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Editorial: Special Issue on ISMTII&ICOIM 2025 社论：ISMTII&ICOIM 2025特刊
IF 2.5 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-18 DOI: 10.1109/LPT.2026.3658178
Jinlong Zhu;Shiyuan Liu;Shuming Yang;Wenhan Zeng
{"title":"Editorial: Special Issue on ISMTII&ICOIM 2025","authors":"Jinlong Zhu;Shiyuan Liu;Shuming Yang;Wenhan Zeng","doi":"10.1109/LPT.2026.3658178","DOIUrl":"https://doi.org/10.1109/LPT.2026.3658178","url":null,"abstract":"","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 9","pages":"583-583"},"PeriodicalIF":2.5,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11398765","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146223840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temperature Sensing Based on Accumulation of Mode Shifts in TFBG 基于模式漂移积累的TFBG温度传感
IF 2.5 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-17 DOI: 10.1109/LPT.2026.3665756
Zhengyang Zhong;Zhen Chen;Haitao Yan;Daofu Han
{"title":"Temperature Sensing Based on Accumulation of Mode Shifts in TFBG","authors":"Zhengyang Zhong;Zhen Chen;Haitao Yan;Daofu Han","doi":"10.1109/LPT.2026.3665756","DOIUrl":"https://doi.org/10.1109/LPT.2026.3665756","url":null,"abstract":"This study presents an ultra-sensitive temperature sensor using tilted fiber Bragg gratings (TFBGs). By analyzing accumulated cladding-mode wavelength shifts with neural networks, we achieve an enhancement of the TFBG’s resolution from its intrinsic value of 10.2 pm/°C up to 490.24 pm/°C, more than 40 times higher than conventional FBGs. The system reaches <inline-formula> <tex-math>$0.15~^{circ }$ </tex-math></inline-formula>C accuracy across 40-<inline-formula> <tex-math>$140~^{circ }$ </tex-math></inline-formula>C, with 0.99979 goodness-of-fit and 0.0007087 nm/°C standard deviation (SE), near-ideal linearity and low SE. Unlike traditional peak-tracking, our machine learning approach decodes complex multi-mode coupling in TFBG spectra, enabling sub-degree resolution and high stability. This strategy advances high-precision fiber-optic sensing for industrial temperature monitoring and multimode integrated detection.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 11","pages":"747-750"},"PeriodicalIF":2.5,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147362306","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
Miniaturized Fiber Optic Gyroscope Transceiver Based on a SiN Photonic Chip 基于SiN光子芯片的小型光纤陀螺收发器
IF 2.5 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-17 DOI: 10.1109/LPT.2026.3665670
Hongmin Fu;Tonghui Li;Fengjie Zhou;Shan Gao;Shijia Fan;Peng Wu;Jia Yang;Chao Wang;Huacheng Liu;Heng Zhao;Jingming Song;Li Jin;Naidi Cui;Junbo Feng;Zhizhou Lu
{"title":"Miniaturized Fiber Optic Gyroscope Transceiver Based on a SiN Photonic Chip","authors":"Hongmin Fu;Tonghui Li;Fengjie Zhou;Shan Gao;Shijia Fan;Peng Wu;Jia Yang;Chao Wang;Huacheng Liu;Heng Zhao;Jingming Song;Li Jin;Naidi Cui;Junbo Feng;Zhizhou Lu","doi":"10.1109/LPT.2026.3665670","DOIUrl":"https://doi.org/10.1109/LPT.2026.3665670","url":null,"abstract":"In this work, we first present a miniaturized fiber optic gyroscope (FOG) transceiver based on an ultra-low loss silicon nitride (SiN) photonic chip operating at O-band. The photonic chip serves as a power splitter and polarizer, featuring high-efficiency edge couplers for hybrid integration with an external broadband light source and a high-performance photodetector (PD). The transceiver is co-assembled based on a standard butterfly package with a thermo-electric cooler (TEC). At a driving current of 100 mA, the transceiver produces an output power of 1.36 mW, which increases to 4.25 mW at 200 mA. Built with a fiber coil with ~380 m length and ~60 mm average diameter, the preliminary transceiver-based FOG exhibits the 10 s Allan deviation of <inline-formula> <tex-math>$0.0969~^{circ }$ </tex-math></inline-formula>/h and the angular random walk (ARW) of <inline-formula> <tex-math>$0.0058~^{circ }$ </tex-math></inline-formula>/<inline-formula> <tex-math>$sqrt {h}$ </tex-math></inline-formula>, which is comparable with their discrete counterparts. By integrating the high-power integration advantages of the SiN photonic platform with a reduction in fiber splices, this approach lays a solid foundation for developing more compact, high-precision, and high-power-required fiber-optic sensing systems.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 11","pages":"751-754"},"PeriodicalIF":2.5,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147362335","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
Overcoming Laser Phase Noise in FMCW LiDAR via Dual-Sideband Residual-Carrier Modulation 利用双边带剩余载波调制克服FMCW激光雷达中的激光相位噪声
IF 2.5 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-17 DOI: 10.1109/LPT.2026.3665743
Tianchi Zhong;Xiang Cai;Yixiao Zhu;Xian Zhou;Fan Zhang
{"title":"Overcoming Laser Phase Noise in FMCW LiDAR via Dual-Sideband Residual-Carrier Modulation","authors":"Tianchi Zhong;Xiang Cai;Yixiao Zhu;Xian Zhou;Fan Zhang","doi":"10.1109/LPT.2026.3665743","DOIUrl":"https://doi.org/10.1109/LPT.2026.3665743","url":null,"abstract":"Frequency-modulated continuous-wave (FMCW) light detection and ranging (LiDAR) enables high-sensitivity detection and simultaneous range–velocity estimation by converting round-trip time delay into a beat frequency. However, at long distances, laser phase noise causes decorrelation between the reference and echo fields, degrading measurement precision beyond the laser’s coherence length. To overcome this limitation, we propose a carrier-aided dual-sideband residual-carrier modulation (DSB-RCM) scheme. After coherent detection, the extracted residual-carrier tone and the de-chirped beat are spectrally isolated and multiplied in the electrical domain to suppress common laser phase noise, yielding a phase-noise-cancelled beat. We demonstrate a proof-of-concept system using a single Mach–Zehnder modulator (MZM) driven by a 2 GHz sawtooth chirp and a distributed feedback (DFB) laser with 12.5 MHz linewidth. Using fiber delays to emulate long-distance propagation, the system achieves ranging precision approaching the range-bin spacing (10 cm) at an equivalent distance of 80 km—exceeding the laser’s coherence length by more than 15000 times. By relaxing the stringent linewidth requirements of coherent FMCW LiDAR, this approach enables the use of low-cost, MHz-linewidth DFB lasers in long-range systems, thereby providing a compact and scalable pathway to high-precision ranging and imaging.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 11","pages":"695-698"},"PeriodicalIF":2.5,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147280901","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
Multiplexed Exceptional Point Operation in a Single Metasurface for WDM Phase Control 用于WDM相位控制的单个元表面的多路异常点操作
IF 2.5 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-17 DOI: 10.1109/LPT.2026.3665772
Mingzhe Zhang;Baifu Zhang;Zhiwei Zeng;Shangchen Li;Xiao Luo;Zefan Zhang;Ji Xu;Jianping Ding
{"title":"Multiplexed Exceptional Point Operation in a Single Metasurface for WDM Phase Control","authors":"Mingzhe Zhang;Baifu Zhang;Zhiwei Zeng;Shangchen Li;Xiao Luo;Zefan Zhang;Ji Xu;Jianping Ding","doi":"10.1109/LPT.2026.3665772","DOIUrl":"https://doi.org/10.1109/LPT.2026.3665772","url":null,"abstract":"Metasurfaces operating at exceptional points (EPs) provide a phase control mechanism via topological protection. Most existing EP-based designs, however, remain constrained to single-wavelength operation. In this work, we propose a multiplexed-EP strategy in a single metasurface with quick response (QR)-code meta-atoms for multi-wavelength phase engineering. Using the direct binary search algorithm, we optimized a singular meta-atom geometry supporting EPs simultaneously at three wavelengths. By exploiting the inherent <inline-formula> <tex-math>$2pi $ </tex-math></inline-formula> topological phase, we designed a wavelength-division-multiplexing (WDM) holographic metasurface, numerically validated via full-wave simulations. This work establishes a generalized framework for WDM metasurfaces, with promising applications in high-capacity and multifunctional photonic devices.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 11","pages":"731-734"},"PeriodicalIF":2.5,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147299749","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
Single-Snapshot Focus Variation Microscopy for High-Speed Topographic Optical Imaging 高速地形光学成像的单快照变焦显微镜
IF 2.5 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-17 DOI: 10.1109/LPT.2026.3665698
Xiangyu Zhao;Xianwen Huang;Dong Qiu;Zhengqiong Dong;Lei Nie;Jian Wang;Jinlong Zhu;Shiyuan Liu
{"title":"Single-Snapshot Focus Variation Microscopy for High-Speed Topographic Optical Imaging","authors":"Xiangyu Zhao;Xianwen Huang;Dong Qiu;Zhengqiong Dong;Lei Nie;Jian Wang;Jinlong Zhu;Shiyuan Liu","doi":"10.1109/LPT.2026.3665698","DOIUrl":"https://doi.org/10.1109/LPT.2026.3665698","url":null,"abstract":"Focus variation microscopy (FVM) enables non-contact, three-dimensional measurements on the micro- and nano-scales, which are crucial in applications such as precision engineering and machining process control. Here, we report single-snapshot focus variation microscopy (S-FVM), which improves acquisition speed and reduces data bandwidth by capturing compressed images. Moreover, we use structural complementary masks for encoding to obtain high-quality and stable demodulated images. The acquired compressed images effectively preserve the optical information, owing to the inherent periodic ordering characteristics of the structural complementary masks. The fast topographic imaging capability of S-FVM was experimentally confirmed by measuring samples containing machined. This work provides a potential solution for high-speed topographic imaging.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 11","pages":"711-714"},"PeriodicalIF":2.5,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147280896","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
Radio-Over-Fiber Enabled Evaluation of Coverage and Capacity in Indoor mmWave Communication 基于光纤的室内毫米波通信覆盖和容量评估
IF 2.5 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-17 DOI: 10.1109/LPT.2026.3665804
Ye Zhou;Mingxu Wang;Jiali Chen;Xin Lu;Yifan Chen;Wen Zhou;Kaihui Wang;Jianjun Yu
{"title":"Radio-Over-Fiber Enabled Evaluation of Coverage and Capacity in Indoor mmWave Communication","authors":"Ye Zhou;Mingxu Wang;Jiali Chen;Xin Lu;Yifan Chen;Wen Zhou;Kaihui Wang;Jianjun Yu","doi":"10.1109/LPT.2026.3665804","DOIUrl":"https://doi.org/10.1109/LPT.2026.3665804","url":null,"abstract":"Recent advances in mobile networks increasingly rely on high-frequency bands such as millimeter-wave (mmWave) to deliver multi-gigabit data rates. Photonics-assisted wireless technology further enhances system performance with ultra-high bandwidth, large capacity, and extended reach. This letter experimentally verifies an indoor WiFi coverage system supported by Radio-over-Fiber (RoF) based on an omnidirectional antenna, systematically testing the WiFi communication characteristics of 60 GHz millimeter waves in complex indoor environments. Comparative experiments were conducted in line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios, with extensive empirical measurements and performance evaluations performed at 25 different indoor receiving locations. Experimental results demonstrate that the RoF-supported millimeter-wave WiFi architecture possesses good coverage capabilities and communication feasibility in complex indoor environments. To our knowledge, this is the first systematic experimental verification of the feasibility of millimeter-wave WiFi coverage in a real-world complex indoor scenario, providing a practically valuable reference solution for high-capacity, high-speed indoor wireless access towards future the sixth generation (6G).","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 11","pages":"715-718"},"PeriodicalIF":2.5,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147299660","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
Low-Loss, Low-Crosstalk Arrayed Waveguide Grating on a 300 mm Silicon Photonics Platform 300毫米硅光子平台上的低损耗、低串扰阵列波导光栅
IF 2.5 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-17 DOI: 10.1109/LPT.2026.3665778
Mohammad Jobayer Hossain;Javery A. Mann;Amit Dikshit;Jin Wallner;Gerald J. Leake;Christopher V. Baiocco
{"title":"Low-Loss, Low-Crosstalk Arrayed Waveguide Grating on a 300 mm Silicon Photonics Platform","authors":"Mohammad Jobayer Hossain;Javery A. Mann;Amit Dikshit;Jin Wallner;Gerald J. Leake;Christopher V. Baiocco","doi":"10.1109/LPT.2026.3665778","DOIUrl":"https://doi.org/10.1109/LPT.2026.3665778","url":null,"abstract":"We present a <inline-formula> <tex-math>$1times 13$ </tex-math></inline-formula> channel silicon nitride arrayed waveguide grating (AWG) fabricated on a 300 mm silicon photonics platform. The device operates across the C and L bands (1500–1620 nm) with a measured insertion loss of 0.92 dB and a crosstalk of –37.5 dB (median across 29 dies on the wafer). Each channel exhibits a 3 dB bandwidth of 118.6 GHz, with a channel spacing of 187 GHz. The free spectral range (FSR) of the AWG is 20 nm. The device footprint is compact, measuring 1.65 mm <inline-formula> <tex-math>$times 0.75$ </tex-math></inline-formula> mm. Fabrication was carried out using AIM Photonics’ 300 mm CMOS-compatible process at the Albany Nanotech Complex. This work presents the design, fabrication, and characterization of the AWG, including an analysis of die-to-die performance variations.","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 10","pages":"691-694"},"PeriodicalIF":2.5,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147299720","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
TechRxiv: Share Your Preprint Research with the World! techxiv：与世界分享你的预印本研究！
IF 2.4 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-15 Epub Date: 2026-03-03 DOI: 10.1109/LPT.2025.3641804
{"title":"TechRxiv: Share Your Preprint Research with the World!","authors":"","doi":"10.1109/LPT.2025.3641804","DOIUrl":"https://doi.org/10.1109/LPT.2025.3641804","url":null,"abstract":"","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 4","pages":"295-295"},"PeriodicalIF":2.4,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11420943","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148484094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Photonics Technology Letters Information for Authors IEEE Photonics Technology Letters for Authors
IF 2.4 3区 工程技术
IEEE Photonics Technology Letters Pub Date : 2026-02-15 Epub Date: 2026-03-03 DOI: 10.1109/LPT.2026.3660557
{"title":"IEEE Photonics Technology Letters Information for Authors","authors":"","doi":"10.1109/LPT.2026.3660557","DOIUrl":"https://doi.org/10.1109/LPT.2026.3660557","url":null,"abstract":"","PeriodicalId":13065,"journal":{"name":"IEEE Photonics Technology Letters","volume":"38 4","pages":"C3-C3"},"PeriodicalIF":2.4,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11420936","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148485125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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