Optics Communications最新文献

Optical design of bi-freeform-prism for wide field-of-view low-distortion virtual stereo vision system

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-24 DOI: 10.1016/j.optcom.2025.131866

Tingzhi Yu , Zexiao Li , Le Song , Yuan Qin , Zhipeng Guo , Fengzhou Fang

{"title":"Optical design of bi-freeform-prism for wide field-of-view low-distortion virtual stereo vision system","authors":"Tingzhi Yu , Zexiao Li , Le Song , Yuan Qin , Zhipeng Guo , Fengzhou Fang","doi":"10.1016/j.optcom.2025.131866","DOIUrl":"10.1016/j.optcom.2025.131866","url":null,"abstract":"<div><div>Virtual stereoscopic vision systems are integral to modern optical technologies, yet correcting image distortion in wide FoV binocular systems remains a critical challenge. This study introduces a novel bi-freeform-prism design methodology to address distortion correction and enhance system performance. An improved virtual camera model with a consistency constraint is proposed to resolve convergence issues in traditional approaches, accompanied by a systematic analysis of system parameters and dimensions, and an optimized metric for evaluating virtual image quality. A prototype BFP-based system was fabricated, featuring a 1 mm entrance pupil, a 1.94 mm focal length, and a <span><math><mrow><msup><mrow><mi>± 23</mi></mrow><mrow><mo>∘</mo></mrow></msup><mo>×</mo><msup><mrow><mi>± 23</mi></mrow><mrow><mo>∘</mo></mrow></msup></mrow></math></span> FoV. Experimental results demonstrate distortion reductions to 1.23% and 1.74% for the left and right fields of view, respectively, validating the proposed BFP design as an effective solution for distortion correction in wide FoV systems.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131866"},"PeriodicalIF":2.2,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mid-infrared broadband in-fiber polarization beam splitter based on dual core photonic crystal fiber with dual aluminum wires

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-23 DOI: 10.1016/j.optcom.2025.131920

Nan Chen , Yaohui Feng , Zhongjie Ren , Xin Ding , Shuhua Cao , Yiming Xu , Fan Yang , Mingxuan Song

{"title":"Mid-infrared broadband in-fiber polarization beam splitter based on dual core photonic crystal fiber with dual aluminum wires","authors":"Nan Chen , Yaohui Feng , Zhongjie Ren , Xin Ding , Shuhua Cao , Yiming Xu , Fan Yang , Mingxuan Song","doi":"10.1016/j.optcom.2025.131920","DOIUrl":"10.1016/j.optcom.2025.131920","url":null,"abstract":"<div><div>The polarizing beam splitter (PBS) plays an important role in meeting the growing demand of communication capacity. This paper presents a novel mid-infrared broadband in-fiber PBS using dual-core photonic crystal fiber (DC-PCF) with dual aluminum wires numerically. The high refractive index substrate material As<sub>2</sub>S<sub>3</sub> glass can facilitate the extension of the working wavelength to the mid-infrared band, and the aluminum wires provide plasmonic effect to enhance the birefringence of the proposed PCF to promote the compactness of the device. The numerical results demonstrate that the coupling length ratio of 2 can be achieved at 3.3 μm, when the diameter of cladding holes is 1.6 μm, the diameter of central hole is 1.2 μm, the diameter of inner small holes is 0.7 μm, the diameter of aluminum-filled holes is 2.0 μm and lattice constant is 2.1 μm. The aluminum wires have a remarkable tuning effect and the length of this PBS is only 160 μm. Meanwhile, this PBS possesses the maximum ER of −72.1 dB and a 1020 nm-long operating bandwidth of extinction ratio greater than 20 dB, ranging from 2.92 to 3.94 μm. Additionally, with the existing manufacturing process, the device has a high feasibility. It deserves expecting that the proposed PBS has extensive application prospects in fields such as gas sensing, medical surgery, environment monitoring, optical imaging and the new generation optical communication network.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131920"},"PeriodicalIF":2.2,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating the effectiveness of Ca3AsCl3-based Perovskite Solar Cells with optimal hole transport layer selection through numerical optimization and machine learning

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-22 DOI: 10.1016/j.optcom.2025.131916

Asadul Islam Shimul , Md Maruf Hossain , Safia Aktar Dipa

{"title":"Investigating the effectiveness of Ca3AsCl3-based Perovskite Solar Cells with optimal hole transport layer selection through numerical optimization and machine learning","authors":"Asadul Islam Shimul , Md Maruf Hossain , Safia Aktar Dipa","doi":"10.1016/j.optcom.2025.131916","DOIUrl":"10.1016/j.optcom.2025.131916","url":null,"abstract":"<div><div>Perovskite solar cells (PSCs) are gaining attention due to their superior photovoltaic (PV) performance compared to traditional PV cells. They offer several advantages, including low cost, simple manufacturing processes, tunable bandgap energy, and excellent electrical and optical properties. In this study, SCAPS-1D software was utilized to design a novel lead-free PSC structure: FTO/TiO<sub>2</sub>/Ca<sub>3</sub>AsCl<sub>3</sub>/CBTS/Ni. The absorber layer consists of lead-free Ca<sub>3</sub>AsCl<sub>3</sub>, and various inorganic hole transport layers (HTLs), including CBTS, CuI, CuO, CFTS, and CuSCN, were analyzed to enhance efficiency. The maximum permitted defect densities were established, and important parameters including the absorber and electron transport layers' (ETL) thickness and doping concentrations were tuned. After optimization, the PV properties of the solar cell showed significant improvements. Without the CBTS HTL layer, the device achieved a power conversion efficiency (PCE) of 17.11 %, a fill factor (FF) of 86.23 %, a short-circuit current density (J<sub>SC</sub>) of 14.8 mA/cm<sup>2</sup> and an open-circuit voltage (V<sub>OC</sub>) of 1.34 V. However, incorporating the CBTS HTL layer increased the PCE to 23.70 %, with a J<sub>SC</sub> of 19.14 mA/cm<sup>2</sup>, an FF of 89.28 %, and a V<sub>OC</sub> of 1.39 V. Additionally, a Random Forest machine learning approach forecasts optimal PV parameters by examining essential material characteristics, including layer thickness, bandgap, and carrier mobility. The model predicts performance with a remarkable correlation coefficient (R<sup>2</sup>) of 0.94 for PCE. This approach improves comprehension of material optimization and provides essential data to produce cost-effective, efficient Ca<sub>3</sub>AsCl<sub>3</sub>-based PSCs, boosting progress in solar energy technology.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131916"},"PeriodicalIF":2.2,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical and experimental study of laser irradiation in superficial /deep skin with different absorption temperature characteristics

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-22 DOI: 10.1016/j.optcom.2025.131909

Chengcheng Chang, Yue Zhao, Erxian Xing, Zijian Wang, Yongji Yu

引用次数: 0

VSe2 as saturable absorber for 2 μm Tm: YAG laser

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-21 DOI: 10.1016/j.optcom.2025.131907

Siqun Huo , Wenlong Yang , Huanli Wang , Zhaoyu Ma , Bangzheng Liu , Linjun Li

引用次数: 0

High-energy 3-μm Er:YAG and Er,Cr:YSGG lasers Q-switched with semiconductor saturable absorbers

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-19 DOI: 10.1016/j.optcom.2025.131851

Weibo Wu , Yuchen Wang , Tiantian Zhou , Lingling Yang , Yiguang Jiang , Ting Yu , Wenlong Li , Pinghua Tang , Chujun Zhao , Xiao Li , Long Zhang

{"title":"High-energy 3-μm Er:YAG and Er,Cr:YSGG lasers Q-switched with semiconductor saturable absorbers","authors":"Weibo Wu , Yuchen Wang , Tiantian Zhou , Lingling Yang , Yiguang Jiang , Ting Yu , Wenlong Li , Pinghua Tang , Chujun Zhao , Xiao Li , Long Zhang","doi":"10.1016/j.optcom.2025.131851","DOIUrl":"10.1016/j.optcom.2025.131851","url":null,"abstract":"<div><div>We report a comparative investigation of the free-running operation and the passive Q-switching operation of Er:YAG and Er,Cr:YSGG lasers pumped by xenon flashlamps. In the free-running regime, the Er:YAG laser achieved an output pulse energy up to 0.86 J, resulting in a maximum average power of 14.92 W, while the Er,Cr:YSGG laser achieved a maximum output pulse energy of 1.49 J, with a maximum average power of 20.65 W. The Q-switching of Er:YAG and Er,Cr:YSGG lasers is achieved using a semiconductor saturable absorber mirror (SESAM) for the first time, to the best of our knowledge, with output pulse energies of 0.28 mJ and 0.12 mJ and pulse widths of 1.13 <span><math><mi>μ</mi></math></span>s and 0.83 <span><math><mi>μ</mi></math></span>s, respectively. The SESAM Q-switched 3-<span><math><mi>μ</mi></math></span>m solid-state lasers shall contribute to the development of compact and robust high-energy mid-infrared pulsed laser sources for medical and industrial applications.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131851"},"PeriodicalIF":2.2,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143868662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance differences of programmable multimode interferometer platform for different targets in inverse design

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-19 DOI: 10.1016/j.optcom.2025.131906

Zhenrong Yang , Jingfu Ye , Shiliang Qu , Jinjian Li , Weijiang Xu

{"title":"Performance differences of programmable multimode interferometer platform for different targets in inverse design","authors":"Zhenrong Yang , Jingfu Ye , Shiliang Qu , Jinjian Li , Weijiang Xu","doi":"10.1016/j.optcom.2025.131906","DOIUrl":"10.1016/j.optcom.2025.131906","url":null,"abstract":"<div><div>Recently, researchers have proposed a kind of programmable multimode interferometer (MMI) platform. By leveraging the inverse design, this kind of compact device is very promising for next generation of silicon-based photonic processors. However, the design capabilities of the programmable MMI have not yet been investigated. On the other hand, the optical performance of the inverse-designed device is usually determined by both the optimization algorithm and the platform itself, and one may wonder how much the algorithm or the platform affects the design results. In this paper, we distinguish between algorithm optimization capability and platform capability by introducing the random structure targets and the random function targets. The results show that for optical field amplitude targets, the device performance in inverse design is excellent, largely due to the algorithm's optimization, which has a more significant impact. However, for transmission matrix targets, the MMI platform itself becomes the primary limiting factor. This work provides a unique way to investigate the design capabilities of the programmable MMI, and, to some extent, also provides guidance for the further development of the programmable MMI.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131906"},"PeriodicalIF":2.2,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","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 and wide-band photonic crystal waveguide bend with an open resonator

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-19 DOI: 10.1016/j.optcom.2025.131904

Menghan Ma, Kan Chen, Ran Bi, Xuan She, Lei Wang, Xiaowu Shu

引用次数: 0

Research on multiphysics fields coupling effects of silicon-based lithium niobate electro-optic modulator

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-18 DOI: 10.1016/j.optcom.2025.131902

Jing Chen, Yi Shen, XueHan Li, FengZe Yue, WeiJie Gao, Jia Lin

{"title":"Research on multiphysics fields coupling effects of silicon-based lithium niobate electro-optic modulator","authors":"Jing Chen, Yi Shen, XueHan Li, FengZe Yue, WeiJie Gao, Jia Lin","doi":"10.1016/j.optcom.2025.131902","DOIUrl":"10.1016/j.optcom.2025.131902","url":null,"abstract":"<div><div>Electro-Optic (EO) modulator is one of the key devices in silicon-based optoelectronic integration technology, with its performance closely tied to underlying physical principles, which are essential for gaining deeper insights into the modulator's working mechanisms. Here we focus on silicon-based EO modulator, investigating the various physical fields involved during operation, i.e. optical, electric, thermal, and stress fields, establishing coupling theories between these fields, with particular attention to both the forward and backward processes. The intuitive pictures of these physical fields are simulated, and the coupling effect between different fields and the influence of the modulator electrode structure on them are then quantitatively analyzed. Subsequently, we establish the correlation between the studied physical field and the device's key performance parameters, thereby proposing clear objectives for electrode structure optimization. This study offers insight into the physical principles underlying the performance of modulators, providing a foundational explanation for the alignment or trade-offs between different performance indexes, and then enables a fundamental approach to enhancing device performance.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131902"},"PeriodicalIF":2.2,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fiber nonlinear impairments compensation using CLDNN with transfer learning for long-haul fiber-optic transmission systems

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2025-04-18 DOI: 10.1016/j.optcom.2025.131849

Jianyu Meng , Ju Cai , Hongbo Zhang , Qianwu Zhang

{"title":"Fiber nonlinear impairments compensation using CLDNN with transfer learning for long-haul fiber-optic transmission systems","authors":"Jianyu Meng , Ju Cai , Hongbo Zhang , Qianwu Zhang","doi":"10.1016/j.optcom.2025.131849","DOIUrl":"10.1016/j.optcom.2025.131849","url":null,"abstract":"<div><div>Fiber nonlinear impairments (NLIs) are one of the major limitations for long-haul fiber-optic transmission systems. In this paper, we propose a low-complexity NLIs compensation (NLC) scheme using CLDNN with transfer learning (TL). The proposed NLC scheme combines the advantages of deep neural networks (DNN), convolutional neural networks (CNN), and long short-term memory (LSTM). To reduce training complexity and accelerate the NLIs estimation process, we introduce the TL based on multi-source domain to fast remodel target tasks by learning knowledge from the previous tasks. In the experiment, we compare the proposed NLC scheme with w/o NLC, DNN-NLC, and digital back propagation with modified 10 step-per-span (10-StPs MDBP). The experimental results show the proposed NLC scheme can achieve 11.05 dB <span><math><mi>Q</mi></math></span> factor at 5 dBm signal-launched power for single-channel 30 GBaud dual-polarization 16QAM (DP-16QAM) coherent fiber-optic transmission system over 1200 km standard single mode fiber, while the <span><math><mi>Q</mi></math></span> factor gains are 3.23 dB, 1.76 dB, and 0.61 dB compared to the w/o NLC, DNN-NLC, and 10-StPs MDBP, respectively. Meanwhile, the implementation complexity of the proposed TL-CLDNN-NLC is approximately 92% of DNN-NLC, and 57% of 10-StPs MDBP. Additionally, the experimental results of three-channel wavelength division multiplexing 30 GBaud DP-64QAM systems show that the proposed TL-CLDNN-NLC can also achieve a better performance with lower complexity compared with DNN-NLC and 10-StPs MDBP.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"586 ","pages":"Article 131849"},"PeriodicalIF":2.2,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0