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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 2 — Jan. 21, 2008
  • pp: 567–572

A photonic analog-to-digital conversion scheme using Mach-Zehnder modulators with identical half-wave voltages

Hao Chi and Jianping Yao  »View Author Affiliations

Optics Express, Vol. 16, Issue 2, pp. 567-572 (2008)

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A novel photonic analog-to-digital conversion scheme implemented using an array of Mach-Zehnder modulators (MZMs) with identical half-wave voltages is proposed and demonstrated. It is different from the scheme proposed by Taylor where the MZMs should have geometrically scaled half-wave voltages; the proposed scheme here uses MZMs with identical half-wave voltages, which eliminates the need for the MZMs to have very low half-wave voltages. By properly biasing the MZMs, the transfer functions of the MZMs are laterally shifted, which leads to the generation of a linear binary code to represent the analog input signal. The use of the MZMs with identical half-wave voltages simplifies greatly the design and implementation, which provides a high potential for integration. A proof-of-concept experiment for analog-to-digital conversion with a quantization level of 16 is demonstrated.

© 2008 Optical Society of America

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(230.0250) Optical devices : Optoelectronics

ToC Category:
Optical Devices

Original Manuscript: November 20, 2007
Revised Manuscript: December 29, 2007
Manuscript Accepted: January 4, 2008
Published: January 7, 2008

Hao Chi and Jianping Yao, "A photonic analog-to-digital conversion scheme using Mach-Zehnder modulators with identical half-wave voltages," Opt. Express 16, 567-572 (2008)

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