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1994 Conference on Lasers and Electro-Optics Europe最新文献

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Possibilities of depopulating the final level of 3 µm self-limited laser transitions in Er-and Ho-doped fluoride crystals er和ho掺杂氟化物晶体中3µm自限激光跃迁最终能级去填充的可能性
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.ctuk70
I. K. Razumova, A. Tkachuk, A. Sandulenko
{"title":"Possibilities of depopulating the final level of 3 µm self-limited laser transitions in Er-and Ho-doped fluoride crystals","authors":"I. K. Razumova, A. Tkachuk, A. Sandulenko","doi":"10.1364/cleo_europe.1994.ctuk70","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.ctuk70","url":null,"abstract":"Recently developed 3-µm lasers on erbium- and holmium-doped crystals are of great interest for laser physics and biomedicine. Achieving the frequency operating mode and increase of the pulse repetition rate for pulse-periodic mode are urgent. However, there are still unsolved problems of the studies of such 3-µm lasers.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131056352","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
Kilowatt single transverse discharge excited slab waveguide array CO2 laser 千瓦级单横放电激励平板波导阵列CO2激光器
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.cml2
J. Xin, G. Wei, Jin Wu Zhang, L. Xu, H. Dong
{"title":"Kilowatt single transverse discharge excited slab waveguide array CO2 laser","authors":"J. Xin, G. Wei, Jin Wu Zhang, L. Xu, H. Dong","doi":"10.1364/cleo_europe.1994.cml2","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.cml2","url":null,"abstract":"In the past decade, RF transverse discharge excited diffusively cooled CO2 lasers have experienced the advances from single-channel and folded-channel structures to waveguide array devices in aiming to obtain compact size and high quality beam. In recent years, an area scaling technique with the advantage of simplicity has been reported, which makes use of the slab waveguide large area RF discharge uniform excitation and an optical unstable resonator, and combines the diffusive cooling to make the compact kilowatt CO2 laser into reality. In this paper, we shall present a new technique, single RF discharge excited diffusively cooled 1 × 2 slab waveguide linear array CO2 laser, with which we have obtained over 1 kilowatt power output. In this type of laser structure, the electrode length is only 500 mm, and each array element has a cross section of 99 × 2 mm2. In experiments, the whole waveguide array is excited by a single RF input, and the RF frequency is 93 MHz. The gas mixture pressure is 70 torr with composition of CO2:N2:He:Xe = 1:1:3:5%. The output beam dimension of each array element is 2×16 mm2. In the far field, the two beam spots overlap and are combined into a single peak distribution. Experiments have shown that it is possible to use this technique to produce multikilowatt high beam quality power output from a compact-sized device.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123955914","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
Transient degenerate four-wave mixing in the saturable absorption of Cr4+:GSGG at 1.06 μm 1.06 μm Cr4+:GSGG饱和吸收中的瞬态简并四波混频
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.cwf56
A. Brignon, J. Huignard
{"title":"Transient degenerate four-wave mixing in the saturable absorption of Cr4+:GSGG at 1.06 μm","authors":"A. Brignon, J. Huignard","doi":"10.1364/cleo_europe.1994.cwf56","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.cwf56","url":null,"abstract":"Degenerate four-wave mixing (DFWM) interaction in saturable media has received considerable attention because of its potential for application to optical phase conjugation and correction of phase distortions through aberrating media. For this purpose, saturable solid-state materials, operating at the classical wavelength of neodymium lasers near λ0 = 1.06 μm, are of great interest. Here, we present DFWM in a tetravalent chromium-doped gadolinium-scandium-gallium-garnet (Cr4+:GSGG) crystal. Indeed, tetravalent chromium (Cr4+) doped crystals were recently shown to be effective solid-state saturable absorbers for neodymium lasers.1,2 Furthermore, in comparison with traditional saturable absorbers such as dyes in solution, polymeric films, and color-center materials, these crystals exhibit chemical stability, high optical damage threshold, compactness, and would enable operation at high repetition rates.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125491385","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
Quantum cascade lasers: coupled quantum well optoelectronics in the 4-100 µm wavelength region 量子级联激光器:4-100µm波长区域的耦合量子阱光电子学
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.ctum1
F. Capasso, J. Faist
{"title":"Quantum cascade lasers: coupled quantum well optoelectronics in the 4-100 µm wavelength region","authors":"F. Capasso, J. Faist","doi":"10.1364/cleo_europe.1994.ctum1","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.ctum1","url":null,"abstract":"A new semiconductor injection laser, which differs in a fundamental way from diode lasers, has been demonstrated using quantum structures grown by MBE and designed by band-structure engineering.1 Called the quantum cascade laser (QCL), this device relies on only one type of carrier (it is a unipolar semiconductor laser), and on electronic transitions between conduction band states arising in quantum wells. This is to be contrasted with diode lasers (including quantum well lasers) where the lasing transition occurs between electron and hole states across the semiconductor bandgap. Such pure quantum confinement unipolar lasers were originally proposed 25 years ago, but despite considerable effort this is the first structure to achieve laser action.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131756008","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
Free space photonic switching using spatial light modulators 利用空间光调制器的自由空间光子开关
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.cthk1
W. Crossland
{"title":"Free space photonic switching using spatial light modulators","authors":"W. Crossland","doi":"10.1364/cleo_europe.1994.cthk1","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.cthk1","url":null,"abstract":"Summary not available.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132679598","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
Slab-CO2 laser employing a hole-coupled waveguide resonator 采用孔耦合波导谐振腔的板- co2激光器
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.cff6
E. Yelden, R. J. Morley, H. K. Horn, K. Abramski, H. Baker, D. Hall, M. Taghizadeh
{"title":"Slab-CO2 laser employing a hole-coupled waveguide resonator","authors":"E. Yelden, R. J. Morley, H. K. Horn, K. Abramski, H. Baker, D. Hall, M. Taghizadeh","doi":"10.1364/cleo_europe.1994.cff6","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.cff6","url":null,"abstract":"Recent progress in high power, slab waveguide CO2 lasers, using RF excitation, has achieved specific power output approaching 30 kW·m-2 and absolute laser output powers in the kilowatt regime. These devices commonly employ a hybrid unstable resonator, or a plane mirror waveguide resonator containing a partially reflecting output coupler. Unstable resonators have the advantage of all-reflective mirrors and edge coupling, but are unable to provide sufficient frequency purity and beam quality for some applications, such as lidar and remote sensing. For large aperture devices using stable cavities, partially transmitting output mirrors, usually of ZnSe become expensive and are more readily damaged than full reflectors, whilst the large output beam provides difficulty with the subsequent beam handling. There is thus a need for a new resonator approach, which can deliver a small aperture beam from wide slab lasers, with good beam quality and spectral purity, using all-reflective optics.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129363578","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
Advanced solid-state passive shutters based on Cr4+-doped Mg2SiO4 and Y2SiO5 crystals 基于Cr4+掺杂Mg2SiO4和Y2SiO5晶体的先进固态被动百叶窗
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.ctuk50
V. Mikhailov, N. Zhavoronkov, N. Kuleshov, A. C. Avtukh, V. G. Shcherbitsky, B. Minkov
{"title":"Advanced solid-state passive shutters based on Cr4+-doped Mg2SiO4 and Y2SiO5 crystals","authors":"V. Mikhailov, N. Zhavoronkov, N. Kuleshov, A. C. Avtukh, V. G. Shcherbitsky, B. Minkov","doi":"10.1364/cleo_europe.1994.ctuk50","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.ctuk50","url":null,"abstract":"It is known that Cr4+-doped laser crystals, such as Mg2SiO4, Y3A15O12, and Y2SiO5, have beautiful lasing characteristics.1,2,3 However in our opinion, the nonlinear properties of Cr4+-doped materials are very important too, because they allow creation of suitable devices for quantum electronics such as passive Q-switchers.2,4","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"3 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113976091","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
Investigations on a Ne-H2 Penning plasma laser operating in a hollow cathode discharge Ne-H2 Penning等离子体激光器在空心阴极放电中的研究
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.ctuk95
G. Petrov, P. Pramatarov, M. Stefanova
{"title":"Investigations on a Ne-H2 Penning plasma laser operating in a hollow cathode discharge","authors":"G. Petrov, P. Pramatarov, M. Stefanova","doi":"10.1364/cleo_europe.1994.ctuk95","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.ctuk95","url":null,"abstract":"Penning plasma laser is a laser whose upper laser level is populated through recombination processes and the lower laser level is intensively depopulated through Penning reactions with buffer gas atoms or molecules.1 In the Ne-H2 Penning plasma laser the hydrogen gas plays the role of the Penning component.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123578203","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
Crystal growth and laser properties of Nd-doped strontium fluorovanadate for diode pumped laser operation at 1.06 μm and 1.34 μm 掺nd氟钒酸锶在1.06 μm和1.34 μm二极管抽运激光下的晶体生长和激光性能
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.ctua4
M. Scott, I. Botheroyd, H. Gallagher, T. Han, A. I. Ferguson, B. Henderson
{"title":"Crystal growth and laser properties of Nd-doped strontium fluorovanadate for diode pumped laser operation at 1.06 μm and 1.34 μm","authors":"M. Scott, I. Botheroyd, H. Gallagher, T. Han, A. I. Ferguson, B. Henderson","doi":"10.1364/cleo_europe.1994.ctua4","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.ctua4","url":null,"abstract":"Due to the availability of efficient and compact laser diodes as pump sources, there has been a recent resurgence of interest in crystals having the apatite structure.1,2 In this paper we report the crystal growth, optical characterisation and laser properties of a new fluorapatite host Sr10(VO4)6F2 (SVAP) for use as a gain medium for diode pumped laser action at both 1.06 μm and 1.34 μm.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124889629","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
Crystalline waveguide lasers 晶体波导激光器
1994 Conference on Lasers and Electro-Optics Europe Pub Date : 1900-01-01 DOI: 10.1364/cleo_europe.1994.cmf2
A. Trapper
{"title":"Crystalline waveguide lasers","authors":"A. Trapper","doi":"10.1364/cleo_europe.1994.cmf2","DOIUrl":"https://doi.org/10.1364/cleo_europe.1994.cmf2","url":null,"abstract":"Summary not available.","PeriodicalId":276336,"journal":{"name":"1994 Conference on Lasers and Electro-Optics Europe","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128815903","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
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