Ultra-low-energy programmable non-volatile silicon photonics based on phase-change materials with graphene heaters
Source abstract
Abstract
Silicon photonics is evolving from laboratory research to real-world applications with the potential to transform many technologies, including optical neural networks and quantum information processing. A key element for these applications is a reconfigurable switch operating at ultra-low programming energy-a challenging proposition for traditional thermo-optic or free carrier switches. Recent advances in non-volatile programmable silicon photonics based on phase-change materials (PCMs) provide an attractive solution to energy-efficient photonic switches with zero static power, but the programming energy density remains high (hundreds of attojoules per cubic nanometre). Here we demonstrate a non-volatile electrically reconfigurable silicon photonic platform leveraging a monolayer graphene heater with high energy efficiency and endurance. In particular, we show a broadband switch based on the technologically mature PCM Ge2Sb2Te5 and a phase shifter employing the emerging low-loss PCM Sb2Se3. The graphene-assisted photonic switches exhibited an endurance of over 1,000 cycles and a programming energy density of 8.7 ± 1.4 aJ nm-3, that is, within an order of magnitude of the PCM thermodynamic switching energy limit (~1.2 aJ nm-3) and at least a 20-fold reduction in switching energy compared with the state of the art. Our work shows that graphene is a reliable and energy-efficient heater compatible with dielectric platforms, including Si3N4, for technologically relevant non-volatile programmable silicon photonics.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Neural Networks and Reservoir Computing · Photonic and Optical Devices · Phase-change materials and chalcogenides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (51)
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1. Cheng, Q., Bahadori, M., Glick, M., Rumley, S. & Bergman, K. Recent advances in optical technologies for data centers: a review. Optica 5, 1354–1370 (2018).10.1364/OPTICA.5.001354 ↗
2. Pérez, D. et al. Multipurpose silicon photonics signal processor core. Nat. Commun. 8, 636 (2017).10.1038/s41467-017-00714-1 ↗
3. Shen, Y. et al. Deep learning with coherent nanophotonic circuits. Nat. Photon. 11, 441–446 (2017).10.1038/nphoton.2017.93 ↗
4. Arrazola, J. M. et al. Quantum circuits with many photons on a programmable nanophotonic chip. Nature 591, 54–60 (2021).10.1038/s41586-021-03202-1 ↗
5. Rogers, C. et al. A universal 3D imaging sensor on a silicon photonics platform. Nature 590, 256–261 (2021).10.1038/s41586-021-03259-y ↗
6. Watts, M. R. et al. Adiabatic thermo-optic Mach–Zehnder switch. Opt. Lett. 38, 733–735 (2013).10.1364/OL.38.000733 ↗
7. Thomson, D. J. et al. 50-Gb/s silicon optical modulator. IEEE Photon. Technol. Lett. 24, 234–236 (2012).10.1109/LPT.2011.2177081 ↗
8. Bogaerts, W. et al. Programmable photonic circuits. Nature 586, 207–216 (2020).10.1038/s41586-020-2764-0 ↗
9. Han, J.-H. et al. Efficient low-loss InGaAsP/Si hybrid MOS optical modulator. Nat. Photon. 11, 486–490 (2017).10.1038/nphoton.2017.122 ↗
10. He, M. et al. High-performance hybrid silicon and lithium niobate Mach–Zehnder modulators for 100 Gbit s−1 and beyond. Nat. Photon. 13, 359–364 (2019).10.1038/s41566-019-0378-6 ↗
11. Koeber, S. et al. Femtojoule electro-optic modulation using a silicon–organic hybrid device. Light Sci. Appl. 4, e255 (2015).10.1038/lsa.2015.28 ↗
12. Rudolph, T. Why I am optimistic about the silicon-photonic route to quantum computing. APL Photon. 2, 030901 (2017).10.1063/1.4976737 ↗
13. Fang, Z., Chen, R., Zheng, J. & Majumdar, A. Non-volatile reconfigurable silicon photonics based on phase-change materials. IEEE J. Sel. Top. Quantum Electron. https://doi.org/10.1109/JSTQE.2021.3120713 (2021).10.1109/JSTQE.2021.3120713 ↗
14. Raoux, S., Xiong, F., Wuttig, M. & Pop, E. Phase change materials and phase change memory. MRS Bull. 39, 703–710 (2014).10.1557/mrs.2014.139 ↗
15. Shportko, K. et al. Resonant bonding in crystalline phase-change materials. Nat. Mater. 7, 653–658 (2008).10.1038/nmat2226 ↗
16. Zheng, J. et al. Nonvolatile electrically reconfigurable integrated photonic switch enabled by a silicon PIN diode heater. Adv. Mater. 32, 2001218 (2020).10.1002/adma.202001218 ↗
17. Zheng, J. et al. GST-on-silicon hybrid nanophotonic integrated circuits: a non-volatile quasi-continuously reprogrammable platform. Opt. Mater. Express 8, 1551–1561 (2018).10.1364/OME.8.001551 ↗
18. Ríos, C. et al. Ultra-compact nonvolatile photonics based on electrically reprogrammable transparent phase change materials. Preprint at https://arxiv.org/abs/2105.06010 (2021).
19. Xu, P., Zheng, J., Doylend, J. K. & Majumdar, A. Low-loss and broadband nonvolatile phase-change directional coupler switches. ACS Photon. 6, 553–557 (2019).10.1021/acsphotonics.8b01628 ↗
20. Ríos, C. et al. Integrated all-photonic non-volatile multi-level memory. Nat. Photon. 9, 725–732 (2015).10.1038/nphoton.2015.182 ↗
21. Feldmann, J. et al. Calculating with light using a chip-scale all-optical abacus. Nat. Commun. 8, 1256 (2017).10.1038/s41467-017-01506-3 ↗
22. Feldmann, J. et al. Parallel convolutional processing using an integrated photonic tensor core. Nature 589, 52–58 (2021).10.1038/s41586-020-03070-1 ↗
23. Delaney, M. et al. Nonvolatile programmable silicon photonics using an ultralow-loss Sb2Se3 phase change material. Sci. Adv. 7, eabg3500 (2021).10.1126/sciadv.abg3500 ↗
24. Delaney, M., Zeimpekis, I., Lawson, D., Hewak, D. W. & Muskens, O. L. A new family of ultralow loss reversible phase-change materials for photonic integrated circuits: Sb2S3 and Sb2Se3. Adv. Funct. Mater. 30, 2002447 (2020).10.1002/adfm.202002447 ↗
25. Zheng, J., Zhu, S., Xu, P., Dunham, S. & Majumdar, A. Modeling electrical switching of nonvolatile phase-change integrated nanophotonic structures with graphene heaters. ACS Appl. Mater. Interfaces 12, 21827–21836 (2020).10.1021/acsami.0c02333 ↗
26. Zhang, H. et al. Miniature multilevel optical memristive switch using phase change material. ACS Photon. 6, 2205–2212 (2019).10.1021/acsphotonics.9b00819 ↗
27. Kato, K., Kuwahara, M., Kawashima, H., Tsuruoka, T. & Tsuda, H. Current-driven phase-change optical gate switch using indium–tin-oxide heater. Appl. Phys. Express 10, 072201 (2017).10.7567/APEX.10.072201 ↗
28. Taghinejad, H. et al. ITO-based microheaters for reversible multi-stage switching of phase-change materials: towards miniaturized beyond-binary reconfigurable integrated photonics. Opt. Express 29, 20449–20462 (2021).10.1364/OE.424676 ↗
29. Fang, Z. et al. Non-volatile reconfigurable integrated photonics enabled by broadband low-loss phase change material. Adv. Opt. Mater. 9, 2002049 (2021).10.1002/adom.202002049 ↗
30. Xiong, F., Liao, A. D., Estrada, D. & Pop, E. Low-power switching of phase-change materials with carbon nanotube electrodes. Science 332, 568–570 (2011).10.1126/science.1201938 ↗
31. Khan, A. I. et al. Ultralow-switching current density multilevel phase-change memory on a flexible substrate. Science 373, 1243–1247 (2021).10.1126/science.abj1261 ↗
32. Farmakidis, N. et al. Plasmonic nanogap enhanced phase-change devices with dual electrical-optical functionality. Sci. Adv. 5, eaaw2687 (2019).10.1126/sciadv.aaw2687 ↗
33. Ballan, H. & Declercq, M. High Voltage Devices and Circuits in Standard CMOS Technologies (Springer, 2013).
34. Moss, D. J., Morandotti, R., Gaeta, A. L. & Lipson, M. New CMOS-compatible platforms based on silicon nitride and Hydex for nonlinear optics. Nat. Photon. 7, 597–607 (2013).10.1038/nphoton.2013.183 ↗
35. Heimala, P., Katila, P., Aarnio, J. & Heinamaki, A. Thermally tunable integrated optical ring resonator with poly-Si thermistor. J. Lightwave Technol. 14, 2260–2267 (1996).10.1109/50.541217 ↗
36. Fang, Z., Zheng, J., & Majumdar, A. Non-volatile integrated photonics enabled by broadband transparent phase change material. In Conference on Lasers and Electro-Optics JTh2B.3 (Optical Society of America, 2020); https://doi.org/10.1364/CLEO_AT.2020.JTh2B.310.1364/CLEO_AT.2020.JTh2B.3 ↗
37. Ríos, C. et al. Multi-level electro-thermal switching of optical phase-change materials using graphene. Adv. Photon. Res. 2, 2000034 (2021).10.1002/adpr.202000034 ↗
38. Ríos, C. et al. In-memory computing on a photonic platform. Sci. Adv. 5, eaau5759 (2019).10.1126/sciadv.aau5759 ↗
39. Loke, D. K. et al. Ultrafast nanoscale phase-change memory enabled by single-pulse conditioning. ACS Appl. Mater. Interfaces 10, 41855–41860 (2018).10.1021/acsami.8b16033 ↗
40. Xiong, C. et al. Monolithic 56 Gb/s silicon photonic pulse-amplitude modulation transmitter. Optica 3, 1060–1065 (2016).10.1364/OPTICA.3.001060 ↗
41. Schuler, S. et al. High-responsivity graphene photodetectors integrated on silicon microring resonators. Nat. Commun. 12, 3733 (2021).10.1038/s41467-021-23436-x ↗
42. Wang, F. et al. Gate-variable optical transitions in graphene. Science 320, 206–209 (2008).10.1126/science.1152793 ↗
43. Sorianello, V. et al. Graphene–silicon phase modulators with gigahertz bandwidth. Nat. Photon. 12, 40–44 (2018).10.1038/s41566-017-0071-6 ↗
44. Li, X. et al. Fast and reliable storage using a 5 bit, nonvolatile photonic memory cell. Optica 6, 1–6 (2019).10.1364/OPTICA.6.000001 ↗
45. Wang, L. et al. One-dimensional electrical contact to a two-dimensional material. Science 342, 614–617 (2013).10.1126/science.1244358 ↗
46. Gao, L. et al. Face-to-face transfer of wafer-scale graphene films. Nature 505, 190–194 (2014).10.1038/nature12763 ↗
47. Lee, Y. et al. Wafer-scale synthesis and transfer of graphene films. Nano Lett. 10, 490–493 (2010).10.1021/nl903272n ↗
48. Romagnoli, M. et al. Graphene-based integrated photonics for next-generation datacom and telecom. Nat. Rev. Mater. 3, 392–414 (2018).10.1038/s41578-018-0040-9 ↗
49. Liang, X. et al. Toward clean and crackless transfer of graphene. ACS Nano 5, 9144–9153 (2011).10.1021/nn203377t ↗
50. Atabaki, A. H. et al. Integrating photonics with silicon nanoelectronics for the next generation of systems on a chip. Nature 556, 349–354 (2018).10.1038/s41586-018-0028-z ↗
51. Sun, C. et al. Single-chip microprocessor that communicates directly using light. Nature 528, 534–538 (2015).10.1038/nature16454 ↗