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Analog parallel processor for broadband multifunctional integrated system based on silicon photonic platform

Light(Science & Applications) 2025年第3期14卷 746-756页

作者： Na Qian Defu Zhou Haowen Shu Ming Zhang Xingjun Wang Daoxin Dai Xiao Deng Weiwen Zou State Key Laboratory of Advanced Optical Communication Systems and Networks Intelligent Microwave Lightwave Integration Innovation Center(imLic)Department of Electronic EngineeringShanghai Jiao Tong UniversityShanghaiChina State Key Laboratory of Advanced Optical Communications System and Networks Department of ElectronicsSchool of Electronics Engineering and Computer SciencePeking UniversityBejingChina State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityHangzhouChina

Sharing the hardware platform between diverse information systems to establish full cooperation among different functionalities has attracted substantial ***,broadband multifunctional integrated systems with large operating frequency ranges are challenging due to the bandwidth and computing speed restrictions of electronic ***,we report an analog parallel processor(APP)based on the silicon photonic platform that directly discretizes and parallelizes the broadband signal in the analog *** APP first discretizes the signal with the optical frequency comb and then adopts optical dynamic phase interference to reassign the analog signal into 2N parallel *** photonic analog parallelism,data rate and data volume in each sequence are simultaneously compressed,which mitigates the requirement on each parallel computing ***,the fusion of the outputs from each computing core is equivalent to directly processing broadband *** the proof-of-concept experiment,two-channel analog parallel processing of broadband radar signals and high-speed communication signals is implemented on the single photonic integrated *** bandwidth of broadband radar signal is 6 GHz and the range resolution of 2.69 cm is *** wireless communication rate of 8 Gbit/s is also *** the bandwidth and speed limitations of the single-computing core along with further exploring the multichannel potential of this architecture,we anticipate that the proposed APP will accelerate the development of powerful optoelectronic processors as critical support for applications such as satellite networks and intelligent driving.

关键词： analog parallel processor sharing hardware platform multifunctional integrated systems establish full cooperation different functionalities analog parallel processor app based silicon photonic platform electronic circuitryherewe broadband signal

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Polarization-induced photocurrent switching effect in heterojunction photodiodes

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Nano Research 2023年第4期16卷 5503-5510页

作者： Dingbo Chen Yu-Chang Chen Guang Zeng Yu-Chun Li Xiao-Xi Li Dong Li Chao Shen Nan Chi Boon S.Ooi David Wei Zhang Hong-Liang Lu State Key Laboratory of ASIC and System Shanghai Institute of Intelligent Electronics&SystemsSchool of MicroelectronicsFudan UniversityShanghai 200433China Key Laboratory for Information Science of Electromagnetic Waves Department of Communication Science and EngineeringFudan UniversityShanghai 200433China Photonics Laboratory Division of ComputerElectricaland Mathematical Sciences and EngineeringKing Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Kingdom of Saudi Arabia

The unipolar photocurrent in conventional photodiodes(PDs)based on photovoltaic effect limits the output modes and potential versatility of these devices in *** photodiodes with photocurrent switching are emerging as a promising solution for obtaining photoelectric devices with unique and attractive functions,such as optical logic ***,we design an all-solid-state chip-scale ultraviolet(UV)PD based on a hybrid GaN heterojunction with engineered bipolar polarized electric *** introducing the polarization-induced photocurrent switching effect,the photocurrent direction can be switched in response to the wavelength of incident light at 0 V *** particular,the photocurrent direction exhibits negative when the irradiation wavelength is less than 315 nm,but positive when the wavelength is longer than 315 *** device shows a responsivity of up to−6.7 mA/W at 300 nm and 5.3 mA/W at 340 nm,*** particular,three special logic gates in response to different dual UV light inputs are demonstrated via a single bipolar PD,which may be beneficial for future multifunctional UV photonic integrated devices and systems.

关键词： GaN heterostructure ultraviolet(UV)photodiodes bipolar photocurrent optical logic device

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Recent progress of integrated circuits and optoelectronic chips

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Science China(Information Sciences) 2021年第10期64卷 103-135页

作者： Yue HAO Shuiying XIANG Genquan HAN Jincheng ZHANG Xiaohua MA Zhangming ZHU Xingxing GUO Yahui ZHANG Yanan HAN Ziwei SONG Yan LIU Ling YANG Hong ZHOU Jiangyi SHI Wei ZHANG Min XU Weisheng ZHAO Biao PAN Yangqi HUANG Qi LIU Yimao CAI Jian ZHU Xin OU Tiangui YOU Huaqiang WU Bin GAO Zhiyong ZHANG Guoping GUO Yonghua CHEN Yong LIU Xiangfei CHEN Chunlai XUE Xingjun WANG Lixia ZHAO Xihua ZOU Lianshan YAN Ming LI School of Microelectronics Xidian University State Key Laboratory of Integrated Service Networks Xidian University National Integrated Circuit Innovation Center School of Microelectronics Fudan University School of Integrated Circuit Science and Engineering Beihang University China Center for Information Industry Development Frontier Institute of Chip and System Fudan University Institute of Microelectronics Peking University Nanjing Electronic Devices Institute State Key Laboratory of Functional Material for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Institute of Microelectronics Tsinghua University Center for Carbon-based Electronics Department of Electronics Peking University CAS Key Laboratory of Quantum Information University of Science and Technology of China CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics University of Science and Technology of China Origin Quantum Computing Company Limited Key Laboratory of Flexible Electronics & Institute of Advanced Materials Nanjing Tech University State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of China National Laboratory of Solid State Microstructures & College of Engineering and Applied Sciences Nanjing University State Key Laboratory on Integrated Optoelectronics Institute of Semiconductors Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences State Key Laboratory of Advanced Optical Communication Systems and Networks School of Electronics Engineering and Computer Science Peking University School of Electrical and Electronic Engineering Tiangong University Center for Information Photonics and Communications School of Information Science and TechnologySouthwest Jiaotong University School of Electronic Electrical and Communication Engineering

Integrated circuits(ICs) and optoelectronic chips are the foundation stones of the modern information society. The IC industry has been driven by the so-called "Moore's law" in the past 60 years, and now has entered the post Moore's law era. In this paper, we review the recent progress of ICs and optoelectronic chips. The research status, technical challenges and development trend of devices, chips and integrated technologies of typical IC and optoelectronic chips are focused on. The main contents include the development law of IC and optoelectronic chip technology, the IC design and processing technology, emerging memory and chip architecture, brain-like chip structure and its mechanism, heterogeneous integration, quantum chip technology, silicon photonics chip technology, integrated microwave photonic chip, and optoelectronic hybrid integrated chip.

关键词： integrated circuit semiconductor science and technology optoelectronic device and chip photonic integrated circuit wide bandgap semiconductors silicon photonics hybrid integration quantum chip integrated microwave photonic photonic neural computing

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In situ aberration measurement technique based on multi-illumination settings and principal component analysis of aerial images

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Chinese optics Letters 2012年第12期10卷 35-38页

作者： A.W.Al-Alimi A.F.Abas M.A.Mahdi M.H.Al-Mansoori M.Mokhtar Wireless and Photonic Networks Research Centre Englneering and Technology ComplexUniversiti Putra Malaysia43400 SerdangSelangorMalaysia Photonics and Fiber Optic Systems Laboratory Department of Computer and Communication Systems Engineering Universiti Putra Malaysia43400 SerdangSelangorMalaysia Faculty of Engineering Sohar UniversityP.O Box 44 Sohar P.C.311Oman

A multiwavelength Brillouin/erbium fiber laser （BEFL） with low threshold power is realized. A low threshold power of 3 mW and a wide tuning range of 18 nm can be achieved by controlling the reflected power in the nonlinear optical loop mirror （NOLM）. Up to 24 lines with a wavelength spacing of 0,086 nm are generated at the Brillouin pump and at the 1 480-nm pump with -0.5 dBm （0.9 roW） and 25 mW of power, respectively.

关键词： 140.3510 Lasers, fiber 290.5900 Scattering, stimulated Brillouin 060.2410 fibers, erbium

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Multiwavelength Brillouin erbium fiber laser in virtual linear cavity

Multiwavelength Brillouin erbium fiber laser in virtual line...

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International Conference on photonics (ICP)

作者： A. W. Al-Alimi A. F. Abas M. A. Mahdi M. H. Al-Mansoori M. Mokhtar Wireless and Photonic Networks Research Centre Engineering and Technology Complex Photonics and Fiber Optic Systems Laboratory Department of Computer and Communication Systems Engineering Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia Faculty of Engineering Sohar University Sohar Oman

A multiple wavelength Brillouin/erbium fiber laser in a virtual linear cavity configuration is demonstrated. The virtual linear cavity is formed by utilizing a double pass amplification box at one end of the cavity, and a virtual mirror on the other end. The virtual mirror is created by the stimulated Brillouin scattering (SBS) effect in standard single mode fiber. The tunability limitation of conventional MWBEFLs is eliminated by using half mirrorless linear cavity technique. Due to the large amount of gain achieved by the double pass amplification box, 7 Stokes lines are achieved at pump power and Brillouin pump power of 130 mW And 0 dBm, respectively. Up to 4 channels can be freely tuned over a tuning range of 37.5 nm from 1530 nm 1567 nm.

关键词： Scattering Cavity resonators Erbium-doped fiber lasers optical fiber amplifiers Laser excitation Laser tuning

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Effect of temperature and external optical feedback on intensity and phase noise characteristics in single-mode fiber grating Fabry-Perot laser

Effect of temperature and external optical feedback on inten...

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International Conference on photonics (ICP)

作者： H. K. Hisham A. F. Abas G. A. Mahdiraji M. A. Mandi F. R. Mahamd Adikan Wireless and Photonic Networks Research Centre Engineering and Technology Complex Photonics and Fiber optic Systems Laboratory Department of Computer and Communication Systems Engineering Faculty of Engineering Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia Flat Fibre Laboratory Department of Electrical Engineering Faculty of Engineering University of Malaya Kuala Lumpur Malaysia

The combined effect of temperature variation and external optical feedback (OFB) on the relative intensity noise (RIN) and phase noise (FN) characteristics of fiber grating Fabry-Perot (FGFP) laser for the first time, is investigated numerically by modifying the well-known laser rate equations. The temperature dependence (TD) of RIN and FN characteristics is calculated according to TD of laser cavity parameters; not by using the well-known Pankove equation. The effect of external OFB on RIN and FN characteristics is calculated according to its effect on laser threshold carrier density. The simulation of the frequency spectra of RIN and FN are performed by fast Fourier transform (FFT). We show that FBG can be use to control the external OFB level, thereby; controlling noise level of the laser. Results show that the optimum range of working temperature for FGFP laser for low noise characteristic is within ±2 °C from the FBG reference temperature.

关键词： photonics Decision support systems

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Effect of fiber profile parameters on the transmission properties of the tapered optical fibers

Effect of fiber profile parameters on the transmission prope...

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2011 IEEE 2nd International Conference on photonics, ICP 2011

作者： Musa, B. Rozi, A.A. Noor, A.S.M. Ismail, A. Mahdi, M.A. Faculty of Electrical Engineering Universiti Teknologi MARA Terengganu 23000 Dungun Malaysia Photonics and Fiber Optic Systems Laboratory Department of Computer and Communication Systems Engineering Universiti Putra Malaysia Malaysia

ISBN: (纸本)9781612842646

We fabricated a tapered optical fiber using a Vytran fiber tapering workstation which utilizes a filament as the heat source. The tapered fibers were fabricated with varying dimensions in order to study their effects on the transmission properties. The tapers were characterized by monitoring their transmission during and after tapering process. These transmissions were normalized to the transmission spectra of the untapered fiber. Taper angle was found to influence the transmission with larger angle contribute to a higher losses. Power loss of the best taper parameter is about 40 percent which resulted by small taper angle of 5.7mrad. Overall length of the taper also affects the transmission with shorter taper having a longer free spectral range (distance between two successive peaks in the transmission spectrum). © 2011 IEEE.

关键词： optical fibers

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Effect of fiber profile parameters on the transmission properties of the tapered optical fibers

Effect of fiber profile parameters on the transmission prope...

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International Conference on photonics (ICP)

作者： B. Musa A. A. Rozi A. S. M. Noor A. Ismail M. A. Mahdi Photonics and Fiber Optic Systems Laboratory Department of Computer and Communication Systems Engineering Faculty of Engineering Universiti Putra Malaysia Serdang Malaysia

关键词： optical fibers Monitoring Temperature sensors Temperature measurement optical device fabrication optical imaging

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Bidirectionally-pumped remote L-band EDFA module utilizing stimulated Raman scattering

Bidirectionally-pumped remote L-band EDFA module utilizing s...

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International Conference on photonics (ICP)

作者： M. H. Abu Bakar A. F. Abas M. Mokhtar M. A. Mahdi Photonic & Fiber Optic Systems Laboratory Department of Computer and Communication Systems Engineering Faculty of Engineering Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia

This research was centered on an enhanced bidirectionally-pumped remote L-band erbium-doped fiber amplifier (EDFA) module. The amplifier was backward-pumped using 1455 nm Raman laser while the SRS generated in the delivery line pumped the remote EDFA in the forward direction. Gain values around 12 dB and 9 dB were measured for input signal of -30 and 0 dBm respectively. Excellent gain flatness was observed for both input levels with similar maximum gain variation of only 1.2 dB. -30 dBm input produced high noise figures up to 11.6 at the shorter wavelengths which declined as the signal moved further across the L-band window. The same trend was observed for 0 dBm input where at 1570 nm, 12.1 dB noise figure was acquired and went down to 7.2 dB at 1605 nm. Gain and noise figure behaviors were attributed to the gain competition due to the presence of the SRS, which was inadvertently amplified as well. The use of longer EDF length or careful selection of the pump wavelength can be considered to optimize the amplifier design.

关键词： photonics Gain measurement Stimulated emission Wavelength division multiplexing

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Enhanced brillouin-erbium fiber laser with brillouin pump pre-amplification technique

Enhanced brillouin-erbium fiber laser with brillouin pump pr...

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IEEE 2008 6th National Conference on Telecommunication Technologies and IEEE 2008 2nd Malaysia Conference on photonics, NCTT-MCP 2008

作者： Al-mansoori, M.H. Mahdi, M.A. Jamaludin, M.Z. Abdulla, M.K. Faculty of Engineering and Technology Multimedia University Jalan Ayer Keroh Lama 75450 Melaka Malaysia Photonics and Fiber Optic System LaboratoryFaculty of Engineering University Putra Malaysia 43400 UPM Serdang Selangor Malaysia Department of Electronic and Communication Engineering Faculty of Engineering University Tenaga Nasional Malaysia

ISBN: (纸本)9781424422159

We demonstrate an enhanced multiwavelength Brillouin-Erbium comb fiber-laser in which the Brillouinpump is pre-amplified before entering the single-mode fiber. By using this simple scheme, a lower external Brillouin pump power is required to create the Brillouin gain and suppress the laser cavity modes as compared to direct injection of Brillouin pump into the single-mode fiber. The proposed technique also demonstrates that the BEFL exhibits a wide tunability and can produce up to 27-stable output channels with 10.5 GHz channels spacing. © 2008 IEEE.

关键词： Single mode fibers

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