4 × 4 Integrated Switches Based on On-Chip Wireless Connection through Optical Phased Arrays
Abstract
:1. Introduction
- (1)
- The proposed 4 × 4 OWS configuration, based on the use of OPAs with seven antennas, increases the number of transmitters and receivers that can be connected by the same wireless switch. This adds a further building block for on-chip wireless interconnection networks, thus opening new possibilities for the network design space exploration.
- (2)
- The design criteria for the OPA are identified and the OWS performances are analyzed and optimized by the Finite Difference Time Domain (FDTD) numerical simulations.
- (3)
- The effect of multipath propagation in the multi-layer on-chip structure is evaluated, showing that the device performances can be optimized, in terms of insertion loss and crosstalk, by varying the cladding layer thickness.
- (4)
- The effect on the OWS behavior of a non-ideal distribution of the power in input to the OPA is investigated. For this purpose, we first report the results of the design of a 1 × 7 beam splitter, based on a Multi-Mode Interference (MMI) device. Then, the MMI output signals are considered in input to the transmitting OPA to evaluate the effect of the non-uniform distribution of the OPA input on the performances of the OWS. This analysis shows that the OWS performances are not significantly affected by a non-ideal distribution of power in input to the OPA.
2. 4 × 4 Optical Wireless Switch
2.1. Optical Phased Array Radiation Diagram
2.2. 4 × 4 OWS Operation Principle and Performances
3. Effect of Non-Uniform Power Distribution at the Transmitting OPA Antennas
3.1. 1 × 7 Multi-Mode Interference Beam Splitter
3.2. OWS Performance with Non-Uniform Input Power
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Input\Output | O1 | O2 | O3 | O4 |
---|---|---|---|---|
I1 | α = 0° | α = 51.4° | α = 102.8° | α = 154.2° |
I2 | α = −51.4° | α = 0° | α = 51.4° | α = 102.8° |
I3 | α = −102.8° | α = −51.4° | α = 0° | α = 51.4° |
I4 | α = −154.2° | α = −102.8° | α = −51.4° | α = 0° |
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Calò, G.; Bellanca, G.; Fuschini, F.; Barbiroli, M.; Bertozzi, D.; Tralli, V.; Petruzzelli, V. 4 × 4 Integrated Switches Based on On-Chip Wireless Connection through Optical Phased Arrays. Photonics 2023, 10, 367. https://doi.org/10.3390/photonics10040367
Calò G, Bellanca G, Fuschini F, Barbiroli M, Bertozzi D, Tralli V, Petruzzelli V. 4 × 4 Integrated Switches Based on On-Chip Wireless Connection through Optical Phased Arrays. Photonics. 2023; 10(4):367. https://doi.org/10.3390/photonics10040367
Chicago/Turabian StyleCalò, Giovanna, Gaetano Bellanca, Franco Fuschini, Marina Barbiroli, Davide Bertozzi, Velio Tralli, and Vincenzo Petruzzelli. 2023. "4 × 4 Integrated Switches Based on On-Chip Wireless Connection through Optical Phased Arrays" Photonics 10, no. 4: 367. https://doi.org/10.3390/photonics10040367