Optics Communications最新文献_第7页

Topography measurement system based on array-detection FMCW 基于阵列探测FMCW的地形测量系统

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-21 DOI: 10.1016/j.optcom.2026.132943

Xuan Cao , Fuxiao Xu , Zhenjia Li , Jiacheng He , Guoshuai Zhao , Guojie Tu

{"title":"Topography measurement system based on array-detection FMCW","authors":"Xuan Cao , Fuxiao Xu , Zhenjia Li , Jiacheng He , Guoshuai Zhao , Guojie Tu","doi":"10.1016/j.optcom.2026.132943","DOIUrl":"10.1016/j.optcom.2026.132943","url":null,"abstract":"<div><div>The demand for three-dimensional (3D) surface topography measurement of objects in modern precision manufacturing has significantly increased. Among non-contact optical measurement methods, the 3D surface topography measurement scheme based on frequency modulated continuous wave (FMCW) ranging technology exhibits notable advantages in measurement accuracy and resistance to ambient light interference. However, similar to other ranging-based schemes, this approach mostly relies on mechanical scanning, leading to a complex system structure and high manufacturing costs. To address this challenge, this study proposes a 3D surface topography measurement scheme based on a Mach-Zehnder interferometer (MZI) and array-detection FMCW, utilizing a low-cost vertical cavity surface emitting laser (VCSEL). The main practical advantage of this scheme lies in replacing mechanical scanning with array detection, which significantly simplifies the system structure and reduces manufacturing costs while maintaining high measurement performance over long distances. Experimental results demonstrate that the proposed scheme achieves a ranging accuracy of 0.0148 mm at a distance of 5 m, with a measurement range of up to 33 mm.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"607 ","pages":"Article 132943"},"PeriodicalIF":2.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080130","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

All-fiber thulium-doped 120 MHz fundamental frequency mode-locked laser via a high-nonlinearity MNF 高非线性MNF全光纤掺铥120 MHz基频锁模激光器

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-22 DOI: 10.1016/j.optcom.2026.132947

Silun Du , Tianshu Wang , Gang Deng , Baoqun Li , Yunhan Deng , Yibing Chen , Yuxia Song

{"title":"All-fiber thulium-doped 120 MHz fundamental frequency mode-locked laser via a high-nonlinearity MNF","authors":"Silun Du , Tianshu Wang , Gang Deng , Baoqun Li , Yunhan Deng , Yibing Chen , Yuxia Song","doi":"10.1016/j.optcom.2026.132947","DOIUrl":"10.1016/j.optcom.2026.132947","url":null,"abstract":"<div><div>Research on micro-nano optical materials and device technologies has received significant attention in recent years, as the integration of micro-nano fabrication with optical device engineering has dramatically accelerated the advancement of optoelectronic systems. Among various micro-nano structures, micro-nano fibers (MNFs) have emerged as highly versatile platforms for ultrafast fiber laser development due to their unique optical properties. In this work, we demonstrate an all-fiber \"Figure 9\" thulium-doped fiber laser incorporating a tapered MNF structure. By introducing a polarization controller (PC) and a 12 cm, highly doped, polarization-maintaining gain fiber into an otherwise non-PM cavity, a Lyot-filter-like effect is produced, enabling flexible tuning of both the output wavelength and the number of pulses. The laser generates ultrafast pulses with a fundamental repetition rate exceeding 120 MHz which significantly exceeding the typical sub-50 MHz rates of most all-fiber \"Figure 9\" thulium systems, a pulse duration of 376 fs, an average output power of 56.37 mW, a wavelength-tuning range greater than 35 nm, and a signal-to-noise ratio (SNR) above 55 dB. Furthermore, the impacts of the ultrashort resonator configuration and the optical characteristics of the tapered MNF on the spectral and temporal properties were systematically analyzed. The demonstrated high-repetition-rate all-fiber laser shows strong potential for applications in precision micromachining, biomedical imaging, ultrafast spectroscopy, and nonlinear optics.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"607 ","pages":"Article 132947"},"PeriodicalIF":2.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080156","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

Polarization-insensitive electro-optic mach-zehnder modulator on thin-film lithium niobate-silicon nitride heterogeneous platform 铌酸锂-氮化硅薄膜非均相平台上偏振不敏感的电光马赫曾德尔调制器

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-15 DOI: 10.1016/j.optcom.2026.132913

Wenxuan Pei, Zhen Zhou, Xinyu Li, Yang Lu, Wentao Li, Anxu Huang, Di Feng, Hongchen Jiao, Lishuang Feng

引用次数: 0

Optimized iterative algorithm for generating phase-only Fourier hologram based on phase momentum 基于相位动量生成纯相位傅立叶全息图的优化迭代算法

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-07 DOI: 10.1016/j.optcom.2025.132860

Ke Li, Jinbin Gui, Mengxue Li, Haoyu Liu, Wengping Zhong

{"title":"Optimized iterative algorithm for generating phase-only Fourier hologram based on phase momentum","authors":"Ke Li, Jinbin Gui, Mengxue Li, Haoyu Liu, Wengping Zhong","doi":"10.1016/j.optcom.2025.132860","DOIUrl":"10.1016/j.optcom.2025.132860","url":null,"abstract":"<div><div>The Gerchberg-Saxton (GS) iterative algorithm is a classical method for phase retrieval but suffers from slow convergence and dependence on the initial phase. This paper proposes an optimized iterative algorithm based on image-plane phase momentum acceleration and amplitude feedback. Unlike weighted-type algorithms that primarily impose constraints on amplitude, the proposed algorithm constructs a momentum term utilizing historical phase information in the image plane. This term adjusts the input image-plane phase in each iteration. When the actual change trend of the image-plane phase aligns with the momentum direction, a significant acceleration effect is produced, effectively reducing the number of iterations and shrinking the size of the noise region. Numerical simulations demonstrate that the proposed method achieves superior reconstruction quality with smaller noise regions and exhibits stronger robustness to initial phase conditions. Optical experimental results are consistent with simulations, further validating the effectiveness of the proposed method.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"606 ","pages":"Article 132860"},"PeriodicalIF":2.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145947894","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

Abrupt autofocusing and scintillation dynamics of truncated circular airy derivative beams in strong turbulence 截断圆形airy导数光束在强湍流中的突然自聚焦和闪烁动力学

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-16 DOI: 10.1016/j.optcom.2026.132923

Anita Kumari, Vishwa Pal

{"title":"Abrupt autofocusing and scintillation dynamics of truncated circular airy derivative beams in strong turbulence","authors":"Anita Kumari, Vishwa Pal","doi":"10.1016/j.optcom.2026.132923","DOIUrl":"10.1016/j.optcom.2026.132923","url":null,"abstract":"<div><div>We present a combined experimental and numerical study on the abrupt autofocusing and scintillation dynamics of truncated circular Airy derivative beams (CADBs) in free space and in strong turbulence. Inner and outer truncations of up to 60% are applied to investigate the impact of structural modifications on beam propagation. The autofocusing strength, quantified by the maximum K-value, is found to decrease systematically with increasing truncation. Inner truncation maintains higher maximum K-value but demonstrated increased sensitivity to turbulence. In contrast, outer truncation yields lower maximum K-value while offering enhanced robustness under turbulent conditions. Despite strong turbulence, all truncated CADBs exhibit a notable rise in their K-value, confirming the resilience of their intrinsic self-accelerating autofocusing behaviour. Further, scintillation index analysis reveal that self-healing governs turbulence response: inner truncation delays but intensifies scintillation due to core reconstruction, whereas outer truncation allows faster stabilization with reduced fluctuations. These results highlight truncation as a tunable parameter for balancing focusing strength and turbulence robustness, with relevance to free-space optical communication, imaging, and optical trapping.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"607 ","pages":"Article 132923"},"PeriodicalIF":2.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025932","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

Anapole-enhanced local fields for low-power optical trapping in all-dielectric metasurfaces 全介电超表面低功率光捕获的anapolle增强局部场

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-20 DOI: 10.1016/j.optcom.2026.132938

Yewen Mei, Junqiao Wang, Qiaoqiao Wang, Mengsha Xue, Jiangnan He, Jinyuan Yang

引用次数: 0

Real-time monitoring of beam wander and angle-of-arrival fluctuation under atmospheric turbulence for efficient laser coupling to single-mode optical fibers 大气湍流下激光与单模光纤有效耦合的光束漂移和到达角波动实时监测

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-16 DOI: 10.1016/j.optcom.2026.132920

Jeonghun Seong , Jaehyeon Lim , Gibeen Gu , Taewon Kim , Hyeokin Kang , Sunghun Lee , Wooseok Park , Hyosang Yoon , Young-Jin Kim

{"title":"Real-time monitoring of beam wander and angle-of-arrival fluctuation under atmospheric turbulence for efficient laser coupling to single-mode optical fibers","authors":"Jeonghun Seong , Jaehyeon Lim , Gibeen Gu , Taewon Kim , Hyeokin Kang , Sunghun Lee , Wooseok Park , Hyosang Yoon , Young-Jin Kim","doi":"10.1016/j.optcom.2026.132920","DOIUrl":"10.1016/j.optcom.2026.132920","url":null,"abstract":"<div><div>Atmospheric effects degrade the performance of free-space optical links, which has prompted extensive research over several decades. Most studies have focused on scintillation, which describes the fluctuation in received optical power at the receiver. Meanwhile, the beam wander (BW) and angle-of-arrival (AoA) fluctuations are two factors that directly impact the position and angular movement of the optical beam in free-space. These effects are especially crucial for single-mode fiber-coupled free-space optical (FSO) communication systems to achieve high bandwidth and large-capacity data transmission via well-established fiber-optic communication components. However, despite their significance, detailed studies on BW and AoA fluctuations have not been addressed. In this study, we present a real-time monitoring system capable of simultaneously measuring the BW and AoA fluctuations with high precision using a single commercial camera; the system achieves a positional resolution within 80 μm (RMSE: 30.2 μm) and an angular resolution of 80 μrad (RMSE: 20.6 μrad). The atmospheric effects were evaluated using a collimated beam at 635 nm wavelength and 2.5 mW output power over a round-trip link of 130 m. The experimental results demonstrate that BW and AoA fluctuations exhibit dispersive probabilistic distributions depending on the strength of optical turbulence expressed with <em>C</em><sub><em>n</em></sub><sup><em>2</em></sup>. Notably, the correlation of the beam centroid and AoA in both x- and y-directions moved with correlation coefficients between −0.72 and + 0.82. This work clarifies the necessity of distinguishing the two atmospheric effects (BW and AoA) and our findings offer valuable insights for optimizing the single-mode fiber-coupled FSO communication systems and high-precision laser-directed systems.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"607 ","pages":"Article 132920"},"PeriodicalIF":2.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026023","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

Accurate and low-cost Gaussian beam profiling with pinhole and single-pixel detector 精确和低成本的高斯光束剖面与针孔和单像素探测器

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-20 DOI: 10.1016/j.optcom.2026.132937

Yunfeng Li , Eneko Lopez , Jaione Etxebarria-Elezgarai , Andreas Seifert

{"title":"Accurate and low-cost Gaussian beam profiling with pinhole and single-pixel detector","authors":"Yunfeng Li , Eneko Lopez , Jaione Etxebarria-Elezgarai , Andreas Seifert","doi":"10.1016/j.optcom.2026.132937","DOIUrl":"10.1016/j.optcom.2026.132937","url":null,"abstract":"<div><div>Accurate laser beam profiling is the basis for alignment, focusing, and power delivery, but measurements are often distorted by finite apertures, limited axial scanning, and hardware limitations. We present a pinhole+single-pixel method for Gaussian beam profiling that combines multi-plane fitting of the propagation radius with an explicit finite-aperture model and a regularized, band-limited deconvolution. By fitting the beam propagation curve to measured beam radii along many axial positions, robust estimates of the beam waist and its position are obtained, avoiding bias caused by approaches that only consider divergence angle measurements. An operational rule based on the waist-to-aperture ratio <span><math><mrow><msub><mrow><mi>w</mi></mrow><mrow><mn>0</mn></mrow></msub><mo>/</mo><mi>d</mi></mrow></math></span> indicates when convolution bias is negligible and when safeguarded deconvolution without 4<span><math><mi>σ</mi></math></span> undershoot is beneficial. The workflow supports free-space and lens-assisted configurations with uncertainty propagation, is wavelength-agnostic via detector substitution, and remains cost-effective.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"607 ","pages":"Article 132937"},"PeriodicalIF":2.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026024","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

Improving the measurement velocity in self-mixing interferometry 提高自混合干涉测量的测量速度

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-13 DOI: 10.1016/j.optcom.2025.132691

Jialong Ren , Peng Wu , Haonan Zhong , Yongxing Liu , Jing Zhang

引用次数: 0

High-average-power 1.62-μm optical parametric amplification using four-beam pumping 采用四光束抽运的高平均功率1.62 μm光参量放大

IF 2.5 3区物理与天体物理

Optics Communications Pub Date : 2026-06-01 Epub Date: 2026-01-22 DOI: 10.1016/j.optcom.2026.132950

Mingwei Mao, Ruiming Wang, Zhihui Yang, Yuan Tang, Yulong Tang

{"title":"High-average-power 1.62-μm optical parametric amplification using four-beam pumping","authors":"Mingwei Mao, Ruiming Wang, Zhihui Yang, Yuan Tang, Yulong Tang","doi":"10.1016/j.optcom.2026.132950","DOIUrl":"10.1016/j.optcom.2026.132950","url":null,"abstract":"<div><div>Currently, the average output power of single-beam optical parametric amplification (OPA) is limited to the 100-W level due to the constraints of the average power of the pump laser. OPA pumped by multiple laser beams can transfer the energy from multiple pump lasers to the same signal laser through nonlinear amplification, and it has great potential for increasing the average power of the OPA system. In this paper, a four-beam 1030-nm ∼1-ps laser-pumped OPA system using a KTA crystal is established to investigate the high-power and high-efficiency amplification operation. Signal laser output at 1.62 μm with an average power greater than 6.5 W and efficiency larger than 15% has been achieved, thereby verifying the feasibility of achieving high average power through multi-beam pumped OPA. By adjusting the non-collinear angles of each pump beam, amplification bandwidth of the signal beam can be expanded from 14.8 nm to 33.1 nm. This provides a viable solution for spectral synthesis and laser pulse compression with multi-beam pumped OPA. Additionally, two-dimension array of frequency-doubling and sum-frequency generation in the multi-beam pumped OPA system is analyzed, offering new insights into exploring complex spatiotemporal nonlinear processes.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"607 ","pages":"Article 132950"},"PeriodicalIF":2.5,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080064","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