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Optical characterization of strain sensing cables for Brillouin optical time domain analysis 用于布里渊光时域分析的应变传感电缆光学特性
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-07-29 DOI: 10.1051/jeos/2022007
G. Bolognini, L. Rossi, F. Bastianini, F. Falcetelli, R. Di Sante, P. Bocheński
{"title":"Optical characterization of strain sensing cables for Brillouin optical time domain analysis","authors":"G. Bolognini, L. Rossi, F. Bastianini, F. Falcetelli, R. Di Sante, P. Bocheński","doi":"10.1051/jeos/2022007","DOIUrl":"https://doi.org/10.1051/jeos/2022007","url":null,"abstract":"Two innovative optical fiber cable layouts designed to improve strain measurement accuracy for Brillouin Optical Time Domain Analysis (BOTDA) sensors through improved strain transfer efficiency are presented and discussed. Swept Wavelength Interferometry (SWI) is used to experimentally evaluate their performance alongside analytical models and numerical simulation through Finite Element Method (FEM). The results show good agreement between the different methods and show that the second sensing cable design presents good features to minimize the mismatch between measured and actual strain. Finally, the strain response of both strain and temperature sensing cables of this design are evaluated, showing that their difference in response is reliable enough to allow temperature compensation.","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46748103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Cubic–quartic optical soliton perturbation and modulation stability analysis in polarization-controlled fibers for Fokas-Lenells equation Fokas-Lennells方程在偏振控制光纤中的三次-四次光孤子扰动和调制稳定性分析
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-07-29 DOI: 10.1051/jeos/2022008
K. Al-Ghafri, E. Krishnan, A. Biswas
{"title":"Cubic–quartic optical soliton perturbation and modulation stability analysis in polarization-controlled fibers for Fokas-Lenells equation","authors":"K. Al-Ghafri, E. Krishnan, A. Biswas","doi":"10.1051/jeos/2022008","DOIUrl":"https://doi.org/10.1051/jeos/2022008","url":null,"abstract":"The objective of this study is to investigate miscellaneous wave structures for perturbed Fokas–Lenells equation (FLE) with cubic-quartic dispersion in polarization-preserving fibers. Based on the improved projective Riccati equations method, various types of soliton solutions such as bright soliton, combo dark–bright soliton, singular soliton and combo singular soliton are constructed. Additionally, a set of periodic singular waves are also retrieved. The dynamical behaviors of some obtained solutions are depicted to provide a key to understanding the physics of the model. The modulation instability of the FLE is reported by employing the linear stability analysis which shows that all solutions are stable.","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44557526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Coherence onset in PT-symmetric organic microcavities: towards directional propagation of light pt对称有机微腔的相干性:朝向光的定向传播
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-07-28 DOI: 10.1051/jeos/2022006
Karla Roszeitis, M. Sūdžius, A. Palatnik, Rebekka Koch, Jan Carl Budich, K. Leo
{"title":"Coherence onset in PT-symmetric organic microcavities: towards directional propagation of light","authors":"Karla Roszeitis, M. Sūdžius, A. Palatnik, Rebekka Koch, Jan Carl Budich, K. Leo","doi":"10.1051/jeos/2022006","DOIUrl":"https://doi.org/10.1051/jeos/2022006","url":null,"abstract":"For the investigation of non-Hermitian effects and physics under parity-time (PT) symmetry, photonic systems are ideal model systems for both experimental and theoretical research. We investigate a fundamental building block of a potential photonic device, consisting of coupled organic microcavities. The coupled system contains cavities with gain and loss and respects parity-time symmetry, leading to non-Hermitian terms in the corresponding Hamiltonian. Experimentally, two coupled cavities are realized and driven optically using pulsed laser excitation up to the lasing regime. We show that above the lasing threshold, when coherence evolves, the coupled-cavity system starts to operate asymmetrically, generating more light on one side of the device, being characteristic of non-Hermitian PT-symmetric systems. Calculations and simulations on a Su-Schrieffer-Heeger (SSH) chain composed of these PT-symmetric unit cells show the emergence of non-trivial topological features.","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42973461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Study of injection-locked stabilized, short cavity Brillouin ring laser source design for fiber sensing applications 用于光纤传感的注入锁定稳定短腔布里渊环激光光源设计研究
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-07-28 DOI: 10.1051/jeos/2022005
G. Bolognini, F. Bastianini, L. Rossi
{"title":"Study of injection-locked stabilized, short cavity Brillouin ring laser source design for fiber sensing applications","authors":"G. Bolognini, F. Bastianini, L. Rossi","doi":"10.1051/jeos/2022005","DOIUrl":"https://doi.org/10.1051/jeos/2022005","url":null,"abstract":"A new pump-seeded, short-cavity Brillouin ring laser source layout intended for Brillouin sensing applications is showcased, showing increased high maximum output (1.5 mW), a strong linewidth narrowing effect (producing light with a linewidth of 10 kHz) and limited RIN (~-145 dB/Hz), providing an ultranarrow, highly stable BRL source that can also be employed as a pump-probe source for BOTDA applications.","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42880605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
It is a sufficient condition only, not a necessary and sufficient condition, for decomposing wavefront aberrations 这只是分解波前像差的充分条件，而不是充分必要条件
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-06-24 DOI: 10.1051/jeos/2022004
P. Lin
{"title":"It is a sufficient condition only, not a necessary and sufficient condition, for decomposing wavefront aberrations","authors":"P. Lin","doi":"10.1051/jeos/2022004","DOIUrl":"https://doi.org/10.1051/jeos/2022004","url":null,"abstract":"The classic equation for decomposing the wavefront aberrations of axis-symmetrical optical systems has the form W(h₀,ρ,Φ)=ΣΣΣC(2j+m)(2p+m)m.(h₀)Λ(2j+m). (ρ)Λ(2p+m).(cosΦ)Λm, where j, p and m are non-negative integers, ρ and Φ are the polar coordinates of the pupil, and h₀ is the object height. However, one non-zero component of the primary aberrations (i.e., C133h₀ρ³(cosΦ)³) is missing from this equation when the image plane is not the Gaussian image plane. This implies that the equation is a sufficient condition only, rather than a necessary and sufficient condition, since it cannot guarantee that all of the components of the aberrations can be found. Accordingly, this letter presents a new method for determining all the components of aberrations of any order. The results show that three and five components of the secondary and tertiary aberrations, respectively, are missing in the existing literature.\u0000","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44885187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Atmospheric Plasma Jet processing for figure error correction of an optical element made from S-BSL7 用于校正S-BSL7光学元件图形误差的大气等离子体射流处理
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-06-24 DOI: 10.1051/jeos/2022003
H. Müller, T. Waak, U. Birnbaum, G. Böhm, T. Arnold
{"title":"Atmospheric Plasma Jet processing for figure error correction of an optical element made from S-BSL7","authors":"H. Müller, T. Waak, U. Birnbaum, G. Böhm, T. Arnold","doi":"10.1051/jeos/2022003","DOIUrl":"https://doi.org/10.1051/jeos/2022003","url":null,"abstract":"To meet the increasing market demand for optical components, Plasma Jet Machining (PJM) of Borosilicate Crown Glass (BCG), which can be an alternative to Fused Silica, is presented. Surface figure error correction was performed by applying reactive plasma jet etching, where a fluorine containing microwave driven plasma jet is employed to reduce the figure error in a deterministic dwell-time controlled dry etching process. However, some of the glass constituents of BCG cause the formation of a residual layer during surface treatment which influences the local material removal. By heating the substrate to about Ts= 325°C to 350°C during processing, the etching behavior can clearly be improved. Geometric conditions of the optical element nevertheless lead to a characteristic temperature distribution on the substrate surface, which requires an adjustment of the local dwell times in order to obtain the required material removal. Furthermore, the resulting local surface roughness is also influenced by the surface temperature distribution. It is shown that figure error can be significantly reduced by taking the local temperature distribution and resulting local etching rates into account. A subsequent polishing step smoothens roughness features occurring during etching to provide optical surface quality.","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43443479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
Ultrafast broadband optical modulation in indium tin oxide/titanium dioxide 1D photonic crystal 氧化铟锡/二氧化钛一维光子晶体的超快宽带光调制
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-05-19 DOI: 10.1051/jeos/2022009
L. Moscardi, S. Varas, A. Chiasera, F. Scotognella, M. Guizzardi
{"title":"Ultrafast broadband optical modulation in indium tin oxide/titanium dioxide 1D photonic crystal","authors":"L. Moscardi, S. Varas, A. Chiasera, F. Scotognella, M. Guizzardi","doi":"10.1051/jeos/2022009","DOIUrl":"https://doi.org/10.1051/jeos/2022009","url":null,"abstract":"Photonic crystals can integrate plasmonic materials such as indium tin oxide in their structure. Exploiting indium tin oxide plasmonic properties, it is possible to tune the photonic band gap of the photonic crystal upon the application of an external stimuli. In this work, we have fabricated a one-dimensional multilayer photonic crystal alternating indium tin oxide and titanium dioxide via radiofrequency sputtering and we have triggered its optical response with ultrafast pump-probe spectroscopy. Upon photoexcitation, we observe a change in the refractive index of indium tin oxide. Such an effect has been used to create a photonic crystal that changes its photonic bandgap in an ultrafast time scale. All optical modulation in the visible region, that can be tuned by designing the photonic crystal, has been demonstrated.","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43702116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1
Generalized Large Optics Fabrication Multiplexing 广义大光学制造多路复用
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-05-04 DOI: 10.1051/jeos/2022002
Daewook Kim, Xiaolong Ke, W. Pullen, Tianyi Wang, Hee-June Choi, V. Negi, Lei Huang, M. Idir
{"title":"Generalized Large Optics Fabrication Multiplexing","authors":"Daewook Kim, Xiaolong Ke, W. Pullen, Tianyi Wang, Hee-June Choi, V. Negi, Lei Huang, M. Idir","doi":"10.1051/jeos/2022002","DOIUrl":"https://doi.org/10.1051/jeos/2022002","url":null,"abstract":"High precision astronomical optics are manufactured through deterministic computer controlled optical surfacing processes, such as subaperture small tool polishing, magnetorheological finishing, bonnet tool polishing, and ion beam figuring. Due to the small tool size and the corresponding tool influence function, large optics fabrication is a highly time-consuming process. The framework of multiplexed figuring runs for the simultaneous use of two or more tools is presented. This multiplexing process increases the manufacturing efficiency and reduces the overall cost using parallelized subaperture tools.","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45128925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
Comments about Dispersion of Light Waves 关于光波色散的几点看法
IF 1.5 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2022-04-12 DOI: 10.1051/jeos/2022001
H. Lefèvre
{"title":"Comments about Dispersion of Light Waves","authors":"H. Lefèvre","doi":"10.1051/jeos/2022001","DOIUrl":"https://doi.org/10.1051/jeos/2022001","url":null,"abstract":". Dispersion of light waves is well known, but the subject deserves some comments. Certain classical equations do not fully respect causality; as an example, group velocity v g is usually given as the fi rst derivative of the angular frequency x with respect to the angular spatial frequency k m (or wavenumber) in the medium, whereas it is k m that depends on x . This paper also emphasizes the use of phase index n and group index n g , as inverse of their respective velocities, normalized to 1/ c , the inverse of free-space light velocity. This clari fi es the understanding of dispersion equations: group dispersion parameter D is related to the fi rst derivative of n g with respect to wavelength k , whilst group velocity dispersion GVD is also related to the fi rst derivative of n g , but now with respect to angular frequency x . One notices that the term second order dispersion does not have the same meaning with k , or with x . In addition, two original and amusing geometrical constructions are proposed; they simply derive group index n g from phase index n with a tangent , which helps to visualize their relationship. This applies to bulk materials, as well as to optical fi bers and waveguides, and this can be extended to birefringence and polarization mode dispersion in polarization-maintaining fi bers or birefringent waveguides.","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":" ","pages":""},"PeriodicalIF":1.5,"publicationDate":"2022-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46867414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 2
Precise spectrophotometric method for semitransparent metallic thin-film index determination using interference enhancement 干涉增强法测定半透明金属薄膜折射率的精密分光光度法
IF 1.9 4区 物理与天体物理
Journal of the European Optical Society-Rapid Publications Pub Date : 2021-12-21 DOI: 10.1186/s41476-021-00172-9
Riley Shurvinton, Fabien Lemarchand, Antonin Moreau, Julien Lumeau
{"title":"Precise spectrophotometric method for semitransparent metallic thin-film index determination using interference enhancement","authors":"Riley Shurvinton,&nbsp;Fabien Lemarchand,&nbsp;Antonin Moreau,&nbsp;Julien Lumeau","doi":"10.1186/s41476-021-00172-9","DOIUrl":"10.1186/s41476-021-00172-9","url":null,"abstract":"<div><p>A precise spectrophotometric method to determine the refractive index of a semitransparent metallic thin film is presented. This method relies on interference enhancement of the measured spectra, employing an opaque substrate with a dielectric spacer layer beneath the absorbing layer of interest to create interference fringes.The resulting spectral oscillations of the stack are highly sensitive to the properties of the top absorbing layer, allowing precise determination of the refractive index via fitting. The performance of this method is verified using simulations in comparison to the typical method of depositing the absorbing thin film directly onto a transparent substrate. An experimental demonstration is made for titanium thin films over the visible range (370-835 nm). The refractive index of these films is extracted from experimental data using a combination of the Modified Drude and Forouhi-Bloomer models. This method showed high repeatability and precision, and is verified for Ti films between 6-70 nm thickness.</p></div>","PeriodicalId":674,"journal":{"name":"Journal of the European Optical Society-Rapid Publications","volume":"17 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jeos.springeropen.com/counter/pdf/10.1186/s41476-021-00172-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41652753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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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