A 25 Gb/s, 4.4 V-Swing, AC-Coupled Ring Modulator-Based WDM Transmitter with Wavelength Stabilization in 65 nm CMOS Conference Paper uri icon


  • 1966-2012 IEEE. Silicon photonics devices offer promising solution to meet the growing bandwidth demands of next-generation interconnects. This paper presents a 5 25 Gb/s carrier-depletion microring-based wavelength-division multiplexing (WDM) transmitter in 65 nm CMOS. An AC-coupled differential driver is proposed to realize 4 VDD output swing as well as tunable DC-biasing. The proposed transmitter incorporates 2-tap asymmetric pre-emphasis to effectively cancel the optical nonlinearity of the ring modulator. An average-power-based dynamic wavelength stabilization loop is also demonstrated to compensate for thermal induced resonant wavelength drift. At 25 Gb/s operation, each transmitter channel consumes 113.5 mW and maintains 7 dB extinction ratio with a 4.4 V$
    m pp-diff output swing in the presence of thermal fluctuations.

published proceedings


altmetric score

  • 3

author list (cited authors)

  • Li, H., Xuan, Z., Titriku, A., Li, C., Yu, K., Wang, B., ... Chiang, P. Y.

citation count

  • 74

complete list of authors

  • Li, Hao||Xuan, Zhe||Titriku, Alex||Li, Cheng||Yu, Kunzhi||Wang, Binhao||Shafik, Ayman||Qi, Nan||Liu, Yang||Ding, Ran||Baehr-Jones, Thomas||Fiorentino, Marco||Hochberg, Michael||Palermo, Samuel||Chiang, Patrick Yin

publication date

  • December 2015