Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 26,
  • Issue 21,
  • pp. 3567-3575
  • (2008)

Improved Digital-to-Analog Conversion Using Multi-Electrode Mach–Zehnder Interferometer

Not Accessible

Your library or personal account may give you access

Abstract

An improved version of a digital-to-analog converter (DAC) based on a multi-electrode Mach–Zehnder interferometer (MZI) is presented and analyzed. The device described has superior performance regarding both linearity and dynamic range. The improvements are achieved by utilizing a special mapping method between the analog input and the digital sequence applied to the device, and by an optimized sectioning method for the electrodes. Further improvement in linearity is attained by allowing the number of electrodes $M$ to be larger than the number of digitization bits $N$$(M>N)$. An analytical and systematic method for performing the mapping and selecting the electrodes' sizes is explicitly described and shown to be optimal. A comparison of the proposed approach to previously reported biased MZI reveals that dynamic range and linearity are significantly improved which is translated to increased resolution and reduced quantization errors. It follows from the optimization process that quantization and nonlinearity errors can be reduced to any extent by appropriately increasing the number of electrodes.

© 2008 IEEE

PDF Article
More Like This
Photonic analog-to-digital converter using Mach-Zehnder modulators having identical half-wave voltages with improved bit resolution

Shuna Yang, Chao Wang, Hao Chi, Xianmin Zhang, Shilie Zheng, Xiaofeng Jin, and Jianping Yao
Appl. Opt. 48(22) 4458-4467 (2009)

A photonic analog-to-digital converter based on an unbalanced Mach-Zehnder quantizer

Chris H. Sarantos and Nadir Dagli
Opt. Express 18(14) 14598-14603 (2010)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved