An N-Port Universal Multimode Optical Router Supporting Mode-Division Multiplexing.

Yuehong Yang,Xiao Jiang,Yiyuan Xie,Junxiong Chai,Li Dai,Yichen Ye,Tingting Song,Bocheng Liu,Ye Su

doi:10.3390/mi12121438

Abstract

Optical network-on-chip (ONoC) is based on optical interconnects and optical routers (ORs), which have obvious advantages in bandwidth and power consumption. Transmission capacity is a significant performance in ONoC architecture, which has to be fully considered during the design process. Relying on mode-division multiplexing (MDM) technology, the system capacity of optical interconnection is greatly improved compared to the traditional multiplexing technology. With the explosion in MDM technology, the optical router supporting MDM came into being. In this paper, we design a multimode optical router (MDM-OR) model and analyze its indicators. Above all, we propose a novel multimode switching element and design an N-port universal multimode optical router (MDM-OR) model. Secondly, we analyze the insertion loss model of different optical devices and the crosstalk noise model of N-port MDM-OR. On this basis, a multimode router structure of a single-mode five-port optical router is proposed. At the same time, we analyze the transmission loss, crosstalk noise, signal-to-noise radio (OSNR), and bit error rate (BER) of different input–output pairs by inputting the 1550 nm TE, TE, and TE modes to the router.

Highlights

Accepted: 18 November 2021Optical network-on-chip (ONoC) is a new interconnection technology that replaces electrical connections with optical connections, overcoming the shortcomings of traditional electrical interconnections, and has broad application prospects in high-speed communication networks due to its low latency, ultra-high bandwidth, and distance-independent power consumption [1,2,3,4]
Since multimode waveguides can transmit different modes, mode-division multiplexing (MDM) technology is considered an effective method to further increase the capacity of the communication systems
The optical router supporting MDM is an important part of the ONoC implements

Summary

Introduction

Accepted: 18 November 2021Optical network-on-chip (ONoC) is a new interconnection technology that replaces electrical connections with optical connections, overcoming the shortcomings of traditional electrical interconnections, and has broad application prospects in high-speed communication networks due to its low latency, ultra-high bandwidth, and distance-independent power consumption [1,2,3,4]. In order to further improve the channel capacity of optical interconnection, many (de)multiplexing technologies have been proposed and studied, such as wavelength-division multiplexing (WDM) [5,6,7,8], code-division multiplexing (CDM) [9,10,11], and time-division multiplexing (TDM) [12,13,14]. Among these multiplexing technologies, the research on WDM technology is the most extensive. Since different orthogonal optical modes can be transmitted together in a multimode waveguide, the mode-division multiplexing (MDM) technology can further improve the transmission

Methods

Results

Conclusion