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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 14 — Jul. 15, 2013
  • pp: 16570–16577

Slope efficiency and spurious-free dynamic range of silicon Mach-Zehnder modulator upon carrier depletion and injection effects

Xianshu Luo, Xiaoguang Tu, Junfeng Song, Lu Ding, Qing Fang, Tsung-Yang Liow, Mingbin Yu, and Guo-Qiang Lo  »View Author Affiliations


Optics Express, Vol. 21, Issue 14, pp. 16570-16577 (2013)
http://dx.doi.org/10.1364/OE.21.016570


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Abstract

We investigate the performances of a silicon PN-junction Mach-Zehnder modulator for analog application. The slope efficiency and spurious-free dynamic range (SFDR) of such a modulator upon carrier depletion and carrier injection effects are characterized and compared. Input RF frequency-dependence measurements show that the depletion-type modulator is usually with ~20 dB∙Hz2/3 higher SFDR comparing to the injection-type modulator, yet with an order-of-magnitude lower slope efficiency. For the depletion-type and injection-type modulators, the measured maximum SFDRs are respectively ~95 dB∙Hz2/3 and 75 dB∙Hz2/3, with maximum slope efficiency of 0.3 V−1 and 8 V−1. We numerically model the SFDR by using the experimentally extracted effective refractive index change, which shows good agreement with the measurements.

© 2013 OSA

OCIS Codes
(040.6040) Detectors : Silicon
(130.0130) Integrated optics : Integrated optics
(230.2090) Optical devices : Electro-optical devices
(230.4110) Optical devices : Modulators

ToC Category:
Detectors

History
Original Manuscript: October 23, 2012
Revised Manuscript: December 26, 2012
Manuscript Accepted: December 28, 2012
Published: July 2, 2013

Citation
Xianshu Luo, Xiaoguang Tu, Junfeng Song, Lu Ding, Qing Fang, Tsung-Yang Liow, Mingbin Yu, and Guo-Qiang Lo, "Slope efficiency and spurious-free dynamic range of silicon Mach-Zehnder modulator upon carrier depletion and injection effects," Opt. Express 21, 16570-16577 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-14-16570


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