Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cwk1
Anonymous
This paper is an overview of results obtained in investigations of SBS-based phase-conjugated devises: new possibilities and results achieved at the Institute of Experimental Physics of the Russian Federal Nuclear Center on development of SBS mirrors for a wide range of lasers (gas and solid-state). Special attention has been paid to questions of preparation and inlet of the SBS-mirror gas media. We give the SBS cell parameters and characteristics of various gas mixtures in a wide range of pressures and densities also including characteristics near the critical point and of liquefied gases as well. We give experimental results from investigations of processes competing with SBS at pulse lengths from 2ns to tens of microseconds when irradiated by single pulse or repetitively pulsed radiation with the pulse rate up to hundreds of kHz. The possibility of self-compensation of thermal and striction distortions in the SBS medium has been demonstrated experimentally. We have formulated criteria for selection of mixtures for SBS mirror operation under various conditions taking into account radiation self-action.
{"title":"SBS Mirrors for High Power Lasers","authors":"Anonymous","doi":"10.1364/cleo_europe.1998.cwk1","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cwk1","url":null,"abstract":"This paper is an overview of results obtained in investigations of SBS-based phase-conjugated devises: new possibilities and results achieved at the Institute of Experimental Physics of the Russian Federal Nuclear Center on development of SBS mirrors for a wide range of lasers (gas and solid-state). Special attention has been paid to questions of preparation and inlet of the SBS-mirror gas media. We give the SBS cell parameters and characteristics of various gas mixtures in a wide range of pressures and densities also including characteristics near the critical point and of liquefied gases as well. We give experimental results from investigations of processes competing with SBS at pulse lengths from 2ns to tens of microseconds when irradiated by single pulse or repetitively pulsed radiation with the pulse rate up to hundreds of kHz. The possibility of self-compensation of thermal and striction distortions in the SBS medium has been demonstrated experimentally. We have formulated criteria for selection of mixtures for SBS mirror operation under various conditions taking into account radiation self-action.","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"02 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86137343","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cwf48
J. Fève, B. Boulanger, I. Rousseau, B. Ménaert, G. Marnier
In a recent work. Roberts proposed a method for the improvement of the dispersion equations of uniaxial crystals[1], starting from precise and numerous refractive indices measurements, and from reliable phasematching data.
{"title":"Refinement of the dispersion equations of the nonlinear biaxial crystals KTiOAsO4, RbTiOAsO4 and CsTiOAsO4. Method and measurements.","authors":"J. Fève, B. Boulanger, I. Rousseau, B. Ménaert, G. Marnier","doi":"10.1364/cleo_europe.1998.cwf48","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cwf48","url":null,"abstract":"In a recent work. Roberts proposed a method for the improvement of the dispersion equations of uniaxial crystals[1], starting from precise and numerous refractive indices measurements, and from reliable phasematching data.","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74677853","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cmc2
A. Kemp, R. Conroy, G. Friel, B. Sinclair
Microchip laser are monolithic devices typically consisting of a sub-millimetre thick slice of solid state gain material, which is polished to give plane parallel surfaces on to which dielectric mirrors are directly coated. These lasers are longitudinally pumped by a laser diode. Such devices are highly-efficient and compact lasers which produce beams of high spatial and spectral quality [1].
{"title":"Guiding Effects in Nd:YVO4 Microchip Lasers","authors":"A. Kemp, R. Conroy, G. Friel, B. Sinclair","doi":"10.1364/cleo_europe.1998.cmc2","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cmc2","url":null,"abstract":"Microchip laser are monolithic devices typically consisting of a sub-millimetre thick slice of solid state gain material, which is polished to give plane parallel surfaces on to which dielectric mirrors are directly coated. These lasers are longitudinally pumped by a laser diode. Such devices are highly-efficient and compact lasers which produce beams of high spatial and spectral quality [1].","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74727849","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cwf44
O. Kuzmin, S. A. Kutovoĭ, E. Nesynov, V. Panyutin, A. A. Perfilin, V.L. Khait
The paper presents the results of preliminary investigations of spectral-luminescent properties of Pr:LaSc3(BO3)4 (Pr:LSB) crystal. Pr:LSB single crystals with different Pr concentrations were grown by Czochralski technique in iridium crucibles.
{"title":"Pr:LaSc3(BO3)4 - a new active medium for lasers radiating in the vicinity of 0.647 μm","authors":"O. Kuzmin, S. A. Kutovoĭ, E. Nesynov, V. Panyutin, A. A. Perfilin, V.L. Khait","doi":"10.1364/cleo_europe.1998.cwf44","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cwf44","url":null,"abstract":"The paper presents the results of preliminary investigations of spectral-luminescent properties of Pr:LaSc3(BO3)4 (Pr:LSB) crystal. Pr:LSB single crystals with different Pr concentrations were grown by Czochralski technique in iridium crucibles.","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"450 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79696756","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cthh26
N. Umemura, Y. Yap, Y. Mori, T. Sasaki, K. Yoshida, K. Kato
In previous publication 1 , we have reported the vacuum-ultraviolet (VUV) generation down to 0.185 μ m in CsLiB6O10 by mixing the fifth harmonic of a Nd:YAG laser at 1.0642 μ m and the output of a KTP OPO pumped by the second-harmonic of the same Nd: YAG laser. However, no attempt was made to evaluate its performance for VUV generation at wavelengths longer than 0.19 μ m in this material. As a prior experiment, we have demonstrated the VUV generation at 0.1914 μ m by type-2 mixing between the fifth harmonic of a Nd:YAG laser at 1.0642 μ m and the output of a H2 Raman oscillator pumped by the same Nd:YAG laser. The phase-matching parameters tabulated in Table 1 were calculated with the Sellmeier’s equations and thermooptic constants reported in Ref.1. The 12-mm-long crystal used in this experiment was cut at θ ≃ 41 ° and ϕ =0 ° for type-2 second harmonic generation (SHG) at 0.5321 μ m. The entrance faces were polished with a flatness of λ /10 and no AR-coatings are applied for this crystal.
{"title":"Vacuum-Ultraviolet Generation in CsLiB6O10","authors":"N. Umemura, Y. Yap, Y. Mori, T. Sasaki, K. Yoshida, K. Kato","doi":"10.1364/cleo_europe.1998.cthh26","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cthh26","url":null,"abstract":"In previous publication 1 , we have reported the vacuum-ultraviolet (VUV) generation down to 0.185 μ m in CsLiB6O10 by mixing the fifth harmonic of a Nd:YAG laser at 1.0642 μ m and the output of a KTP OPO pumped by the second-harmonic of the same Nd: YAG laser. However, no attempt was made to evaluate its performance for VUV generation at wavelengths longer than 0.19 μ m in this material. As a prior experiment, we have demonstrated the VUV generation at 0.1914 μ m by type-2 mixing between the fifth harmonic of a Nd:YAG laser at 1.0642 μ m and the output of a H2 Raman oscillator pumped by the same Nd:YAG laser. The phase-matching parameters tabulated in Table 1 were calculated with the Sellmeier’s equations and thermooptic constants reported in Ref.1. The 12-mm-long crystal used in this experiment was cut at θ ≃ 41 ° and ϕ =0 ° for type-2 second harmonic generation (SHG) at 0.5321 μ m. The entrance faces were polished with a flatness of λ /10 and no AR-coatings are applied for this crystal.","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75276327","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.ctua8
A. Matkovskii, A. Durygin, A. Suchocki, D. Sugak, F. Wallrafen
The result of investigation of the UV, gamma irradiation, annealing in air (700-1300 K) and N2+H2 gas mixture (1700 K) on optical and lasing properties of Nd-doped YAlO3 (YAP-Nd) laser crystals are presented The crystals were grown by the Czochralski technique from iridium crucibles in 98% Ar+2% O2 atmosphere.
{"title":"Stable and Transient Colour Centers in YAlO3-ND Laser Crystals","authors":"A. Matkovskii, A. Durygin, A. Suchocki, D. Sugak, F. Wallrafen","doi":"10.1364/cleo_europe.1998.ctua8","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.ctua8","url":null,"abstract":"The result of investigation of the UV, gamma irradiation, annealing in air (700-1300 K) and N2+H2 gas mixture (1700 K) on optical and lasing properties of Nd-doped YAlO3 (YAP-Nd) laser crystals are presented The crystals were grown by the Czochralski technique from iridium crucibles in 98% Ar+2% O2 atmosphere.","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"204 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74462182","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cpd2.9
W. Chen, G. Mouret, B. Cochie, J. Burie, D. Boucher
New development of a broadly tunable continuous-wave (cw) infrared source is described. Long wavelength infrared radiation from 8-19 µm is produced by difference-frequency generation (DFG) in gallium selenide (GaSe) crystal. This, to our knowledge, is the first realization of cw DFG in GaSe up to 19 µm near its absorption edge.
{"title":"Long Wavelength Infrared Generation from 8-19 µm","authors":"W. Chen, G. Mouret, B. Cochie, J. Burie, D. Boucher","doi":"10.1364/cleo_europe.1998.cpd2.9","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cpd2.9","url":null,"abstract":"New development of a broadly tunable continuous-wave (cw) infrared source is described. Long wavelength infrared radiation from 8-19 µm is produced by difference-frequency generation (DFG) in gallium selenide (GaSe) crystal. This, to our knowledge, is the first realization of cw DFG in GaSe up to 19 µm near its absorption edge.","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"183 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74778047","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cpd1.6
H. Crespo, J. T. Mendonça, A. D. Santos, A. Antonetti
Photon acceleration is a well understood mechanism in plasma physics. Here we describe a similar experiment using non-ionised optical media (glass). An intense and surprising effect occurs, which leads to a cascade of perfectly coherent and synchronised beams of different frequencies, ranging from the infrared (near 800 nm) to the ultraviolet (around 300 nm).
{"title":"Cascade Acceleration of Photons front the Infrared to the Ultraviolet in Nonlinear Optical Media","authors":"H. Crespo, J. T. Mendonça, A. D. Santos, A. Antonetti","doi":"10.1364/cleo_europe.1998.cpd1.6","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cpd1.6","url":null,"abstract":"Photon acceleration is a well understood mechanism in plasma physics. Here we describe a similar experiment using non-ionised optical media (glass). An intense and surprising effect occurs, which leads to a cascade of perfectly coherent and synchronised beams of different frequencies, ranging from the infrared (near 800 nm) to the ultraviolet (around 300 nm).","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75475416","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cwm2
J. Hopkins, G. Valentine, W. Sibbett, J. Aus der Au, F. Morier-Genoud, U. Keller, A. Valster
The combination of a GaAs semiconductor saturable absorbing mirror (SESAM)1 and a low-threshold laser geometry2 has allowed the efficient production of stable low-noise femtosecond pulses. The highly asymmetric 4-mirror Cr3+LiSAF laser was pumped by 2 polarisation-combined narrow-stripe AlGaInP laser diodes each providing a maximum available power of 40mW incident on the crystal facet. The cw oscillation threshold of the laser was 16mW and the pulse repetition frequency was 153MHz. When output coupling through a high reflecting (HR) end mirror, the laser produced stable, sub 70 fs transform limited pulses at an average output power of 1mW. Modelocking could be sustained with pump powers as low as 21 mW.
{"title":"Ultralow-noise Battery Operated Passively Modelocked Cr3+:LiSAF laser","authors":"J. Hopkins, G. Valentine, W. Sibbett, J. Aus der Au, F. Morier-Genoud, U. Keller, A. Valster","doi":"10.1364/cleo_europe.1998.cwm2","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cwm2","url":null,"abstract":"The combination of a GaAs semiconductor saturable absorbing mirror (SESAM)1 and a low-threshold laser geometry2 has allowed the efficient production of stable low-noise femtosecond pulses. The highly asymmetric 4-mirror Cr3+LiSAF laser was pumped by 2 polarisation-combined narrow-stripe AlGaInP laser diodes each providing a maximum available power of 40mW incident on the crystal facet. The cw oscillation threshold of the laser was 16mW and the pulse repetition frequency was 153MHz. When output coupling through a high reflecting (HR) end mirror, the laser produced stable, sub 70 fs transform limited pulses at an average output power of 1mW. Modelocking could be sustained with pump powers as low as 21 mW.","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77291314","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}
Pub Date : 1998-01-01DOI: 10.1364/cleo_europe.1998.cthh65
J. Limeres, M. Carrascosa
Photorefractive phase conjugate mirrors have been widely investigated in the past years. In particular, self-pumped phase conjugators are specially usefull for technological applications because of their self alignment capabilities and compactness.
{"title":"Numerical Simulation of the Time Response of a Total Internal Reflection Self-Pumped BaTiO3 Phase Conjugate Mirror","authors":"J. Limeres, M. Carrascosa","doi":"10.1364/cleo_europe.1998.cthh65","DOIUrl":"https://doi.org/10.1364/cleo_europe.1998.cthh65","url":null,"abstract":"Photorefractive phase conjugate mirrors have been widely investigated in the past years. In particular, self-pumped phase conjugators are specially usefull for technological applications because of their self alignment capabilities and compactness.","PeriodicalId":10610,"journal":{"name":"Conference on Lasers and Electro-Optics Europe","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89815969","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：