APL Photonics最新文献

Field-programmable ring array employing AMZI-assisted-MRR structure for photonic signal processor 用于光子信号处理器的采用 AMZI 辅助 MRR 结构的现场可编程环形阵列

APL Photonics Pub Date : 2024-06-01 DOI: 10.1063/5.0209603

Yaohui Sun, Dongyu Wang, Lihan Wang, Yue Zhou, Shilong Pan, Guohua Hu, Bin Yun, Yiping Cui

{"title":"Field-programmable ring array employing AMZI-assisted-MRR structure for photonic signal processor","authors":"Yaohui Sun, Dongyu Wang, Lihan Wang, Yue Zhou, Shilong Pan, Guohua Hu, Bin Yun, Yiping Cui","doi":"10.1063/5.0209603","DOIUrl":"https://doi.org/10.1063/5.0209603","url":null,"abstract":"A field-programmable photonic gate array is an integrated optical chip that combines electrical control and optical processing, enabling real-time reconfiguration of the optical path through software programming. While most current optical processors rely on Mach–Zehnder interferometer (MZI)-based architectures, those based on micro-disk resonators (MDRs) offer unique characteristics, including high integration and wavelength correlation, providing new ideas for programmable photonic chip architectures. In this paper, a scalable asymmetric MZI-assisted field-programmable micro-ring array (AMZI-FPRA) processor is proposed with a cell area of only 85 × 42 µm2. This design not only has high wavelength selectivity but also possesses dual adjustable wavelengths and coupling coefficients compared with traditional MDRs. By extending the cell into a 2 × 2 AMZI-FPRA using a two-dimensional square mesh approach, it is experimentally demonstrated that different optical path topologies can be realized with a compact footprint, including bandpass bandstop filtering, optical temporal differentiation, microwave delay, wavelength-division multiplexing/demultiplexing, and optical add-drop multiplexing. Increasing the array scale will enable more versatile and high-performance microwave photonic signal processing tasks. The scheme will be a promising candidate at the present time for reconfigurable programmable photonic signal processors due to its wide reconfigurability, on-chip integration, complementary metal–oxide–semiconductor-compatibility, and low power consumption.","PeriodicalId":504565,"journal":{"name":"APL Photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141405951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-performance photon number resolving detectors for 850–950 nm wavelength range 用于 850-950 纳米波长范围的高性能光子数分辨探测器

APL Photonics Pub Date : 2024-06-01 DOI: 10.1063/5.0204340

J. W. N. Los, Mariia Sidorova, Bruno Lopez-Rodriguez, Patrick Qualm, Jin Chang, S. Steinhauer, V. Zwiller, I. Zadeh

{"title":"High-performance photon number resolving detectors for 850–950 nm wavelength range","authors":"J. W. N. Los, Mariia Sidorova, Bruno Lopez-Rodriguez, Patrick Qualm, Jin Chang, S. Steinhauer, V. Zwiller, I. Zadeh","doi":"10.1063/5.0204340","DOIUrl":"https://doi.org/10.1063/5.0204340","url":null,"abstract":"Since their first demonstration in 2001 [Gol’tsman et al., Appl. Phys. Lett. 79, 705–707 (2001)], superconducting-nanowire single-photon detectors (SNSPDs) have witnessed two decades of great developments. SNSPDs are the detector of choice in most modern quantum optics experiments and are slowly finding their way into other photon-starved fields of optics. Until now, however, in nearly all experiments, SNSPDs were used as “binary” detectors, meaning that they could only distinguish between 0 and >=1 photons, and photon number information was lost. Recent research has demonstrated proof-of-principle photon-number resolution (PNR) SNSPDs counting 2–5 photons. The photon-number-resolving capability is highly demanded in various quantum-optics experiments, including Hong–Ou–Mandel interference, photonic quantum computing, quantum communication, and non-Gaussian quantum state preparation. In particular, PNR detectors at the wavelength range of 850–950 nm are of great interest due to the availability of high-quality semiconductor quantum dots (QDs) [Heindel et al., Adv. Opt. Photonics 15, 613–738 (2023)] and high-performance cesium-based quantum memories [Ma et al., J. Opt. 19, 043001 (2017)]. In this paper, we demonstrate NbTiN-based SNSPDs with >94% system detection efficiency, sub-11 ps timing jitter for one photon, and sub-7 ps for 2 photons. More importantly, our detectors resolve up to 7 photons using conventional cryogenic electric readout circuitry. Through theoretical analysis, we show that the PNR performance of demonstrated detectors can be further improved by enhancing the signal-to-noise ratio and bandwidth of our readout circuitry. Our results are promising for the future of optical quantum computing and quantum communication.","PeriodicalId":504565,"journal":{"name":"APL Photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141392970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Enhanced efficiency of correlated photon pairs generation in silicon nitride with a low-loss 3D edge coupler 利用低损耗 3D 边缘耦合器提高氮化硅中相关光子对的生成效率

APL Photonics Pub Date : 2024-06-01 DOI: 10.1063/5.0198693

Xiaotian Zhu, Chang-Xin Wang, B. E. Little, Z. Ou, S. Chu, L. Cui, Xiaoying Li

引用次数: 0

Ultrasensitive terahertz response mediated by split ring antenna induced giant resonant field enhancement 由分裂环形天线诱导的巨谐振场增强所介导的超灵敏太赫兹响应

APL Photonics Pub Date : 2024-06-01 DOI: 10.1063/5.0205333

Jinhua Zhang, M. Cai, Xingguo Zheng, Dangdang Li, Shuxiang Ma, Xuebao Li, Jingjing Fu, Yinghao Yuan, Lin Chen, Xuguang Guo, Yiming Zhu, Songlin Zhuang

{"title":"Ultrasensitive terahertz response mediated by split ring antenna induced giant resonant field enhancement","authors":"Jinhua Zhang, M. Cai, Xingguo Zheng, Dangdang Li, Shuxiang Ma, Xuebao Li, Jingjing Fu, Yinghao Yuan, Lin Chen, Xuguang Guo, Yiming Zhu, Songlin Zhuang","doi":"10.1063/5.0205333","DOIUrl":"https://doi.org/10.1063/5.0205333","url":null,"abstract":"Optical resonators are widely utilized to enhance light–matter interaction by focusing electromagnetic waves into deep sub-wavelength regions. Here, we first present a metallic bowtie split ring (BSR) optical resonator as an asymmetric light coupler for a terahertz (THz) graphene photothermoelectric (PTE) detector. The giant THz field enhancement in the slit region of BSR is mediated by two types of resonances: the inductor–capacitor (LC) and the dipole resonances, which greatly increase the THz absorption, resulting in the sensitivity improvement of the THz PTE detector. In detail, the LC and dipole resonant behaviors of BSR are systematically investigated in both theoretical and experimental aspects. Compared with the dipole resonance, the LC resonance leads to stronger electric field localization and enhancement. An optimized BSR is designed and integrated with a graphene THz PTE detector, and an ultrasensitive THz PTE response is demonstrated. At room temperature and in zero-bias mode, the key detection parameters—responsivity, sensitivity (noise-equivalent power), and speed—are 138 V/W, 25 pW/Hz1/2, and 3.7 µs, respectively. Our results indicate that the LC resonance supported by BSR can introduce strong local field enhancement, which is helpful for realizing high sensitivity THz detectors.","PeriodicalId":504565,"journal":{"name":"APL Photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141412790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On-chip quasi-light storage for long optical delays using Brillouin scattering 利用布里渊散射实现长光延迟的片上准光存储

APL Photonics Pub Date : 2024-05-01 DOI: 10.1063/5.0193174

M. Merklein, Lachlan Goulden, Max Kiewiet, Yang Liu, C. Lai, Duk-Yong Choi, Stephen J. Madden, C. G. Poulton, Benjamin J. Eggleton

{"title":"On-chip quasi-light storage for long optical delays using Brillouin scattering","authors":"M. Merklein, Lachlan Goulden, Max Kiewiet, Yang Liu, C. Lai, Duk-Yong Choi, Stephen J. Madden, C. G. Poulton, Benjamin J. Eggleton","doi":"10.1063/5.0193174","DOIUrl":"https://doi.org/10.1063/5.0193174","url":null,"abstract":"Efficient and extended light storage mechanisms are pivotal in photonics, particularly in optical communications, microwave photonics, and quantum networks, as they offer a direct route to circumvent electrical conversion losses and surmount bandwidth constraints. Stimulated Brillouin Scattering (SBS) is an established method to store optical information by transferring it to the acoustic domain, but current on-chip SBS efforts have limited bandwidth or storage time due to the phonon lifetime of several nanoseconds. An alternate approach known as quasi-light storage (QLS), which involves the creation of delayed replicas of optical data pulses via SBS in conjunction with a frequency comb, has been proposed to lift the storage time constraint; however, its realization has been confined to lengthy optical fibers, constraining integration with on-chip optical elements and form factors. Here, we present an experimental demonstration of QLS on a photonic chip leveraging the large SBS gain of chalcogenide glass, achieving delays of up to 500 ns for 1 ns long signal pulses, surpassing typical Brillouin storage processes' acoustic lifetime by more than an order of magnitude and waveguide transit time by two orders of magnitude. We experimentally and numerically investigate the dynamics of on-chip QLS and reveal that the interplay between the acoustic wave that stores the optical signal and subsequent optical pump pulses leads to a reshaping of the acoustic field. Our demonstrations illustrate the potential for achieving ultra-long storage times of individual pulses by several hundred pulse widths, marking a significant stride toward advancing the field of all-optical storage and delay mechanisms.","PeriodicalId":504565,"journal":{"name":"APL Photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141049520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scaling photonic integrated circuits with InP technology: A perspective 利用 InP 技术扩展光子集成电路：透视

APL Photonics Pub Date : 2024-05-01 DOI: 10.1063/5.0200861

Yi Wang, Yuqing Jiao, Kevin Williams

引用次数: 0

Photon-pair generation using inverse-designed thin-film lithium niobate mode converters 利用反向设计的薄膜铌酸锂模式转换器生成光子对

APL Photonics Pub Date : 2024-05-01 DOI: 10.1063/5.0192026

Kiwon Kwon, Hyungjun Heo, Dongjin Lee, Hyeongpin Kim, Hyeong-Soon Jang, Woncheol Shin, Hyang-Tag Lim, Yong-Su Kim, Sang-Wook Han, Sangin Kim, Heedeuk Shin, Hyounghan Kwon, Hojoong Jung

{"title":"Photon-pair generation using inverse-designed thin-film lithium niobate mode converters","authors":"Kiwon Kwon, Hyungjun Heo, Dongjin Lee, Hyeongpin Kim, Hyeong-Soon Jang, Woncheol Shin, Hyang-Tag Lim, Yong-Su Kim, Sang-Wook Han, Sangin Kim, Heedeuk Shin, Hyounghan Kwon, Hojoong Jung","doi":"10.1063/5.0192026","DOIUrl":"https://doi.org/10.1063/5.0192026","url":null,"abstract":"Spontaneous parametric down-conversion (SPDC) has become a key method for generating entangled photon pairs. Periodically poled thin-film lithium niobate (TFLN) waveguides induce strong SPDC but require complex fabrication processes. In this work, we experimentally demonstrate efficient SPDC and second harmonic generation using modal phase matching methods. This is achieved with inverse-designed optical mode converters and low-loss optical waveguides in a single nanofabrication process. Inverse design methods provide enhanced functionalities and compact footprints for the converter. Despite the extensive achievements in inverse-designed photonic integrated circuits, the potential of inverse-designed TFLN quantum photonic devices has been seldom explored. The device shows an on-chip conversion efficiency of 3.95% W−1 cm−2 in second harmonic generation measurements and a coincidence count rate up to 21.2 kHz in SPDC experiments. This work highlights the potential of the inverse-designed TFLN photonic devices and paves the way for their applications in on-chip nonlinear or quantum optics.","PeriodicalId":504565,"journal":{"name":"APL Photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141045742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0