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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 23, Iss. 3 — Mar. 1, 2005
  • pp: 1273–

Mach-Zehnder Modulator Arm-Length-Mismatch Measurement Technique

Kevin Geary, Seong-Ku Kim, Byoung-Joon Seo, and Harold R. Fetterman

Journal of Lightwave Technology, Vol. 23, Issue 3, pp. 1273- (2005)


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Abstract

This paper describes a robust measurement technique for determining the effective length mismatch of the two arms of a Mach-Zehnder modulator (MZM), based on its broad-band filter characteristics. The proposed method involves measuring the Vpi (lambda), n(lambda), and transfer function of a modulator at various externally applied bias points. This mismatch measurement technique is applied to a packaged polymer rib waveguide MZM, and it is shown that it has an arm-length mismatch of 1.9 µm. Poling-induced writing is then proposed as a fabrication technique that can consistently produce polymer MZMs with arm-length-mismatch values less than 2 µm.

© 2005 IEEE

Citation
Kevin Geary, Seong-Ku Kim, Byoung-Joon Seo, and Harold R. Fetterman, "Mach-Zehnder Modulator Arm-Length-Mismatch Measurement Technique," J. Lightwave Technol. 23, 1273- (2005)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-23-3-1273

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