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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 3 — Feb. 1, 2010
  • pp: 3059–3070

Ultra-low-energy all-CMOS modulator integrated with driver

Xuezhe Zheng, Jon Lexau, Ying Luo, Hiren Thacker, Thierry Pinguet, Attila Mekis, Guoliang Li, Jing Shi, Philip Amberg, Nathaniel Pinckney, Kannan Raj, Ron Ho, John E. Cunningham, and Ashok V. Krishnamoorthy  »View Author Affiliations

Optics Express, Vol. 18, Issue 3, pp. 3059-3070 (2010)

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We report the first sub-picojoule per bit (400fJ/bit) operation of a silicon modulator intimately integrated with a driver circuit and embedded in a clocked digital transmitter. We show a wall-plug power efficiency below 400µW/Gbps for a 130nm SOI CMOS carrier-depletion ring modulator flip-chip integrated to a 90nm bulk Si CMOS driver circuit. We also demonstrate stable error-free transmission of over 1.5 petabits of data at 5Gbps over 3.5 days using the integrated modulator without closed-loop ring resonance tuning. Small signal measurements of the CMOS ring modulator, sans circuit, showed a 3dB bandwidth in excess of 15GHz at 1V of reverse bias, indicating that further increases in transmission rate and reductions of energy-per-bit is possible while retaining compatibility with CMOS drive voltages.

© 2010 OSA

OCIS Codes
(060.4510) Fiber optics and optical communications : Optical communications
(130.0130) Integrated optics : Integrated optics
(250.0250) Optoelectronics : Optoelectronics
(250.7360) Optoelectronics : Waveguide modulators
(130.6622) Integrated optics : Subsystem integration and techniques

ToC Category:
Integrated Optics

Original Manuscript: September 16, 2009
Revised Manuscript: January 15, 2010
Manuscript Accepted: January 17, 2010
Published: January 28, 2010

Xuezhe Zheng, Jon Lexau, Ying Luo, Hiren Thacker, Thierry Pinguet, Attila Mekis, Guoliang Li, Jing Shi, Philip Amberg, Nathaniel Pinckney, Kannan Raj, Ron Ho, John E. Cunningham, and Ashok V. Krishnamoorthy, "Ultra-low-energy all-CMOS modulator integrated with driver," Opt. Express 18, 3059-3070 (2010)

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