IEEE Photonics Technology Letters最新文献_第6页

Multi-Wavelength Achromatic Imaging With a Pleochroic Confocal Photon Sieve

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-13 DOI: 10.1109/LPT.2025.3541195

Yuanyuan Liu;Yuanhao Bao;Junyong Zhang;Qiwen Zhan

{"title":"Multi-Wavelength Achromatic Imaging With a Pleochroic Confocal Photon Sieve","authors":"Yuanyuan Liu;Yuanhao Bao;Junyong Zhang;Qiwen Zhan","doi":"10.1109/LPT.2025.3541195","DOIUrl":"https://doi.org/10.1109/LPT.2025.3541195","url":null,"abstract":"Achromatic performance is crucial for a variety of multi-wavelength optical imaging applications due to conventional diffractive optical elements suffer from large chromatic aberration. Here, we introduce a multi-wavelength achromatic imaging system utilizing a pleochroic confocal photon sieve (PCPS). In this technique, three foci at three different wavelengths are designed to coexist at various spatial locations on the same plane. Characterization results demonstrate achromatic focus performance at specified wavelengths, and the optimal full width at half maximum (FWHM) of point spread function (PSF) indicate that our device can achieve an optical imaging resolution of <inline-formula> <tex-math>$5~mu $ </tex-math></inline-formula>m across all designated wavelengths. Furthermore, we also explored the potential application of the PCPS in single-frame multi-wavelength coherent diffraction imaging (CDI), and preliminary experimental results are presented to confirm the effectiveness of the proposed method. The proposed PCPS exhibits a minimal thickness and demonstrates high design flexibility in focal length and incident wavelengths, providing new opportunities for the development of achromatic imaging systems and RGB holographic displays.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 5","pages":"285-288"},"PeriodicalIF":2.3,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultra-Compact Silicon-Based 1×8 Power Splitter Based on Digital Metamaterials

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-11 DOI: 10.1109/LPT.2025.3540921

Jiazhu Duan;Cangli Liu;Jiancheng Zeng;Yongquan Luo;Li Liu;Xiangjie Zhao;Dayong Zhang

{"title":"Ultra-Compact Silicon-Based 1×8 Power Splitter Based on Digital Metamaterials","authors":"Jiazhu Duan;Cangli Liu;Jiancheng Zeng;Yongquan Luo;Li Liu;Xiangjie Zhao;Dayong Zhang","doi":"10.1109/LPT.2025.3540921","DOIUrl":"https://doi.org/10.1109/LPT.2025.3540921","url":null,"abstract":"We present the design and experimental verification of an ultra-compact <inline-formula> <tex-math>$1times 8$ </tex-math></inline-formula> power splitter utilizing digital metamaterials. Our splitter leverages the direct binary search algorithm to optimize the pixelated design space, ensuring symmetric and efficient power distribution across the eight output waveguides. This design achieves a notably small footprint, low insertion loss, and excellent uniformity performance at the communication wavelength of 1550 nm. To validate our approach, we fabricated a <inline-formula> <tex-math>$1times 8$ </tex-math></inline-formula> power splitter on a silicon-on-insulator (SOI) platform, featuring ultra-compact length and space of just <inline-formula> <tex-math>$5.33~mu $ </tex-math></inline-formula>m and <inline-formula> <tex-math>$56.12~mu $ </tex-math></inline-formula>m2 respectively. This size represents a reduction of 1-2 orders of magnitude compared to previously reported values. Experimental results reveal an impressive insertion loss of 0.66 dB and a good uniformity of 0.42 dB at the center wavelength. Furthermore, the total loss remains below 1 dB across a wavelength range spanning from 1542.2 nm to 1553.5 nm. When compared to existing solutions, our designed splitter demonstrates superior performance in terms of size, insertion loss and uniformity. These attributes make this high-performance <inline-formula> <tex-math>$1times 8$ </tex-math></inline-formula> power splitter a promising candidate for applications in large-scale on-chip optical networks and optical phased arrays.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 6","pages":"317-320"},"PeriodicalIF":2.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bandpass Half-Mode Substrate Integrated Plasmonic Filters With Steep Roll-Offs

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-11 DOI: 10.1109/LPT.2025.3540928

Jinhong Wang;Lijie Cao;Haojun Ru;Weibin Cai;Binfeng Yang;Longfang Ye

{"title":"Bandpass Half-Mode Substrate Integrated Plasmonic Filters With Steep Roll-Offs","authors":"Jinhong Wang;Lijie Cao;Haojun Ru;Weibin Cai;Binfeng Yang;Longfang Ye","doi":"10.1109/LPT.2025.3540928","DOIUrl":"https://doi.org/10.1109/LPT.2025.3540928","url":null,"abstract":"This letter presents a bandpass half-mode substrate integrated plasmonic filter (HMSIPF) utilizing spoof surface plasmon polaritons (SSPPs). The HMSIPF consists of a half-mode substrate integrated waveguide (HMSIW) with a periodic square spiral array etching onto the top metal layer. Additionally, two C-ring resonators are etched on both the top and bottom metal layers to introduce an extra transmission zero, enabling a sharp lower roll-off in the filter response without increasing its physical size. A prototype of the HMSIPF was fabricated and evaluated against comparable filters. Measured results demonstrate that the HMSIPF achieves a high transmission coefficient (|S21| > −0.8 dB) and a low reflection coefficient (|S11| < −12 dB) across a wide passband of 5.0-9.0 GHz, corresponding to a fractional bandwidth (FBW) of 57.1%. It also exhibits a steep roll-off with a shape factor of 1.22, along with a compact size of <inline-formula> <tex-math>$1.44lambda _{mathbf {g}} times 0.37lambda _{mathbf {g}}$ </tex-math></inline-formula>. This HMSIPF design advances the practicality of SSPP-based circuits and holds significant potential for microwave integrated plasmonic circuits and systems, offering excellent filtering performance.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 5","pages":"269-272"},"PeriodicalIF":2.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Integrated Photonic Convolution Accelerator Empowered by Thin-Film Lithium Niobate Modulators

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-11 DOI: 10.1109/LPT.2025.3541048

Haojun Zhou;Bo Wu;Shiji Zhang;Mengyue Xu;Jingyi Wang;Hailong Zhou;Xinlun Cai;Jianji Dong

引用次数: 0

Study of Pyroelectric Suppression Method for LiNbO₃ E-O Modulator

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-11 DOI: 10.1109/LPT.2025.3540936

Peiji Sun;Xuan She;Lei Zhang;Haoyi Han;Ran Bi;Heliang Shen;Fei Huang;Lei Wang;Xiaowu Shu

{"title":"Study of Pyroelectric Suppression Method for LiNbO₃ E-O Modulator","authors":"Peiji Sun;Xuan She;Lei Zhang;Haoyi Han;Ran Bi;Heliang Shen;Fei Huang;Lei Wang;Xiaowu Shu","doi":"10.1109/LPT.2025.3540936","DOIUrl":"https://doi.org/10.1109/LPT.2025.3540936","url":null,"abstract":"The pyroelectric effect in <inline-formula> <tex-math>${mathbf {LiNbO}}_{mathbf {3}}$ </tex-math></inline-formula> electro-optic (E-O) modulators leads to bias instability in temperature variation environments. In this study, the pyroelectric model of X-cut <inline-formula> <tex-math>${mathbf {LiNbO}}_{mathbf {3}}$ </tex-math></inline-formula> modulator is established for the first time. Simulations of pyroelectric responses under a fixed rate of 2 K/min are conducted, testing two suppression methods: grounding the <inline-formula> <tex-math>$boldsymbol {pm Z}$ </tex-math></inline-formula> polarization planes and adding surface grounded electrodes, with the latter showing a decrease in the pyroelectric voltage drop by 29.75%. The temperature experiment on the fabricated X-cut <inline-formula> <tex-math>${mathbf {LiNbO}}_{mathbf {3}}$ </tex-math></inline-formula> modulator with foldback form reveals that short-circuiting the electrodes could eliminate the pyroelectric pulse discharge phenomenon. Further coating electrically conductive adhesive(ECA) to act as grounded electrodes could suppress pyroelectric secondary oscillations, which shows a reduction of 44.96%. The proposed pyroelectric suppression methods provide a potential improvement strategy for enhancing bias stability in phase-sensitive devices based on <inline-formula> <tex-math>${mathbf {LiNbO}}_{mathbf {3}}$ </tex-math></inline-formula> materials.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 6","pages":"329-332"},"PeriodicalIF":2.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143553457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optical Packaging of Surface-Normal Electroabsorption Modulator Arrays Using Passive Alignment

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-11 DOI: 10.1109/LPT.2025.3541016

Stefano Grillanda;Nagesh Basavanhally;Ting-Chen Hu;Rick Papazian;Mark Cappuzzo;Alaric Tate;Mark Earnshaw;Rose Kopf;Flavio Pardo

{"title":"Optical Packaging of Surface-Normal Electroabsorption Modulator Arrays Using Passive Alignment","authors":"Stefano Grillanda;Nagesh Basavanhally;Ting-Chen Hu;Rick Papazian;Mark Cappuzzo;Alaric Tate;Mark Earnshaw;Rose Kopf;Flavio Pardo","doi":"10.1109/LPT.2025.3541016","DOIUrl":"https://doi.org/10.1109/LPT.2025.3541016","url":null,"abstract":"Surface-normal electroabsorption modulators (SNEAMs) are devices with unique characteristics, such as small size, wide bandwidth and polarization insensitive behavior; however, due to the surface-normal configuration and since they operate in reflection, it is challenging to package fiber arrays to SNEAM arrays with many channels. Here, we present a novel approach to package fiber arrays to SNEAM arrays based on passive alignment. We realize an expanded-beam, multi-channel, optical coupling scheme by using a prism lens array and a lens array in between a SNEAM array chip and a standard single mode fiber array. We use this approach to assemble a SNEAM array engine with 8 channels without any active optical alignment. We show that our SNEAM array engine has coupling loss from the fiber inputs to the SNEAMs ranging from 1.2 dB for the best channel to 1.7 dB for the worst channel. Also, we validate our passive alignment packaging scheme by modulating the channels at 25 Gbit/s NRZ-OOK and show that the fiber array is pluggable into the SNEAM array engine. Finally, our approach is independent of the specific SNEAM design, and potentially can be extended to other surface-normal devices, such as lasers or photodiodes.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 5","pages":"265-268"},"PeriodicalIF":2.3,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultra-Long-Distance Interferometric DOFS Over 300 km Without In-Line Repeater

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-11 DOI: 10.1109/LPT.2025.3541081

Feng Shi;Rui Jin;Yunke Du;Chao Wang;Bo Jia

引用次数: 0

Interplay Between Modulation Instability (MI) and Optical Comb Generation in a Brillouin Fiber Resonator: Cascaded Brillouin Lasing Comb and Brillouin-Kerr Comb

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-10 DOI: 10.1109/LPT.2025.3540275

Runhui Zhu;Zhiqiang Wang;Yang Li;Rui Zhou;Zuxing Zhang

{"title":"Interplay Between Modulation Instability (MI) and Optical Comb Generation in a Brillouin Fiber Resonator: Cascaded Brillouin Lasing Comb and Brillouin-Kerr Comb","authors":"Runhui Zhu;Zhiqiang Wang;Yang Li;Rui Zhou;Zuxing Zhang","doi":"10.1109/LPT.2025.3540275","DOIUrl":"https://doi.org/10.1109/LPT.2025.3540275","url":null,"abstract":"We have demonstrated the formation of two different types of optical frequency comb in a Brillouin fiber resonator with modulated pump technology. One is the Brillouin lasing comb (BLC) due to the cascaded Brillouin scattering. The latter is the Brillouin-Kerr frequency comb (BKC) that is formed because of the four-wave-mixing. The effect of modulation instability (MI) on the comb formation in these two different regimes is studied. In the first regime, the frequency spacing of the comb is determined by the Brillouin frequency shift. We have observed the competition and switching of MI and SBS in the resonator by changing the pump power. In the second regime, the modulated pump and its associated side frequencies serve as multiple frequency pumps, leading to the generation of BKC. The frequency spacing of BKC can be precisely tuned, depending on the modulation frequency of the pump. MI contributes to the BKC formation. Under a pump power of 1.4 W with a modulation frequency of 12 GHz, MI-assisted BKC with a spectrum covering over 30 nm is obtained. Our results deepen the understanding of the interaction between MI and Brillouin comb in Kerr resonators.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 5","pages":"257-260"},"PeriodicalIF":2.3,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband Surface-Enhanced Mid-Infrared Laser Spectroscopy With Adaptive Spectrum Compensation

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-05 DOI: 10.1109/LPT.2025.3539291

Jing Ni;Zhouzhuo Tang;Zihao Liu;Qijie Wang;Xia Yu

{"title":"Broadband Surface-Enhanced Mid-Infrared Laser Spectroscopy With Adaptive Spectrum Compensation","authors":"Jing Ni;Zhouzhuo Tang;Zihao Liu;Qijie Wang;Xia Yu","doi":"10.1109/LPT.2025.3539291","DOIUrl":"https://doi.org/10.1109/LPT.2025.3539291","url":null,"abstract":"External cavity-quantum cascade lasers (EC-QCLs) offer high spectral power density (SPD) over several hundred wavenumbers, making them ideal for broadband mid-infrared absorption spectroscopy. Surface-enhanced infrared absorption spectroscopy (SEIRA) leverages nanoantenna structure to enhance the signal in an infrared absorption spectrum. However, the highly uneven SPD of the EC-QCL and strong absorption of the SEIRA nanoantennas challenge the limited dynamic range of the detection system and thus introduce higher noise levels. Here, an adaptive spectrum compensation (ASC) method is proposed and applied in our home-built broadband surface-enhanced mid-infrared laser absorption spectrometer. The ASC method adaptively optimizes the laser beam and adjusts the SPD of the spectra reaching the detector with minimal loss. This reduces the dynamic range noise, detector noise and shot noise of the detection system, and allows quick adaptive switching between different background spectra. For our spectrometer, the ASC method has reduced the noise level of the absorption spectrum across 1660-975 cm−1 by more than 3 times. The proposed simple and low-cost spectrum compensation method could be applied to other tunable laser absorption spectroscopies with highly uneven SPD.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"37 5","pages":"277-280"},"PeriodicalIF":2.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dimmable Optical Camera Communications With WDM Using RGB and Infrared LEDs

IF 2.3 3区工程技术

IEEE Photonics Technology Letters Pub Date : 2025-02-04 DOI: 10.1109/LPT.2025.3538487

Hai Huang;Xiaodi You;Jin Shi;Jian Chen;Changyuan Yu;Mingyi Gao;Gangxiang Shen

引用次数: 0