. Lightwave Technol. 11, 1937-1940 (1993). [CrossRef]

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