S. Yamashita, S. Nakamura, E. Ishii, Y. Kadoya, M. Yamanishi
{"title":"Controlled Spontaneous Emission From Semiconductor Microcavity Light Emitting Triodes","authors":"S. Yamashita, S. Nakamura, E. Ishii, Y. Kadoya, M. Yamanishi","doi":"10.1109/CLEOPR.1997.610589","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610589","url":null,"abstract":"","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124190922","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}
{"title":"Spectrally Flat, Near Absolute Laser Trap Calibration Standards Utilizing Pyroelectric And Thermal Disks For Operation From 193 To 2200 Nm","authors":"B. Preppernau, D. Dooley","doi":"10.1109/CLEOPR.1997.610478","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610478","url":null,"abstract":"iance as a function of fiber length is shown for a N = 1.5 soliton in Fig. 3. Noise and squeezing levels were obtained by carrying out a numerical simulation of the positive-P quantum nonlinear Schrodinger e q ~ a t i o n . ~ , ~ The Ito stochastic partial differential equations describing the quantum evolution of the photon flux amplitude field directly allowed the normally-ordered quantum correlation functions to be evaluated. The finite sample ensemble averages for the normally-ordered photon number variances were checked for convergence with respect to discretization and sampling errors. The significance of these newly obtained results is multifold. First, they clearly demonstrate the importance of quantum noise in macroscopic systems. We have analyzed a nonlinear device constructed from a single-mode waveguide which conserve photon numbera fiber with an intensity dependent Kerr response-and shown that it gives rise to large photon-number fluctuations at its output. In addition, we have shown that another nonlinear device with a similar nonlinear response-a soliton nonlinear spectral-filter with the same soliton input pulses traveling the same number of soliton periods-leads to sub-shot-noise photon number fluctuations. Clearly the classical nonlinear input-output relation is not enough to predict the quantum noise properties of the output pulses.","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126414495","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}
{"title":"\"Hysteresis Loop\" In Parameter-variable Phase Space Of A Bimode Co, Laser With A Saturable Absorber","authors":"T. Shlmizu, K. Tanii, T. Tohei, M. Tachikawa","doi":"10.1109/CLEOPR.1997.610723","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610723","url":null,"abstract":"In this paper we discuss the strange characteristics of a bimode COz laser with a saturable absorber (a bimode CO,-LSA), which is described by a set of 8 nonlinear rate equations and 15 parameters. The variables are the photon densities in two modes, population densities of the upper and lower laser levels in two regions, and population differences of absorption levels. The parameters are the induced emission coefficients, absorption coefficient, photon loss rates, coupling constants between the two modes, and so on. The two modes spatially overlap with each other and are driven with the same parameter set. We calculate numerically the behaviors of the laser on the basis of the extended 3-2 level model' which has been successfully applied to describe the bimode CO,-LSA. The values of all parameters besides the pumping rates are fixed to the reasonable ones which can be realized in this experiment. Figure l(a)-(e) in five frames show the time sequences of the pulsations in \"stable\" states after some hundreds of pulses at several pumping rates. We have found that the behaviors of pulsations are critically dependent on the initial values of the variables. We take instantaneous values of the variables as the initial val-","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"23 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128184680","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}
{"title":"Spatial-phase CDMA System With Fourier Holography Switches For Optical Interconnections","authors":"K. Takasago, M. Takekawa, A. Shirakawa, F. Kannar","doi":"10.1109/CLEOPR.1997.610941","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610941","url":null,"abstract":"","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132019779","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}
V. Tarasenko, M. Lomaev, V. M. Orlovskii, A. N. Panchenko, V. Skakun, E. Sosnin, A. V. Fedenev
{"title":"Ultraviolet And Infrared Lasers With High Efficiency","authors":"V. Tarasenko, M. Lomaev, V. M. Orlovskii, A. N. Panchenko, V. Skakun, E. Sosnin, A. V. Fedenev","doi":"10.1109/CLEOPR.1997.610675","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610675","url":null,"abstract":"The results of the experimental study of UV and IR lasers pumped by various methods are presented. The accelerators with radially converging or planar e-beams pumping gas mixtures at pressures up to 3 atm and self-sustained discharges were used. The highest laser radiation energies in the UV up to 2 kJ have been obtained at (lambda) equals 308 nm. Output of 100 J at (lambda) equals 1.73 micrometer in Ar-Xe mixture and 50 J at (lambda) equals 2.03 micrometer in He-Ar-Xe mixture was obtained from the e-beam laser with active volume of 600 l. Output energies of 110 J at (lambda) equals 308 nm and 90 J at (lambda) approximately 250 nm, respectively, were achieved in compact high-power e-beam laser with chamber of 20 cm in diameter and 30 l active volume. This e-beam geometry was shown to be very promising for excitation of non-chain HF- laser media. HF-laser efficiency with respect to deposited energy as high as approximately 10% and energy up to 200 J at (lambda) approximately 2.8 micrometer were demonstrated. Amplification of XeCl-laser beam from master oscillators and amplifiers under conditions of strong amplified spontaneous emission is considered. Investigations of CO2 laser excited by e-beam controlled discharge and e-beam ignited discharge were performed. The highest laser output in the IR of 3 kJ have been obtained at (lambda) equals 10.6 micrometer.","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132076445","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}
{"title":"Correlation Between Pump And Stokes Waves In A Broadband Raman Laser","authors":"C. Go, H. Moon, Joon-sung Chang, Jai-Hyung Lee","doi":"10.1109/CLEOPR.1997.610515","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610515","url":null,"abstract":"","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132489847","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}
Y. Tong, Ziping Jiang, Z.J. Wang, W. Wang, H. Tsang
{"title":"Hybrid Mode-locking Of A Distributed Feedback Laser Diode Integrated With A Tapered Stripe Amplifier","authors":"Y. Tong, Ziping Jiang, Z.J. Wang, W. Wang, H. Tsang","doi":"10.1109/CLEOPR.1997.610732","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610732","url":null,"abstract":"","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"225 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132504716","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}
{"title":"Optical Properties Of Nd/sup 3+/ And Yb/sup 3+/ Complexes For Liquid Laser Media","authors":"J. Kim, N. Nakasima, S. Yanagida, T. Yamanaka","doi":"10.1109/CLEOPR.1997.610663","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610663","url":null,"abstract":"4F3/2-2411312. The peak wavelength was 1054 nm, and the effective band width was 31 nm.',2 The luminescence lifetime of the *FZl2 upper energy level was about 65 JLS, the calculated quantum yield was about 5% and the stimulated emission cross section was 3.89 X lo-'' cm2 at 1054 nm using the Judd-Ofelt theory. On the other hand, the ytterbium complexes were chosen as the subject of the research topic for a new type of liquid laser system. The ytterbium doped media have luminescence lifetimes four times the values found for the same Nd-doped materials and the quantum defect is much smaller than that of the neodymium\" The absorption and luminescence spectrum of the ytterbium complex in organic solvent (DMSO) appeared in Fig. 3 where it was measured under the same conditions of the neodymium complexes. The ytterbium complex was observed luminescence of 4F5/Z--4F,,2 transition at 985 nm and the effective band width was 65 nm. It becomes clear that the luminescence intensity of the ytterbium complex was strong comparing with the neodymium complex under the same conditions, and also the quantum yield was measured to be about 50%.","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130140841","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}
{"title":"5 TW Ti:sapphire Laser Chirped-pulse Amplification System","authors":"H. Takada, M. Kakehata, K. Miyazaki, K. Torizuka","doi":"10.1109/CLEOPR.1997.610337","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610337","url":null,"abstract":"","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130161175","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}
{"title":"Anisotropy Of In-plane Masses And Optical Transitions In Strained [110] Quantum Wells","authors":"L. Peng","doi":"10.1109/CLEOPR.1997.610690","DOIUrl":"https://doi.org/10.1109/CLEOPR.1997.610690","url":null,"abstract":"' ' ' \" ' ' \" ' \" ' ' ' ' ' \" where, N N-th step from P,, = 0.1 mW to P,, = 3 mW, IjN: Operation current at N-th step, and P,: Optical power at N-th step. The measured results shown in Fig. 2 clearly demonstrate that the kink ratio is decreased by the reduction of bonding force. Secondly, we have observed that both the threshold and the operation current can be reduced considerably by the reduction of bonding force during the assembly. In summary, we have shown that the stress to the active layer should be controlled carefully during the assembly process by careful choice of bonding force to avoid unnecessary degradation of laser diode characteristics, which is particularly so in QW laser diodes. 1. Won-Jin Choi, Chi-Ho Chang, WonTaek Choi, Seung-Hee Kim, JongSeok Kim, Shi-Jong Leem, TaeKyung Yoo, \"Hydrogen Effect on 670 nm AlGaInP Visible Laser during High Temperature Operation,\" IEEE J. Selected Topics in Quantum Electron. 1(2), 717 (1995).","PeriodicalId":260495,"journal":{"name":"Technical Digest CLEO/Pacific Rim '97 Pacific Rim Conference on Lasers and Electro-Optics","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131564260","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}