Abstract
We propose a universal method for constructing N-port non-blocking optical router for photonic networks-on-chip, in which all microring (MR) optical switches or Mach-Zehnder (M-Z) optical switches behave as 2 × 2 optical switches. The optical router constructed by the proposed method has minimum optical switches, in which the number of the optical switches is reduced about 50% compared to the reported optical routers based on MR optical switches and more than 30% compared to the reported optical routers based on M-Z optical switches, and therefore is more compact in footprint and more power-efficient. We also present a strict mathematical proof of the non-blocking routing of the proposed N-port optical router.
Highlights
IntroductionThe number of transistors on integrated circuits doubles approximately every two years and its speed becomes faster and faster [1]
While manufacturing technology improves, the number of transistors on integrated circuits doubles approximately every two years and its speed becomes faster and faster [1]
The optical router used in Cluster-Mesh photonic NoC is dependent on the number of the processor cores located at each node and the Cluster-Mesh photonic NoC shown in Fig. 1(b) requires 8-port optical router
Summary
The number of transistors on integrated circuits doubles approximately every two years and its speed becomes faster and faster [1]. 4- and 5-port optical routers are not enough to construct all photonic NoCs. High-radix non-blocking optical routers have potential applications in the future on-chip optical interconnects, such as Cluster-Mesh and Clos photonic NoCs. For example, the optical router used in Cluster-Mesh photonic NoC is dependent on the number of the processor cores located at each node and the Cluster-Mesh photonic NoC shown in Fig. 1(b) requires 8-port optical router. We propose a general guideline for designing the N-port non-blocking optical router based on MR optical switches [31]. When a voltage with a certain amplitude applied to the MR, it will be tuned to be off-resonance at the working wavelength and the incident light will be directed to the through-port of the MR, i.e. the MR optical switch is on the “cross” status. The footprint of the MR optical switch will be comparable to that of the M-Z optical switch
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
