Four-Port Silicon Multi-Wavelength Optical Router for Photonic Networks-on-Chip

Abstract

Abstract-We design and fabricate a four-port wavelengthselective optical router on silicon-on-insulator wafer for photonic networks-on-chip. The router consists of four basic operation blocks. Each is constructed by one microring resonator (MRR) based add-drop filter rather than the traditional two microrings based 2 × 2 optical crossbar. It can provide multiwavelength routing for each path to increase the aggregate data transmission bandwidth. The possible 12 I/O routing paths are experimentally observed in the transmission spectra and each of them has the ability to route four group wavelengths simultaneously in the measured spectral range. The device has a small footprint (∼78 × 100 µm 2 ) and low power consumption (6.58 mW).

A study on refractive index sensors based on optical micro-ring resonators

“…8 Relative changes in the effective refractive index, and consequently in the resonant wavelength, as function of the refractive index change n in the bio-layer, when its thickness is (a) t=10 nm and (b) t=20 nm. It is clear that the dependence is again linear, and the highest sensitivity is exhibited by the env 3 2   h single core waveguide. Indeed, the slope in this case is 5 n .…”

Fat‐tree‐based optical networks‐on‐chip with WDM: crosstalk noise exploiting

“…Due to these remarkable advantages, ONoCs_W have received more and more attentions. Several ONoCs_W [6,7] and WDMbased optical routers [8,9] have been proposed, in which ONoCs_W show better performance in bandwidth, energy efficiency and latency in comparison to ONoCs employing single wavelength. Yet for all that, crosstalk noise is still an essential research topic for ONoCs_W since ONoCs_W encounter inevitable crosstalk noise [10].…”

Integrated five-port non-blocking optical router based on mode-selective property

“…Lots of optical routers and switches have been reported [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Among them, the four-port and five-port optical routers have received wide attention as they are commonly used as building blocks of many photonic NoC architectures [5][6][7][8][9][10][11][12][13]. Compared with optical routers with dynamically established routing paths, optical routers with passively established routing paths are much more energy-efficient and have no switching time on the expense of fixed routing paths [8-10, 15, 18].…”