Optics letters最新文献_第7页

Enhanced photonic spin Hall effect of the high order Hermite-Gauss mode on a generic conducting sheet. 通用导电片上高阶厄米-高斯模式光子自旋霍尔效应的增强。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-04-01 DOI: 10.1364/OL.559325

Yiyu Shi, Zhiwei Cui, Zhiwei Zheng, Xinyi Cao, Xinxing Zhou

引用次数: 0

Fast and accurate waveform modeling based on sequence-to-sequence framework for multi-channel and high-rate optical fiber transmission. 基于序列对序列框架的多通道高速光纤传输快速准确波形建模。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-04-01 DOI: 10.1364/OL.555880

Minghui Shi, Zekun Niu, Hang Yang, Junzhe Xiao, Chuyan Zeng, Yunfan Zhang, Zhixiong Zheng, Weisheng Hu, Lilin Yi

{"title":"Fast and accurate waveform modeling based on sequence-to-sequence framework for multi-channel and high-rate optical fiber transmission.","authors":"Minghui Shi, Zekun Niu, Hang Yang, Junzhe Xiao, Chuyan Zeng, Yunfan Zhang, Zhixiong Zheng, Weisheng Hu, Lilin Yi","doi":"10.1364/OL.555880","DOIUrl":"https://doi.org/10.1364/OL.555880","url":null,"abstract":"We propose a sequence-to-sequence (Seq2Seq) framework integrated with a feature decouple distributed (FDD) method for fast and accurate channel waveform modeling in multi-channel, high-rate wavelength-division multiplexing (WDM) optical fiber transmission. This framework enables the simultaneous prediction of multiple output symbols in a single inference, dramatically reducing the repeated calculation of adjacent padding symbols and achieving a significant reduction in time complexity compared to the traditional split-step Fourier method (SSFM). Additionally, transfer learning is leveraged to streamline the training process and improve the accuracy of the Seq2Seq architecture. In a 40-channel, 140 GBaud WDM system, Seq2Seq-FDD reduces computation time to a mere 0.22% of that required by the variable step size SSFM. In a five-channel configuration, Seq2Seq-FDD achieves an 85.5% improvement in NMSE over simplified FDD-Co-LSTM and a 99.88% reduction in computation time compared to vanilla-FDD. This framework provides a highly efficient solution for waveform modeling in multi-channel, high-rate WDM systems.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 7","pages":"2286-2289"},"PeriodicalIF":3.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Frequency conversion of a 100-fs Ti:sapphire laser pulse into the mid-IR range in a single HgGa₂S₄ nonlinear crystal with a quantum efficiency of 30. 在单个HgGa2S4非线性晶体中，100-fs Ti：蓝宝石激光脉冲在中红外范围内的频率转换，量子效率为30。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-04-01 DOI: 10.1364/OL.555407

Igor Kinyaevskiy, Andrew Koribut, Yakov Grudtsyn, Maxim Ionin

引用次数: 0

Inverse design fiber-to-chip couplers for the O- and C-bands: publisher's note. 反向设计光纤到芯片耦合器的O和c波段：出版商的说明。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-04-01 DOI: 10.1364/OL.562912

Julian Pita, Paulo Dainese, Michaël Ménard

引用次数: 0

LC device for generating chiral phase and chiral intensity switching. 用于产生手性相位和手性强度开关的LC装置。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-04-01 DOI: 10.1364/OL.558977

Wei Sun, Yaqin Zhou, Shuyang Huang, Xinyi Zhou, Xiangsheng Xie

{"title":"LC device for generating chiral phase and chiral intensity switching.","authors":"Wei Sun, Yaqin Zhou, Shuyang Huang, Xinyi Zhou, Xiangsheng Xie","doi":"10.1364/OL.558977","DOIUrl":"https://doi.org/10.1364/OL.558977","url":null,"abstract":"As an inherent characteristic of light fields, chirality possesses extensive potential applications in nanofabrication, optical communication, optical tweezers, etc. However, the investigation of multi-parameter modulation (phase, intensity, polarization, etc.) and chiral switching remains a challenge. To address this issue, we propose and fabricate a multifunctional liquid crystal device (LCD) based on photoalignment technology. By combining various vortices along the radial direction, a new optical phase plate is designed to modulate the light field, exhibiting distinct chiral states during propagation with simple optical transformation. Through tight focusing, the modulated light beam demonstrates intensity chirality switching, while phase chirality switching can be achieved through radial axial transformation. Benefiting from the advantages of LCD devices, such as large size, broad spectral range, low cost, and electronically controlled, the generated chiral-switching light enables facile and multifunctional manipulation of its chiral structures, with significant potential for scientific applications, including material chirality detection and photoactivated localization super-resolution fluorescence microscopy.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 7","pages":"2199-2202"},"PeriodicalIF":3.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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, low-background aluminum oxide waveguide platform for broad-spectrum on-chip microscopy. 用于广谱片上显微镜的低损耗、低背景氧化铝波导平台。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-04-01 DOI: 10.1364/OL.551736

Firehun T Dullo, Nikhil Jayakumar, Michael Getz, Aina K Herbjønrød, Christopher A Dirdal, Daniel Nilsen Wright, Frøydis S Skottvoll, Sirawit Boonsit, Ganapathy Senthil Murugan, Balpreet S Ahluwalia

{"title":"Low-loss, low-background aluminum oxide waveguide platform for broad-spectrum on-chip microscopy.","authors":"Firehun T Dullo, Nikhil Jayakumar, Michael Getz, Aina K Herbjønrød, Christopher A Dirdal, Daniel Nilsen Wright, Frøydis S Skottvoll, Sirawit Boonsit, Ganapathy Senthil Murugan, Balpreet S Ahluwalia","doi":"10.1364/OL.551736","DOIUrl":"https://doi.org/10.1364/OL.551736","url":null,"abstract":"A versatile wide-spectrum photonic integrated circuit (PIC) platform, spanning from ultraviolet (UV) to infrared (IR) wavelengths, is essential for advancing on-chip optical microscopy and spectroscopy applications. The key desirable requirements for PICs are low-loss, low-autofluorescence background signals, and high-refractive index contrast (HIC) to enable compact designs. Here, we present a low-loss, low-autofluorescence aluminum oxide (Al2O3) waveguide platform developed using atomic layer deposition (ALD). At 405 nm, the Al2O3 strip waveguide exhibits an autofluorescence background approximately 200 times lower than silicon nitride (Si3N4) and a propagation loss of less than 0.5 dB/cm. We demonstrate the suitability of the Al2O3 platform for multicolor on-chip total internal reflection fluorescence (TIRF) and super-resolution optical microscopy. The proposed Al2O3 platform offers a promising solution for highly sensitive on-chip bioimaging and spectroscopy applications.","PeriodicalId":19540,"journal":{"name":"Optics letters","volume":"50 7","pages":"2159-2162"},"PeriodicalIF":3.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

1060 nm interferometric near-infrared spectroscopy. 1060nm干涉近红外光谱。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-04-01 DOI: 10.1364/OL.558899

Dibbyan Mazumder, Santosh Aparanji, Oybek Kholiqov, Drew Hamilton, Rabisankar Samanta, Vivek J Srinivasan

引用次数: 0

4.5 W Er-doped ZBLAN fiber laser at 3.78 μm. 3.78 μm的4.5 W掺铒ZBLAN光纤激光器。

IF 3.1 2区物理与天体物理

Optics letters Pub Date : 2025-04-01 DOI: 10.1364/OL.554676

Lu Zhang, Shijie Fu, Quan Sheng, Xuewen Luo, Junxiang Zhang, Chunpeng Shi, Wei Shi, Jianquan Yao

引用次数: 0

ASE suppression in a thin-disk laser by optimizing reflectivity at an active element-heatsink interface. 通过优化有源元件-散热器界面的反射率抑制薄板激光器中的ASE。