Scaling VCSEL performance for 100terabits/s systems

J. E. Cunningham; D. Beckman; Xuezhe Zheng; A. V. Krishnamoorthy

doi:10.1117/12.658826

3 March 2006 Scaling VCSEL performance for 100terabits/s systems

J. E. Cunningham, D. Beckman, Xuezhe Zheng, A. V. Krishnamoorthy

Proceedings Volume 6124, Optoelectronic Integrated Circuits VIII; 61240O (2006) https://doi.org/10.1117/12.658826
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

We evaluate VCSEL interconnects for next-generation High Productivity Computers in which hundreds of terabits of bandwidth are envisioned. We present results for VCSEL based links operating PAM-4 signaling using a commercial 0.13μm CMOS technology. We perform a complete link analysis of the Bit Error Rate, Q factor, random and deterministic jitter by measuring waterfall curves versus margins in time and amplitude. We demonstrate that VCSEL based PAM-4 can match or even improve performance over binary signaling under conditions of bandwidth limited 100meter multi-mode optical link at 5Gbps. We present the first sensitivity measurements for optical PAM-4 and compare it with binary signaling. An empirical relationship for VCSEL scaling versus bit rate and aperture is presented in order to explore reliability of VCSEL-based links. Reliability is found to degrade with aperture with a fourth order power law dependence.

Citation Download Citation

J. E. Cunningham, D. Beckman, Xuezhe Zheng, and A. V. Krishnamoorthy "Scaling VCSEL performance for 100terabits/s systems", Proc. SPIE 6124, Optoelectronic Integrated Circuits VIII, 61240O (3 March 2006); https://doi.org/10.1117/12.658826

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