MMM
YYYY
Low-loss chip-scale programmable silicon photonic processor
低损耗芯片级可编程硅光子处理器
低損失チップレベルプログラマブルシリコンフォトニックプロセッサ
저손실 칩급 프로그래밍 가능한 실리콘 광자 프로세서
Procesador fotónico de silicio programable a nivel de chip de baja pérdida
Processeur photonique en silicium programmable à faible perte
Программируемый кремниевый фотонный процессор с низким уровнем потерь
Yiwei Xie ¹, Shihan Hong ¹, Hao Yan ¹, Changping Zhang ¹, Long Zhang ¹, Leimeng Zhuang ², Daoxin Dai ¹ ³
¹ Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang Provincial Key Laboratory for Sensing Technologies, Zhejiang University, Zijingang Campus, Hangzhou 310058, China
中国 杭州 浙江大学 紫金港校区 现代光学仪器国家重点实验室 浙江省智能传感材料与芯片集成技术重点实验室 光及电磁波研究中心
² Imec USA, Nanoelectronics Design Center, Inc., 194 Neocity Way, Kissimmee, FL34744, USA
³ Ningbo Research Institute, Zhejiang University, Ningbo 315100, China
中国 宁波 浙江大学宁波研究院
Opto-Electronic Advances, 28 October 2022
Abstract

Chip-scale programmable optical signal processors are often used to flexibly manipulate the optical signals for satisfying the demands in various applications, such as lidar, radar, and artificial intelligence. Silicon photonics has unique advantages of ultra-high integration density as well as CMOS compatibility, and thus makes it possible to develop large-scale programmable optical signal processors. The challenge is the high silicon waveguides propagation losses and the high calibration complexity for all tuning elements due to the random phase errors.

In this paper, we propose and demonstrate a programmable silicon photonic processor for the first time by introducing low-loss multimode photonic waveguide spirals and low-random-phase-error Mach-Zehnder switches. The present chip-scale programmable silicon photonic processor comprises a 1×4 variable power splitter based on cascaded Mach-Zehnder couplers (MZCs), four Ge/Si photodetectors, four channels of thermally-tunable optical delaylines. Each channel consists of a continuously-tuning phase shifter based on a waveguide spiral with a micro-heater and a digitally-tuning delayline realized with cascaded waveguide-spiral delaylines and MZSs for 5.68 ps time-delay step.

Particularly, these waveguide spirals used here are designed to be as wide as 2 µm, enabling an ultralow propagation loss of 0.28 dB/cm. Meanwhile, these MZCs and MZSs are designed with 2-µm-wide arm waveguides, and thus the random phase errors in the MZC/MZS arms are negligible, in which case the calibration for these MZSs/MZCs becomes easy and furthermore the power consumption for compensating the phase errors can be reduced greatly.

Finally, this programmable silicon photonic processor is demonstrated successfully to verify a number of distinctively different functionalities, including tunable time-delay, microwave photonic beamforming, arbitrary optical signal filtering, and arbitrary waveform generation.
Opto-Electronic Advances_1
Opto-Electronic Advances_2
Opto-Electronic Advances_3
Opto-Electronic Advances_4
Reviews and Discussions
https://www.hotpaper.io/index.html
Measurement of optical coherence structures of random optical fields using generalized Arago spot experiment
Specialty optical fibers for advanced sensing applications
Periodic transparent nanowires in ITO film fabricated via femtosecond laser direct writing
Chiral detection of biomolecules based on reinforcement learning
High-speed visible light communication based on micro-LED: A technology with wide applications in next generation communication
Directional high-efficiency nanowire LEDs with reduced angular color shift for AR and VR displays
Comparative analysis of NovaSeq 6000 and MGISEQ 2000 single-cell RNA sequencing data
Integrated liver proteomics and metabolomics identify metabolic pathways affected by pantothenic acid deficiency in Pekin ducks
Photo-processing of perovskites: current research status and challenges
Influence of N-doping on dielectric properties of carbon-coated copper nanocomposites in the microwave and terahertz ranges
Towards integrated mode-division demultiplexing spectrometer by deep learning
Discovery of novel aspartate derivatives as highly potent and selective FXIa inhibitors



Previous Article                                Next Article
About
|
Contact
|
Copyright © Hot Paper