Abstract
This paper proposes an electronic-photonic converged adaptive-tuning-step (ATS) pipelined time-division-multiplexing (PTDM) scheme to achieve fast wavelength locking of multiple micro-ring resonators (MRRs) using a shared controller without deteriorating the locking accuracy. The ATS technique breaks the trade-off between wavelength tracking speed and locking accuracy. The PTDM control enables controller sharing while maintaining a high loop bandwidth by exploiting the speed mismatch between the heater and the controller. Custom-designed integrated circuits provide interfacing and clocking functions. A hybrid-integrated four-channel prototype of the proposed scheme has demonstrated a record-breaking tracking speed of 180 nm/s with a locking accuracy of about 7 pm and a tuning range of about 9 nm. This scheme could be extended to applications with dozens or even hundreds of MRRs.
PDF Article
More Like This
A high-speed, tunable silicon photonic ring modulator integrated with ultra-efficient active wavelength control
Xuezhe Zheng, Eric Chang, Philip Amberg, Ivan Shubin, Jon Lexau, Frankie Liu, Hiren Thacker, Stevan S. Djordjevic, Shiyun Lin, Ying Luo, Jin Yao, Jin-Hyoung Lee, Kannan Raj, Ron Ho, John E. Cunningham, and Ashok V. Krishnamoorthy
Opt. Express 22(10) 12628-12633 (2014)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription