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Progress in the fabrication of rare earth doped optical fiber by standard and Sol-Gel derived granulated oxides 标准氧化物和溶胶-凝胶法制备掺稀土光纤的研究进展

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/ALT.1.103

D. Etissa, S. Pilz, M. Ryser, V. Romano

{"title":"Progress in the fabrication of rare earth doped optical fiber by standard and Sol-Gel derived granulated oxides","authors":"D. Etissa, S. Pilz, M. Ryser, V. Romano","doi":"10.12684/ALT.1.103","DOIUrl":"https://doi.org/10.12684/ALT.1.103","url":null,"abstract":"We produced active optical fibers by the doped granulate silica-method. The granulates were derived from the sol-gel technology. We determined volume percentage and distribution of chemical elements in the fabricated glasses fiber by the analytical technique of Energy-Dispersive X-ray (EDX), Scanning Electron Microscopy (SEM), Electron Probe Microanalysis (EPMA) and the degree of crystallization by X-Ray Diffraction analysis (XRD). Furthermore we measured fluctuations of the Refractive Index Profile (RIP) and scattering losses of the fiber core. It was observed from the RIP measurement that the average index difference with respect to the undoped silica was 5.3*10-3, and thus the optical fiber has a numerical aperture of 0.12. XRD measurements and investigations with SEM showed that the manufactured optical fiber has an amorphous structure. The dopant and co-dopant elements in the core region were uniformly distributed. Although we found strong isolated scattering centers in the fabricated fiber, the loss of the fibers was determined to be 0.35- 3dB/m for selected fiber pieces. Here we present our progress of improving the optical quality of fibers produced from granulates. ","PeriodicalId":103215,"journal":{"name":"ALT Proceedings","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132882253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Explosive Boiling of Transparent Liquids on Absorbing Targets Heated by Short Laser Pulses 激光短脉冲加热吸收靶上透明液体的爆炸沸腾

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/ALT.1.95

A. Samokhin, A. P. Bazhulin, N. N. Il'ichev, A. Ivochkin, P. Pivovarov, I. Stuchebrukhov

引用次数: 0

Selective Ablation in Cu(In,Ga)Se2 thin-film solar cells – analysis of different process regimes at sub-picosecond to nanosecond pulse duration. Cu(in,Ga)Se2薄膜太阳能电池的选择性烧蚀——亚皮秒到纳秒脉冲持续时间下不同工艺制度的分析。

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/ALT.1.102

A. Burn, Martin Muralt, R. Witte, B. Frei, S. Nishiwaki, S. Buecheler, V. Romano

{"title":"Selective Ablation in Cu(In,Ga)Se2 thin-film solar cells – analysis of different process regimes at sub-picosecond to nanosecond pulse duration.","authors":"A. Burn, Martin Muralt, R. Witte, B. Frei, S. Nishiwaki, S. Buecheler, V. Romano","doi":"10.12684/ALT.1.102","DOIUrl":"https://doi.org/10.12684/ALT.1.102","url":null,"abstract":"Recent achievements in Cu(In,Ga)Se2 (CIGS) thin film technology allow the industrial production ofhighly efficient solar modules. A large growth of the CIGS-based solar cell production volume can beexpected for the coming years thanks to some favorable properties inherent to this absorber type. A majordrawback of CIGS is the inefficient patterning process. Since CIGS is a particularly difficult material forlaser ablation there is still no industrial all-laser scribing solution available. Manufacturers fall back onmechanical needle scribing for the P2 and P3 scribing process and have to accept substantial broadeningof the electrical interconnects due to unpredictable chipping at the scribe borders. In the present study weexplored a large variety of possible processes for the P1-P3 scribing at different wavelengths and indifferent pulse duration regimes. Beside the direct ablation of CIGS with ultrashort pulses we alsoinvestigated more exotic processes like layer side lift-off variants. The resulting scribes were analyzedusing electron microscopy (EM), laser scanning microscopy (LSM), energy dispersive X-ray spectroscopy(EDX) and electrical conductivity measurements. The most promising processes were selected forproducing functional mini-modules. Multiple optimization cycles allowed us to select the processes withthe best performance in the mini-module.","PeriodicalId":103215,"journal":{"name":"ALT Proceedings","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125223046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Infrared broadband source from 1000nm to 1700nm, based on an Erbium, Neodymium and Bismuth doped double-clad fiber 红外宽频源1000nm ~ 1700nm，基于掺铒、钕、铋双包层光纤

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/ALT.1.73

S. Pilz, D. Etissa, C. Barbosa, V. Romano

引用次数: 1

Raman structural study of random olefin copolymers 无规烯烃共聚物的拉曼结构研究

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/ALT.1.80

Yu.V. Zavgorodnev, K. Prokhorov, G. Y. Nikolaeva, E. Sagitova, P. Pashinin, A. Kovalchuk, A. N. Klyamkina, P. M. Nedorezova, L. Novokshonova, T. Ushakova, E. Starchak, B. F. Shklyaruk, M. Guseva, P. Donfack, A. Materny

引用次数: 0

The resonance fluorescence spectra of N two-level quantum systems located around the spherical nanoantenna 球形纳米天线周围N二能级量子系统的共振荧光光谱

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/ALT.1.85

Y. Vladimirova, V. Klimov, V. Pastukhov, V. Zadkov

{"title":"The resonance fluorescence spectra of N two-level quantum systems located around the spherical nanoantenna","authors":"Y. Vladimirova, V. Klimov, V. Pastukhov, V. Zadkov","doi":"10.12684/ALT.1.85","DOIUrl":"https://doi.org/10.12684/ALT.1.85","url":null,"abstract":"Modification of the resonance fluorescence spec-trum of a two-level atom driving by a lasermonochromatic field in the close proximity of aplasmonic nanostructure (metal sphere) is studiedin detail. It is shown that one can control thisspectrum varying four key parameters: distancebetween the atom and the nanosphere, atom’s lo-cation around the nanosphere, the radius of thenanosphere, and polarization of the incident ra-diation. These parameters affect the local fieldenchancement, transition frequency shift and themodification of the radiative decay rate of the atominteracting with the nanosphere, which lead tomodification of the resonance fluorescence spec-trum of the atom (frequency shift of the satellitelines in the Mollow-type triplet, widths of the lines,the spectrum intensity) by contrast with that onein free space. The permittivity of the metal thenanosphere is made of is also an additional param-eter, which defines the nonradiative decay. The lat-ter in combination with other parameters allows tocontinuously control the transition from resonancefluorescence enhancement to its quenching. Thecalculation results are generalized to the case ofN two-level atoms, distributed around the nanopar-ticle in the close proximity of its surface. Thecalculations were performed for different positionsof the detector relative to the system nanoparticle-atom(s).","PeriodicalId":103215,"journal":{"name":"ALT Proceedings","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115365977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Powder technology and innovative fiber design enabling a new generation of high-power single-mode-fiber laser sources 粉末技术和创新的光纤设计使新一代高功率单模光纤激光源成为可能

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/ALT.1.72

R. Dauliat, D. Gaponov, R. Jamier, K. Schuster, S. Grimm, S. Valette, A. Benoît, F. Salin, P. Roy

引用次数: 1

Self-Q-switched Cr,Nd:ReVO4 (Re=Gd, Y) crystal lasers 自调q Cr,Nd:ReVO4 (Re=Gd, Y)晶体激光器

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/ALT.1.69

H. Yu, H. Zhang

引用次数: 0

Multi-stage ytterbium fiber-amplifier seeded by a gain-switched laser diode 由增益开关激光二极管播种的多级镱光纤放大器

ALT Proceedings Pub Date : 2012-11-01 DOI: 10.12684/alt.1.101

M. Ryser, S. Pilz, A. Burn, V. Romano