Optics Communications最新文献_第2页

Three-dimensional displacement measurement based on DIC-assisted polarization fringe projection

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-22 DOI: 10.1016/j.optcom.2024.131347

Zhenmin Zhu , Taowei Zhu , Wenqing Long , Lifa He , Hongwei Qiu , Lisheng Zhou

{"title":"Three-dimensional displacement measurement based on DIC-assisted polarization fringe projection","authors":"Zhenmin Zhu , Taowei Zhu , Wenqing Long , Lifa He , Hongwei Qiu , Lisheng Zhou","doi":"10.1016/j.optcom.2024.131347","DOIUrl":"10.1016/j.optcom.2024.131347","url":null,"abstract":"<div><div>Digital image correlation (DIC)-assisted fringe projection profilometry (FPP) is a recently developed method for measuring the shape and displacement of complex structures. However, FPP only requires the fringe pattern on the object surface while DIC only requires the texture pattern on the object surface. Therefore, separating high-quality fringe patterns and texture patterns has always been a research difficulty. In this paper, a texture-separable polarization phase-shift coding strategy (TSPP) is proposed to superimpose the phase-shift pattern of the horizontal polarization state and the white light texture pattern of the vertical polarization state into a new phase-shift fringe. Since the polarization states in two orthogonal directions do not affect each other, the texture pattern on the surface of the object can be obtained while projecting the phase-shifted fringes. Our proposed method can separate fringe patterns and texture patterns in real time without the need for additional hardware equipment, and can cope with different lighting environments to obtain high-quality fringe and texture patterns. Experimental results show that the proposed method can obtain better three-dimensional reconstruction effects and displacement measurement results.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"576 ","pages":"Article 131347"},"PeriodicalIF":2.2,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744919","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

Characteristics of metallic coated ultra-short semiconductor Fabry-Pérot lasers 金属涂层超短半导体法布里-佩罗激光器的特性

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-21 DOI: 10.1016/j.optcom.2024.131337

Qiaoge Sun , Yongzhen Huang , Jinlong Xiao , Yuede Yang , Qinwei Zhou , Dan Chen , Zhihong Zhu , Chucai Guo

{"title":"Characteristics of metallic coated ultra-short semiconductor Fabry-Pérot lasers","authors":"Qiaoge Sun , Yongzhen Huang , Jinlong Xiao , Yuede Yang , Qinwei Zhou , Dan Chen , Zhihong Zhu , Chucai Guo","doi":"10.1016/j.optcom.2024.131337","DOIUrl":"10.1016/j.optcom.2024.131337","url":null,"abstract":"<div><div>Fabry-Pérot (F–P) lasers have attracted significant attention due to their extensive applications in optical communication and precision measurement fields. However, traditional F–P lasers are relatively large in size and face challenges in directly achieving single-mode lasing, which limits their applications. In this study, we employ a metallic coating layer to significantly enhance the light confinement of the F–P cavity, thereby substantially reducing the cavity length of the F–P laser. We have experimentally developed an F–P laser with a cavity length of approximately 6.8 μm, successfully achieving single-mode lasing at room temperature. The lasing mode exhibits an ultra-narrow linewidth of 0.06 nm and a relative high side-mode suppression ratio exceeding 30 dB, along with good linear polarization. Additionally, we propose a type of on-chip integrated laser based on metallic-coated F–P cavities, characterized by high coupling efficiency and large fabrication tolerances. Simulation results indicate that the coupling efficiency for double-ended and single-ended output waveguides reaches 79% and 55%, respectively. The metallic-coated ultra-short F–P lasers have great potential for applications in on-chip optical interconnects and photonic integrated chip systems.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"575 ","pages":"Article 131337"},"PeriodicalIF":2.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700853","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

A data processing method for multispectral emissivity and temperature with the introduction of new objective function and nonlinear constraints

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-21 DOI: 10.1016/j.optcom.2024.131311

Longjie Yang , Yonglin Bai , Jinkun Zheng , Bo Wang

{"title":"A data processing method for multispectral emissivity and temperature with the introduction of new objective function and nonlinear constraints","authors":"Longjie Yang , Yonglin Bai , Jinkun Zheng , Bo Wang","doi":"10.1016/j.optcom.2024.131311","DOIUrl":"10.1016/j.optcom.2024.131311","url":null,"abstract":"<div><div>The underdetermined equation in multispectral pyrometer temperature measurement involves simultaneous unknowns of emissivity and temperature, posing a challenging obstacle to achieving accurate temperature inversion. In recent years, constrained optimization algorithms have been increasingly employed to address this issue. However, these algorithms need to set the appropriate initial emissivity values in particular and the imposition of manual constraints on the search range for emissivity. In this paper, a new data processing method that does not require these artificial Settings is proposed. Our method incorporates new objective functions and nonlinear constraints into the inversion of multispectral emissivity and temperature, while employing the Barrier Function Interior Point Method as an optimization tool. In addition, it has to be mentioned that in the blackbody temperature setting of the reference temperature model, the temperature of the blackbody is set very close to the target temperature by the constrained optimization algorithm, which obviously does not meet the needs of large-scale temperature measurement. The data processing method proposed in this paper addresses situations where there is a significant difference between the blackbody set temperature and the target temperature, ensuring both accuracy and speed over a wide range. Experiments demonstrate that our proposed method achieves a relative error of less than 0.42% in emissivity inversion, less than 0.57% in temperature inversion, and a calculation time of under 0.2 s. Our method can be applied to some high-precision and fast temperature measurement occasions that require short processing time and small relative error.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"576 ","pages":"Article 131311"},"PeriodicalIF":2.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744918","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

Electrical spectra characterization of mode-locked fiber laser and application for high-speed optoelectronic devices measurement 模式锁定光纤激光器的电光谱特性及在高速光电器件测量中的应用

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-21 DOI: 10.1016/j.optcom.2024.131335

Xinhai Zou , Junfeng Zhu , Chao Jing , Zhiyao Zhang , Yali Zhang , Shangjian Zhang , Yong Liu , Ninghua Zhu

{"title":"Electrical spectra characterization of mode-locked fiber laser and application for high-speed optoelectronic devices measurement","authors":"Xinhai Zou , Junfeng Zhu , Chao Jing , Zhiyao Zhang , Yali Zhang , Shangjian Zhang , Yong Liu , Ninghua Zhu","doi":"10.1016/j.optcom.2024.131335","DOIUrl":"10.1016/j.optcom.2024.131335","url":null,"abstract":"<div><div>A calibration-free and three-in-one electro-optic frequency sweeping-based method is proposed for the electrical spectra and frequency response characterization of mode-locked fiber laser (MLFL) MLFL, intensity modulators (IMs), and photodetectors (PDs) with a shared measurement scheme. By carefully setting the frequency relationship between the swept frequency, the extra influence from other assisted devices besides device under test (DUT) is fully cancelled out by analyzing the power ratio between the single-tone driving signal and electrical signals of the MLFL after photodetection. Moreover, the wideband requirement of the assistant devices is reduced by half to that of the DUT in the cases of the MLFL, IM, and PD measurement, respectively. The microwave characterization of the MLFL, IM and PD are experimentally extracted with the proposed method and the measured results are compared to those obtained with the traditional electro-optic frequency sweeping method to check the consistency and accuracy.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"575 ","pages":"Article 131335"},"PeriodicalIF":2.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700254","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

Investigation on tolerance of computational ghost imaging for directional underwater turbulence

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-21 DOI: 10.1016/j.optcom.2024.131336

Lei Chen, Longfei Yin, Yanrui Guo, Haoyu Ge, Kaiduo Liu, Wenting Yu, Lingyun Zhu, Guohua Wu

{"title":"Investigation on tolerance of computational ghost imaging for directional underwater turbulence","authors":"Lei Chen, Longfei Yin, Yanrui Guo, Haoyu Ge, Kaiduo Liu, Wenting Yu, Lingyun Zhu, Guohua Wu","doi":"10.1016/j.optcom.2024.131336","DOIUrl":"10.1016/j.optcom.2024.131336","url":null,"abstract":"<div><div>This study investigates the effects of underwater turbulence on computational ghost imaging (CGI) technology, combining theoretical analysis with experimental data. We simulated vehicle-induced turbulence and utilized compressed sensing for image reconstruction to analyze its impact on image quality. Our findings reveal that turbulence, especially flow-aligned with the light beam, significantly degrades image quality, with the most pronounced effects at the signal reception end. As turbulence increases, image quality declines, and turbulence directionality substantially affects image quality, with parallel turbulence causing more wavefront aberrations. CGI shows tolerance to light-perpendicular turbulence, maintaining clarity despite resolution, contrast, and brightness reductions during intense turbulence. We introduced PSNR and SSIM to quantify the impact of turbulence on image quality, confirming CGI's resilience to turbulence interference. Our results imply that optimizing the vehicle platform's propulsion system to minimize turbulence in the signal detection direction can preserve ghost imaging performance. This research lays a scientific groundwork for improving CGI's turbulence resistance in underwater environments, aiding its practical use in complex underwater scenarios.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"576 ","pages":"Article 131336"},"PeriodicalIF":2.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744909","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-optic axial-strain sensor based on in-cavity micro-bubble fabry-perot interferometer 基于腔内微泡 fabry-perot 干涉仪的光纤轴向应变传感器

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-21 DOI: 10.1016/j.optcom.2024.131263

He Wang , Liangtao Hou , Jianwei Li , Jiuru Yang

引用次数: 0

Investigation of ultrasmall sidewall-insulated GaN via with large aspect ratio for the strategy of vertically stacked full-color Micro-LEDs 研究具有大纵横比的超小型侧壁绝缘氮化镓通孔，以实现垂直堆叠全彩 Micro-LED 战略

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-20 DOI: 10.1016/j.optcom.2024.131332

Yang Li , Kaixin Zhang , Tianxi Yang , Junyang Nie , Qiwei Li , Yijian Zhou , Tao Tao , Ting Zhi , Qun Yan , Jie Sun

{"title":"Investigation of ultrasmall sidewall-insulated GaN via with large aspect ratio for the strategy of vertically stacked full-color Micro-LEDs","authors":"Yang Li , Kaixin Zhang , Tianxi Yang , Junyang Nie , Qiwei Li , Yijian Zhou , Tao Tao , Ting Zhi , Qun Yan , Jie Sun","doi":"10.1016/j.optcom.2024.131332","DOIUrl":"10.1016/j.optcom.2024.131332","url":null,"abstract":"<div><div>Micro light-emitting diode (Micro-LED) is considered as an ideal candidate for near-eye, outdoor display, and light field photography applications. At present, the commercialization of full-color Micro-LED is limited by the mass transfer of red, green, and blue (R-B-G) sub-pixels. Hence, we proposed a full-color scheme of vertically stacked tricolor Micro-LED layers to avoid mass transfer, which owns over 1000 PPI (pixel per inch). In this solution, the sidewall-insulated via in the epilayer plays a critical role to achieve the electrical and mechanical integration of three monochromatic Micro-LEDs with Si-based complementary metal-oxide semiconductor (CMOS) driver. Therefore, the via processes of GaN-based epilayer were investigated systematically using available semiconductor processes in this article. The inductively coupled plasma (ICP) etching was employed to create the ultra-small micro-structure array using SiO<sub>2</sub> thin film as hard mask. Sidewall-insulated vias were fabricated with different aperture sizes (9.3, 7.5, and 3.4 μm) and a depth of about 4-μm. The vias with large aspect ratio are completely satisfy the requirement of designed vertical interconnection. This study aims to provide valuable reference for the commercial progress of high-resolution and full-color Micro-LEDs.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"575 ","pages":"Article 131332"},"PeriodicalIF":2.2,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700253","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

Flexible speckle-free polymer-stabilized liquid crystal screen for laser projection 用于激光投影的柔性无斑点聚合物稳定液晶屏幕

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-20 DOI: 10.1016/j.optcom.2024.131321

Weilong Zhou , Yifei Xie , Zhu Wang , Chenhang Shen , Yuhang Zheng , Zichun Le , Lin Li

引用次数: 0

Dual-mode topological rainbow based on Kagome sandwich structure

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-20 DOI: 10.1016/j.optcom.2024.131333

Hongxiang Zhang , Jianjun Gao , Rensheng Xie , Dayuan Xiong

引用次数: 0

Elliptical birefringence model for highly efficient study of SOP and DOP in complicated birefringent fiber

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-20 DOI: 10.1016/j.optcom.2024.131271

Junchang Huang , Xiaodong Yin , Li Xia , Yuhao Huang , Kun Yue , Binbin Li

{"title":"Elliptical birefringence model for highly efficient study of SOP and DOP in complicated birefringent fiber","authors":"Junchang Huang , Xiaodong Yin , Li Xia , Yuhao Huang , Kun Yue , Binbin Li","doi":"10.1016/j.optcom.2024.131271","DOIUrl":"10.1016/j.optcom.2024.131271","url":null,"abstract":"<div><div>Optical chirality has recently let to many novel prospects and applications and this phenomenon also exists in twisting linear birefringent fiber. However, it has not been investigated when the birefringence is non-uniform, namely, both the spinning rate and linear birefringence vary along the fiber axis. Additionally, this non-uniformity brings dissatisfaction in terms of computational efficiency when using traditional methodologies, such as the coupled mode theory and the cascaded linear phase delayer matrix model. In order to study this kind of complicated birefringent fiber (CBF), this work introduces an innovative solution to this issue: the elliptical phase delayer model, specifically designed to analyze situations where the optical fiber experiences arbitrary spinning. The derivation of this model employs the Jones matrix, and its validity and computational efficiency are verified through numerical calculations. Furthermore, this work explores the State of Polarization (SOP) of CBF using the proposed model. It also investigates the Degree of Polarization (DOP) of the output light wave, which is indicative of the depolarization effect due to spinning. This study presents an elliptical phase delayer model that offers an efficient means of calculating the SOP and DOP of CBF, and is also applicable to other spun optical structures.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"576 ","pages":"Article 131271"},"PeriodicalIF":2.2,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744912","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