Year
Month
(Peer-Reviewed) Efficient stochastic parallel gradient descent training for on-chip optical processor
Yuanjian Wan 万远剑 ¹ ², Xudong Liu 刘旭东 ¹ ², Guangze Wu 吴广泽 ¹ ², Min Yang 杨敏 ¹ ², Guofeng Yan 颜国锋 ¹ ², Yu Zhang 张宇 ¹ ², Jian Wang 王健 ¹ ²
¹ Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
中国 武汉 华中科技大学光学与电子信息学院 武汉光电国家研究中心
² Optics Valley Laboratory, Wuhan 430074, China
中国 武汉 湖北光谷实验室
Opto-Electronic Advances, 2024-04-25
Abstract

In recent years, space-division multiplexing (SDM) technology, which involves transmitting data information on multiple parallel channels for efficient capacity scaling, has been widely used in fiber and free-space optical communication systems. To enable flexible data management and cope with the mixing between different channels, the integrated reconfigurable optical processor is used for optical switching and mitigating the channel crosstalk.

However, efficient online training becomes intricate and challenging, particularly when dealing with a significant number of channels. Here we use the stochastic parallel gradient descent (SPGD) algorithm to configure the integrated optical processor, which has less computation than the traditional gradient descent (GD) algorithm. We design and fabricate a 6×6 on-chip optical processor on silicon platform to implement optical switching and descrambling assisted by the online training with the SPDG algorithm.

Moreover, we apply the on-chip processor configured by the SPGD algorithm to optical communications for optical switching and efficiently mitigating the channel crosstalk in SDM systems. In comparison with the traditional GD algorithm, it is found that the SPGD algorithm features better performance especially when the scale of matrix is large, which means it has the potential to optimize large-scale optical matrix computation acceleration chips.
Efficient stochastic parallel gradient descent training for on-chip optical processor_1
Efficient stochastic parallel gradient descent training for on-chip optical processor_2
Efficient stochastic parallel gradient descent training for on-chip optical processor_3
Efficient stochastic parallel gradient descent training for on-chip optical processor_4
  • CW laser damage of ceramics induced by air filament
  • Chuan Guo, Kai Li, Zelin Liu, Yuyang Chen, Junyang Xu, Zhou Li, Wenda Cui, Changqing Song, Cong Wang, Xianshi Jia, Ji'an Duan, Kai Han
  • Opto-Electronic Advances
  • 2025-06-27
  • Eco-friendly quantum-dot light-emitting diode display technologies: prospects and challenges
  • Gao Peili, Li Chan, Zhou Hao, He Songhua, Yin Zhen, Ng Kar Wei, Wang Shuangpeng
  • Opto-Electronic Science
  • 2025-06-25
  • Operando monitoring of state of health for lithium battery via fiber optic ultrasound imaging system
  • Chen Geng, Wang Anqi, Zhang Yi, Zhang Fujun, Xu Dongchen, Liu Yueqi, Zhang Zhi, Yan Zhijun, Li Zhen, Li Hao, Sun Qizhen
  • Opto-Electronic Science
  • 2025-06-25
  • Observation of polaronic state assisted sub-bandgap saturable absorption
  • Li Zhou, Yiduo Wang, Jianlong Kang, Xin Li, Quan Long, Xianming Zhong, Zhihui Chen, Chuanjia Tong, Keqiang Chen, Zi-Lan Deng, Zhengwei Zhang, Chuan-Cun Shu, Yongbo Yuan, Xiang Ni, Si Xiao, Xiangping Li, Yingwei Wang, Jun He
  • Opto-Electronic Advances
  • 2025-06-19
  • Three-dimensional measurement enabled by single-layer all-in-one transmitting-receipting optical metasystem
  • Xiaoli Jing, Qiming Liao, Misheng Liang, Bo Wang, Junjie Li, Yongtian Wang, Rui You, Lingling Huang
  • Opto-Electronic Advances
  • 2025-06-19
  • Fast-zoom and high-resolution sparse compound-eye camera based on dual-end collaborative optimization
  • Yi Zheng, Hao-Ran Zhang, Xiao-Wei Li, You-Ran Zhao, Zhao-Song Li, Ye-Hao Hou, Chao Liu, Qiong-Hua Wang
  • Opto-Electronic Advances
  • 2025-06-19
  • Cascaded metasurfaces for adaptive aberration correction
  • Lei Zhang, Tie Jun Cui
  • Opto-Electronic Advances
  • 2025-05-27
  • Embedded solar adaptive optics telescope: achieving compact integration for high-efficiency solar observations
  • Naiting Gu, Hao Chen, Ao Tang, Xinlong Fan, Carlos Quintero Noda, Yawei Xiao, Libo Zhong, Xiaosong Wu, Zhenyu Zhang, Yanrong Yang, Zao Yi, Xiaohu Wu, Linhai Huang, Changhui Rao
  • Opto-Electronic Advances
  • 2025-05-27
  • Spectrally extended line field optical coherence tomography angiography
  • Si Chen, Kan Lin, Xi Chen, Yukun Wang, Chen Hsin Sun, Jia Qu, Xin Ge, Xiaokun Wang, Linbo Liu
  • Opto-Electronic Advances
  • 2025-05-27
  • Wearable photonic smart wristband for cardiorespiratory function assessment and biometric identification
  • Wenbo Li, Yukun Long, Yingyin Yan, Kun Xiao, Zhuo Wang, Di Zheng, Arnaldo Leal-Junior, Santosh Kumar, Beatriz Ortega, Carlos Marques, Xiaoli Li, Rui Min
  • Opto-Electronic Advances
  • 2025-05-27
  • Integrated photonic polarizers with 2D reduced graphene oxide
  • Junkai Hu, Jiayang Wu, Di Jin, Wenbo Liu, Yuning Zhang, Yunyi Yang, Linnan Jia, Yijun Wang, Duan Huang, Baohua Jia, David J. Moss
  • Opto-Electronic Science
  • 2025-05-22
  • Tip-enhanced Raman scattering of glucose molecules
  • Zhonglin Xie, Chao Meng, Donghua Yue, Lei Xu, Ting Mei, Wending Zhang
  • Opto-Electronic Science
  • 2025-05-22



  • Ultrahigh performance passive radiative cooling by hybrid polar dielectric metasurface thermal emitters                                High-intensity spatial-mode steerable frequency up-converter toward on-chip integration
    About
    |
    Contact
    |
    Copyright © PubCard