title: A high-speed, tunable silicon photonic ring modulator integrated with ultra-efficient active wavelength control.
abstract: We report the first complete 10G silicon photonic ring modulator with integrated ultra-efficient CMOS driver and closed-loop wavelength control. A selective substrate removal technique was used to improve the ring tuning efficiency. Limited by the thermal tuner driver output power, a maximum open-loop tuning range of about 4.5nm was measured with about 14mW of total tuning power including the heater driver circuit power consumption. Stable wavelength locking was achieved with a low-power mixed-signal closed-loop wavelength controller. An active wavelength tracking range of > 500GHz was demonstrated with controller energy cost of only 20fJ/bit.
authors.forename: Xuezhe
authors.initials: X
authors.lastname: Zheng
authors.forename: Eric
authors.initials: E
authors.lastname: Chang
authors.forename: Philip
authors.initials: P
authors.lastname: Amberg
authors.forename: Ivan
authors.initials: I
authors.lastname: Shubin
authors.forename: Jon
authors.initials: J
authors.lastname: Lexau
authors.forename: Frankie
authors.initials: F
authors.lastname: Liu
authors.forename: Hiren
authors.initials: H
authors.lastname: Thacker
authors.forename: Stevan S
authors.initials: SS
authors.lastname: Djordjevic
authors.forename: Shiyun
authors.initials: S
authors.lastname: Lin
authors.forename: Ying
authors.initials: Y
authors.lastname: Luo
authors.forename: Jin
authors.initials: J
authors.lastname: Yao
authors.forename: Jin-Hyoung
authors.initials: JH
authors.lastname: Lee
authors.forename: Kannan
authors.initials: K
authors.lastname: Raj
authors.forename: Ron
authors.initials: R
authors.lastname: Ho
authors.forename: John E
authors.initials: JE
authors.lastname: Cunningham
authors.forename: Ashok V
authors.initials: AV
authors.lastname: Krishnamoorthy