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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 21 — Oct. 10, 2011
  • pp: 20435–20443

25Gb/s 1V-driving CMOS ring modulator with integrated thermal tuning

Guoliang Li, Xuezhe Zheng, Jin Yao, Hiren Thacker, Ivan Shubin, Ying Luo, Kannan Raj, John E. Cunningham, and Ashok V. Krishnamoorthy  »View Author Affiliations


Optics Express, Vol. 19, Issue 21, pp. 20435-20443 (2011)
http://dx.doi.org/10.1364/OE.19.020435


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Abstract

We report a high-speed ring modulator that fits many of the ideal qualities for optical interconnect in future exascale supercomputers. The device was fabricated in a 130nm SOI CMOS process, with 7.5μm ring radius. Its high-speed section, employing PN junction that works at carrier-depletion mode, enables 25Gb/s modulation and an extinction ratio >5dB with only 1V peak-to-peak driving. Its thermal tuning section allows the device to work in broad wavelength range, with a tuning efficiency of 0.19nm/mW. Based on microwave characterization and circuit modeling, the modulation energy is estimated ~7fJ/bit. The whole device fits in a compact 400μm2 footprint.

© 2011 OSA

OCIS Codes
(200.4650) Optics in computing : Optical interconnects
(230.2090) Optical devices : Electro-optical devices
(230.3120) Optical devices : Integrated optics devices
(250.5300) Optoelectronics : Photonic integrated circuits
(250.7360) Optoelectronics : Waveguide modulators

ToC Category:
Optics in Computing

History
Original Manuscript: July 7, 2011
Revised Manuscript: September 2, 2011
Manuscript Accepted: September 22, 2011
Published: October 3, 2011

Citation
Guoliang Li, Xuezhe Zheng, Jin Yao, Hiren Thacker, Ivan Shubin, Ying Luo, Kannan Raj, John E. Cunningham, and Ashok V. Krishnamoorthy, "25Gb/s 1V-driving CMOS ring modulator with integrated thermal tuning," Opt. Express 19, 20435-20443 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-21-20435


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