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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 2, Iss. 10 — Oct. 10, 2004
  • pp: 586–589

The effect of conductor loss on half-wave voltage and modulation bandwidth of electro-optic modulators

Zilong Liu and Daqing Zhu  »View Author Affiliations


Chinese Optics Letters, Vol. 2, Issue 10, pp. 586-589 (2004)


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Abstract

In this paper, we theoretically deduce the expressions of half-wave voltage and 3-dB modulation bandwidth in which conductor loss is taken into account. The results suggest that it will affect the theoretical values of half-wave voltage and bandwidth as well as the optimized electrode's dimension whether considering the conductor loss or not. As an example, we present a Mach-Zehnder (MZ) type polymer waveguide amplitude modulator. The half-wave voltage increases by 1 V and the 3-dB bandwidth decreases by 30% when the conductor loss is taken into account. Besides, the effects of impedance mismatching and velocity mismatching between microwave and light wave on the half-wave voltage, and 3-dB bandwidth are discussed.

© 2005 Chinese Optics Letters

OCIS Codes
(230.2090) Optical devices : Electro-optical devices
(250.0250) Optoelectronics : Optoelectronics
(250.7360) Optoelectronics : Waveguide modulators

Citation
Zilong Liu and Daqing Zhu, "The effect of conductor loss on half-wave voltage and modulation bandwidth of electro-optic modulators," Chin. Opt. Lett. 2, 586-589 (2004)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-2-10-586

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