Xun Guan

August 2012 - November 2016, Ph.D. in Information Engineering, The Chinese University of Hong Kong, Hong Kong, China

September 2007 - June 2012, B.E. in Electronic Science and Engineering, Huazhong University of Science and Technology, China

April 2022 - present, Assistant Professor, Tsinghua Shenzhen International Graduate School, China

March 2017 – April 2022, Postdoc Fellow & Research Scientist, Université Laval, Canada

Lightwave for Intelligence and Telecommunication (LIT), including optical fiber communication, photonic integrated circuits (PIC), visible light communication (VLC) and optical wireless communication (OWC), deep learning in biomedical imaging and optoelectronic signal processing.

Selected Publications

Please visit my homepage at https://xunguan.github.io/ for the latest update.

Preprints:

[PP2] Y. Ma, X. Wang, B. Zhao, Y. Xiao, S. Deng, J. Song, and X. Guan*, “Iterative-in-Iterative Super-Resolution Biomedical Imaging Using One Real Image,” arXiv:2306.14487, 2023.

[PP1] Y. Ma, W. Zhou, R. Ma, S. Yang, Y. Tang, and X. Guan*, “Self-Similarity-Based Super-Resolution of Photoacoustic Angiography from Hand-Drawn Doodles,” arXiv:2305.01165, 2023.

Journal Papers

[J20] A. Omidi, X. Guan, M. Zeng, and L. A. Rusch, “Initialized Autoencoders to Find Constellations Robust to Residual Laser Phase Noise,” Optica Continuum, 2023.

[J19] Z. Geng, F. N. Khan, X. Guan, and Y. Dong, “Advances in Visible Light Communication Technologies and Applications (Invited),” Photonics, vol. 9, no. 12, pp. 893, Nov. 2022.

[J18] Mai Banawan, Satyendra K. Mishra, Ariane Gouin, Nathalie Bacon, Xun Guan, Lixian Wang, Sophie LaRochelle, and Leslie A. Rusch, “Expanded Modal Capacity for OAM with Standard 2×2 MIMO (Invited)”, accepted to Journal of Lightwave Technology.

[J17] D. Qi, J. Li, X. Guan* and C.K. Chan, “Dynamic polarization-insensitive BOTDA in direct-detection OFDM with CNN-based BFS extraction,” Optics Express, vol. 30, no. 5, pp. 7725-7736, Feb. 2022.

[J16] X. Guan, M. Lyu, W. Shi, and L. A. Rusch, “ Polarization-Insensitive Silicon Microring Modulator for Single Sideband Modulation,” IEEE/OSA Journal of Lightwave Technology, vol. 40, no. 3, pp.744-750, Feb. 2022.

[J15] W. Lyu, X. Li, Y. Zhang, X. Guan, Z. Zhang and J. Xu, “Experimental Demonstration of Underwater Wireless Optical OFDM Communication System with a Single SPAD Receiver,” Optics Communications, vol. 508, Dec. 2021.

[J14] X. Guan, W. Shi, and L. A. Rusch, “Ultra-Dense Wavelength-Division Multiplexing with Microring Modulator,” IEEE/OSA Journal of Lightwave Technology, vol. 39, no. 13, pp. 4300 - 4306, Jul. 2021. 

[J13] X. Guan, W. Shi, J. Liu, P. Tan, J. Slevinsky, and L. A. Rusch, “Silicon Photonics in Optical Access Networks for 5G Communications,” IEEE Communications Magazine, vol. 59, no. 6, pp. 126-131, Jun. 2021.

[J12] X. Guan, R. Dubé-Demers, W. Shi, and L. A. Rusch, “Heterogeneous Optical Access Networks: Enabling Low-Latency 5G Services with a Silicon Photonic Smart Edge,” IEEE/OSA Journal of Lightwave Technology, vol. 39, no. 8, pp. 2348-2357, Apr. 2021.

[J11] X. Guan, S. Bélanger-de Villers, W. Shi, and L. A. Rusch, “Overlaying 5G Radio Access Networks on Wavelength Division Multiplexed Optical Access Networks with Carrier Distribution,” Optics Express, vol. 29, no. 3, pp. 3631-3642, Feb. 2021.

[J10] M. Hasan, O. Jafari, X. Guan, L. A. Rusch, S. LaRochelle, and T. Hall, “Integrated optical SSB modulation/frequency shifting using cascaded silicon MZM,” Photonics Technology Letters, vol. 32, no. 18, pp. 1147–1150, Aug. 2020.

[J9] L. Feng, Y. Li, S. Wu, X. Guan, C. Yang, W. Tong, W. Li, J. Qiu, X. Hong, Y. Zuo, H. Guo, E. Chen, and J. Wu, “All-fiber generation of arbitrary cylindrical vector beams on the first-order Poincaré sphere,” Photonics Research, vol. 8, no. 8, pp. 1268-1277, Aug. 2020.

[J8] X. Guan, Q. Yang, T. Wang, and C. K. Chan, “Phase-Aligned Physical-Layer Network Coding in Visible Light Communications,” Photonics Journal, vol. 11, no. 2, pp. 1–9, Apr. 2019.

[J7] R. M. Nejad, F. Tavakoli, L. Wang, X. Guan, S. LaRochelle, and L. A. Rusch, “RoF Data Transmission Using Four Linearly Polarized Vector Modes of a Polarization Maintaining Elliptical Ring Core Fiber,” IEEE/OSA Journal of Lightwave Technology, vol. 36, no. 17, pp. 3794-3801, Sep. 2018.

[J6] W. C. Lyu, A. Wang, D. Xie, L. Zhu, X. Guan, J. Wang, and J. Xu, “Self-homodyne optical OFDM for broadband WDM-PONs with crosstalk-free remodulation and enhanced tolerance to Rayleigh noise,” Optics Communications, vol. 414, May 2018.

[J5] G. W. Lu, X. Guan, T. Sakamoto, N. Yamamoto, and C. K. Chan, “Simple Self-homodyne Detection Scheme for Optical OFDM with Inserted Pilot Subframes and Application in Optical Access Networks,” IEEE Access, vol. 5, no. 11, pp. 24602-24607 Nov. 2017.

[J4] R. Lin, Y. Cheng, X. Guan, M. Tang, D. Liu, J. Chen and C. K. Chan, “Physical-Layer Network Coding for Passive Optical Interconnect in Datacenter Networks,” Optics Express, vol. 25, no. 15, pp. 17788-17797, 2017.

[J3] X. Guan, Q. Yang, Y. Hong, and C. K. Chan, “Joint detection of visible light communication signals under non-orthogonal multiple access,” Photonics Technology Letters, vol. 29, no. 4, pp. 377-380, 2017.

[J2] X. Guan, Q. Yang, Y. Hong, and C. K. Chan, “Non-orthogonal multiple access with phase predistortion in visible light communication systems,” Optics Express, vol. 24, no. 22, pp. 25816-25823, 2016.

[J1] X. Guan, and C. K. Chan, “Physical-layer network coding in coherent optical OFDM,” OSA Optics Express, vol. 23, no. 8, pp. 10057-10063, 2015.

Invited Conference Talks

[T6] L. A. Rusch and X. Guan, “Silicon Photonics for High-Speed 5G and Optical Networks (Invited)”, OFC, San Diego, Mar. 2023.

[T5] X. Guan,“Silicon Photonics for Optical Access Networks in Post-5G Era (invited),” in OGC 2022, Shenzhen, China.

[T4] X. Guan, “后5G时代光接入网中基于硅基光电集成的智能边缘(邀请报告),”in GoInc 2022, online.

[T3] L. A. Rusch, X. Guan and W. Shi, “Silicon Photonics for 5G Passive Optical Networks (Invited)”, ONDM, online, Jun. 2021.

[T2] L. A. Rusch, X.Guan, M. Lyu, and W. Shi, “Silicon Photonics for 5G Communications (Invited)”, IPC, online, 2020.

[T1] X. Guan, M. Lyu, R. Dubé-Demers, Y. Xu, L. A. Rusch, and W. Shi, “Silicon Photonics for 5G Passive Optical Networks (Invited)”, IEEE IEMCON, Vancouver, Canada, Oct. 2019.

Conference Proceedings

[C36] 马远征，王欣悦，赵本琦，肖颖，关迅*，“基于嵌套迭代神经网络仅使用八张图像实现医学影像超分辨重建，” 第二届“生物医学光子学交叉融合”学术论坛(BPC2023) ，2023年6月8-10日，上海（优秀学生报告奖）。

[C35] 马远征，关迅*，“基于嵌套迭代的少样本超分辨血管造影术，”第三届光子技术论坛，2023年3月31日-4月3日，广东广州。

[C34] 关迅，“应用于高速光载无线通信的硅基光电集成技术，”第三届光子技术论坛，2023年3月31日-4月3日，广东广州。

[C33] Pengtao Luo, Yuanzheng Ma, Xueguang Qiao, Xun Guan, and Ruohui Wang, “Femtosecond Laser Inscription of Eccentric Waveguide in Optical Fiber for Rayleigh Scattering Enhancement,” in CLEO, San Jose, USA, May 2023.

[C32] M. Banawan, G. Adibifard, S. Mishra, N. Bacon, X. Guan, L. Wang, S. Larochelle, and L. Rusch, “Record High Throughput using Electronic 2×2 MIMO with OAM Multiplexing,” in CLEO, San Jose, USA, May 2023.

[C31] D. Qi, X. Guan, and C. K. Chan, “Accelerated Brillouin Frequency Shift Estimation Algorithm,”, in CLEO, San Jose, USA, May 2023. 

[C30] Y. Ma, and X. Guan*, “Super-Resolution Photoacoustic Angiography Assisted by Images Forged from Hand-Drawn Graffiti,” in CLEO, San Jose, USA, May 2023.

[C29] X. Guan, “Silicon Photonics for Access in Post-5G Era (invited),” in Photopto 2023, Paris, France.

[C28] L. Wu, Y. Ma, X. Guan, and J. Wang, “Facile Imaging-Based Plasmonic Biosensing Augmented by Deep Learning,” in ACP/ICOP 2022, Shenzhen, China (Technopreneurship Award, The Best Innovation Award).

[C27] D. Qi, X. Guan, and C. K. Chan, “An Efficient Ternary Search for Dynamic Brillouin Frequency Shift in BOTDA”, in ACP/ICOP 2022, Shenzhen, China.

[C26] X. Guan, “Silicon Photonics for Optical Access Networks in Post-5G Era (invited),” in OGC 2022, online, China.

[C25] M. Banawan, S. K. Mishra, A. Gouin, N. Bacon, X. Guan, L. Wang, S. LaRochelle, and L. Rusch,‘Equalizer Complexity in OAM Transmission Systems using a Standard PDM Coherent Receiver,’ in IPC, Vancouver, Canada, Nov. 2022.

[C24] A. Omidi, X. Guan, M. Zeng, and L. A. Rusch, “Optimizing Geometric Constellations for Phase Noise Channels Using Deep Learning,” in IPC, Vancouver, Canada, Nov. 2022.

[C23] A. Omidi, X. Guan, M. Zeng, and L. A. Rusch, “Optimizing Geometric Shaping of 16QAM for Phase Noise Channels Using Deep Learning,” in Photonics North, Niagara Falls, Canada, May 2022.

[C22] X. Guan, A. Omidi, M. Zeng, and L. A. Rusch, “Experimental Demonstration of a Constellation Shaped via Deep Learning and Robust to Residual-Phase-Noise,” in CLEO 2022, San Jose, USA, May 2022.

[C21] X. Guan, W. Shi, and L. A. Rusch, “Silicon Photonics for Next-Generation Optical Access Network (Invited),” in Optical Instrument and Technology, Chengdu, China, Nov. 2021.

[C20] X. Guan, M. Lyu, W. Shi and L. A. Rusch, “Silicon Microring Modulator with Polarization Insensitivity”, in ECOC, Bordeaux, France, Sep. 2021.

[C19] L. A. Rusch, X. Guan and W. Shi, “Silicon Photonics for 5G Passive Optical Networks (Invited),” in ONDM, online, Jun. 2021.

[C18] D. Qi, X. Guan and C. K. Chan, “Polarization-Insensitive Dynamic BOTDA Based on Direct-Detection OFDM,” in OECC, Hong Kong, Jul. 2021.

[C17] L. A. Rusch, X. Guan, M. Lyu, and W. Shi, “Silicon Photonics for 5G Communications (Invited),” in IPC, online, 2020.

[C16] X. Guan, R. Dubé-Demers, W. Shi, and L. A. Rusch, “5G Service Overlay in WDM Optical Access Network with Colorless Smart Edge Based on SiP MRM,” in CLEO, online, 2020.

[C15] X. Guan, M. Lyu, R. Dubé-Demers, Y. Xu, L. A. Rusch, and W. Shi, “Silicon Photonics for 5G Passive Optical Networks (Invited),” in IEEE IEMCON, Vancouver, Canada, Oct. 2019.

[C14] S. LaRochelle, A. Corsi, R. Mirzaei Nejad, L. Wang, X. Guan, J.-H. Chang, J. Lin, and L. A. Rusch, “Optical fiber designs for MIMO-less SDM,” in CLEO, San Jose, USA, May 2018.

[C13] R. M. Nejad, F. Tavakoli, L. Wang, X. Guan, and L. A. Rusch, “Four-channel RoF transmission over polarization maintaining elliptical ring core fiber,” in OFC, San Diego, USA, Mar. 2018.

[C12] X. Guan, Y. Xu, J. Lin, M. Lyu, R. Dube-Demers, S. LaRochelle, W. Shi, and L. A. Rusch, “Enabling 5G services in PON with a novel smart edge based on SiP MRM,” in OFC, San Diego, USA, Mar. 2018.

[C11] M. Lyu, X. Guan, Z. Cao, W. Shi, and L. A. Rusch, “Experimental examination of SSBI suppression using SiP microring Resonators,” in MWP, Beijing, China, Oct. 2017.

[C10] X. Guan, Y. Hong, and C. K. Chan, “Non-orthogonal multiple access in visible light communications with adaptive loading,” in OECC, Singapore, Aug. 2017.

[C9] G. W. Lu, X. Guan, T. Sakamoto, N. Yamamoto, and C. K. Chan, “Simplified self-homodyne detection for optical OFDM with inserted pilot sub-samples and its application in downstream of optical access networks,” in CLEO, San Jose, USA, May 2017.

[C8] Y. Hong, L. K. Chen, and X. Guan, “Adaptive physical-layer network coding over visible light communications,” in OFC, Los Angeles, USA, Mar. 2017.

[C7] Z. Feng, M. Tang, X. Guan, C. K. Chan, Q Wu, X. Chen, R. Wang, R. Lin, S. Fu, L. Deng, and D. Liu, “Spectrally overlaid DDO-OFDM transmission enabled by optical power division multiplexing,” in ICOCN, Hangzhou, China, Sep. 2016.

[C6] Z. Feng, M. Tang, X. Guan, C. K. Chan, Q. Wu, R. Wang, R. Lin, S. Fu, L. Deng, and D. Liu, “ Digital domain power division multiplexing DDO-OFDM transmission with successive interference cancellation,” in CLEO, San Jose, USA, May 2016.

[C5] X. Guan, Y. Hong, and C. K. Chan, “Non-Orthogonal multiple access with multicarrier precoding in visible light communications,” in OECC/PS, Niigata, Japan, Jul. 2016.

[C4] Y. Hong, X. Guan, L. K. Chen, and J. Zhao, “Experimental demonstration of an OCT-based precoding scheme for visible light communications,” in OFC, Anaheim, USA, Mar. 2016.

[C3] X. Guan, Y. Hong, Q. Yang, and C. K. Chan, “Phase pre-distortion for non-orthogonal multiple access in visible light communications,” in OFC, Anaheim, USA, Mar. 2016.

[C2] X. Guan, T. Bo, and C. K. Chan, “Mitigation of inter-carrier interference induced by phase noise and residual carrier frequency offset in CO-OFDM systems,” in Photonics in Switch, Florence, Italy, Sep.

2015.

[C1] X. Guan, T. Bo, and C. K. Chan, “Virtual private networks in OFDM-PON supporting radio-over-fiber based on physical-layer network coding,” in Photonics in Switch, Florence, Italy, Sep. 2015.

M.Phil. Students: Xinyue Wang

Ph.D. Students: Jiaojiao Wang, Yuanzheng Ma