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Slow dynamics and multipair self phase-locked oscillation in the divide-by-3 cw optical parametric oscillator 除3连续波光学参量振荡器的慢动力学和多对自锁相振荡
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567279
J. Zondy, D. Kolker, P. Gorelik, F. Wong
{"title":"Slow dynamics and multipair self phase-locked oscillation in the divide-by-3 cw optical parametric oscillator","authors":"J. Zondy, D. Kolker, P. Gorelik, F. Wong","doi":"10.1109/EQEC.2005.1567279","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567279","url":null,"abstract":"This study investigates the slow dynamics and multipair self phase-locked oscillation in the divide-by-3 continuous-wave optical parametric oscillator (OPO). This work also reports on a different regime of operation, when the SLOPO is slightly frequency detuned from exact by-3 division by changing the PPLN phase-matching temperature. When /spl delta/ is equal or multiple of the cavity free spectral range /spl Delta//spl nu//sub s/, cascade injection-locking of many resonant mode pairs (up to 5-6) has been observed by spectral analysis of the SPLOPO output, as a premise to a cw mode-locked OPO operation. Such a simultaneous multipair stable oscillation is precluded in a conventional OPO due to gain saturation. The maximum number of phase-locked pairs is limited by the pumping power. The potential of the device as a generator of multipartite quantum entangled pairs, as well as in 3-phase-encoded spiral wave transverse pattern formation are discussed.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131013161","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
Generation and tomographic analysis of novel quantum light states 新型量子光态的生成与层析分析
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567416
A. Zavatta, S. Viciani, V. Parigi, M. Bellini
{"title":"Generation and tomographic analysis of novel quantum light states","authors":"A. Zavatta, S. Viciani, V. Parigi, M. Bellini","doi":"10.1109/EQEC.2005.1567416","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567416","url":null,"abstract":"Conditional preparation in the process of parametric down-conversion and an ultrafast time-domain homodyne tomography technique have been used for the generation and the complete analysis of novel quantum states of light.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131049581","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
Pulsewidth and stability properties of external-cavity mode-locked semiconductor lasers: Simulations and experiments 外腔锁模半导体激光器的脉宽与稳定性:模拟与实验
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567180
J. Mulet, M. Kroh, J. Mirk
{"title":"Pulsewidth and stability properties of external-cavity mode-locked semiconductor lasers: Simulations and experiments","authors":"J. Mulet, M. Kroh, J. Mirk","doi":"10.1109/EQEC.2005.1567180","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567180","url":null,"abstract":"High-quality pulses of around 1 ps are experimentally obtained from an external-cavity mode-locked semiconductor laser. The study demonstrates good quantitative agreement between experimental and numerical results and the theory indicates that further pulse shortening requires limiting the amount of ultrafast gain saturation due to carrier heating dynamics.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"152 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131226485","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
Observation of radio-frequency induced optical transparency in exited atoms 发射原子中射频诱导光学透明度的观察
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567239
R. Akhmedzhanov, L. Gushchin, A. Litvak, Y. Radeonychev, I. Zelensky, R. Kolesov, E. Kuznetsova
{"title":"Observation of radio-frequency induced optical transparency in exited atoms","authors":"R. Akhmedzhanov, L. Gushchin, A. Litvak, Y. Radeonychev, I. Zelensky, R. Kolesov, E. Kuznetsova","doi":"10.1109/EQEC.2005.1567239","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567239","url":null,"abstract":"This paper experimentally studies a four-level atomic system within 607.4 nm transition 2p/sup 5/3s/sup 3/P/sub 1/ (J=1) 2p/sup 5/s3p/sup 3/P0 (J=0) of Ne. Combined action of both rf and optical fields lead to the coherence population trapping that was detected as reduction of absorption of the probe field. Stimulated resonant Raman scattering of the optical field on Zeeman coherence and the rf field on the optically-induced coherence is observed as generation of Stokes and anti-Stokes optical fields at the adjacent transition frequencies, which are detected by a heterodyne technique.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132784699","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
Length scales and polarization properties of transverse patterns in broad-area vertical-cavity surface-emitting lasers 广域垂直腔面发射激光器横向图样的长度尺度和偏振特性
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567321
M. Schulz-Ruhtenbery, T. Ackemann, K. Huang, I. Babushkin, N. Loiko
{"title":"Length scales and polarization properties of transverse patterns in broad-area vertical-cavity surface-emitting lasers","authors":"M. Schulz-Ruhtenbery, T. Ackemann, K. Huang, I. Babushkin, N. Loiko","doi":"10.1109/EQEC.2005.1567321","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567321","url":null,"abstract":"This work studies the patterns emitted by broad-area VCSELs with a square aperture of 40 /spl mu/ by 40 /spl mu/. The devices are oxide-confined top-emitters lasing at around 780 nm. By controlling the device temperature the above mentioned detuning can be changed and thus the length scales of the patterns. For decreasing temperatures the divergence angle of the emission (the transverse wave number) increases and fewer modes are selected resulting in a less complex pattern. This paper studies these relationships quantitatively and considers how to extract the value of the detuning experimentally. In the theory, phase lag in the spacer layer as well as the one in the Bragg reflector is taken into account. Additionally, this study looks into the polarization properties of the emission.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132820503","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
Remote element tracing of trans-uranium plumes using an interactive UV laser DIAL coupled with a phoswich detector 使用与光电探测器相结合的交互式紫外激光DIAL对反铀羽流进行远程元素追踪
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567370
P. Parvin, G. Davoud-Abadi, Z. Zamanipoor, H. Zangeneh, B. Jaleh
{"title":"Remote element tracing of trans-uranium plumes using an interactive UV laser DIAL coupled with a phoswich detector","authors":"P. Parvin, G. Davoud-Abadi, Z. Zamanipoor, H. Zangeneh, B. Jaleh","doi":"10.1109/EQEC.2005.1567370","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567370","url":null,"abstract":"In this work, an interactive remote sensing system is suggested. It consists of two main parts; a phoswich detector to trace hard X-ray emission of these elements and a DIAL coupled with a 2/sup nd/ harmonic Nd:YAG pumped higher harmonic Ti:Sa laser. It serves as a tunable UV coherent source for rapid determination of the unknown radioactive elements within the plume as well as the corresponding concentration and the exact location.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133031215","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
Coherent phonon oscillations in ZnS excited by noncollinear optical parametric amplifier 非共线光参量放大器激发ZnS中的相干声子振荡
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567346
Y. Ohkubo, K. Yabumoto, K. Tanaka, H. Kunugita, K. Ema
{"title":"Coherent phonon oscillations in ZnS excited by noncollinear optical parametric amplifier","authors":"Y. Ohkubo, K. Yabumoto, K. Tanaka, H. Kunugita, K. Ema","doi":"10.1109/EQEC.2005.1567346","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567346","url":null,"abstract":"This study has observed coherent LO phonon oscillations in ZnS for the first time using a noncollinear optical parametric amplifier (NOPA) as a light source. Merits using NOPA are not only tunability in a visible region but also shorter pulse width than those of conventional optical parametric amplifiers. Therefore, NOPA is suitable for observing coherent phonon oscillations near the exciton resonance to investigate the interaction between phonons and excitons.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133316425","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
Intracavity wave mixing of self-generated fields in semiconductor lasers for mid/far-infrared generation 半导体激光器中/远红外自生场的腔内混频
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567251
V. Aleshkin, A. Belyanin, A. Dubinov, V. Kocharovsky, V. Kocharovsky, M. Scully
{"title":"Intracavity wave mixing of self-generated fields in semiconductor lasers for mid/far-infrared generation","authors":"V. Aleshkin, A. Belyanin, A. Dubinov, V. Kocharovsky, V. Kocharovsky, M. Scully","doi":"10.1109/EQEC.2005.1567251","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567251","url":null,"abstract":"This study analyzes various types of semiconductor nonlinearities and discuss the most promising schemes of nonlinear-mixing lasers (NML), which may be used for the sum- and difference-frequency generation in a wide infrared range. The NMLs can be implemented both in the interband lasers (diode-type lasers) and intersubband lasers (quantum cascade lasers). This paper reviews theoretical and experimental investigations in the field and discusses possible applications.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123892035","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
GAWBS noise reduction in microstructured fibers 微结构光纤的GAWBS降噪
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567494
D. Elser, A. Korn, S. Lorenz, O. Glockl, C. Marquardt, U. Andersen, G. Leuchs
{"title":"GAWBS noise reduction in microstructured fibers","authors":"D. Elser, A. Korn, S. Lorenz, O. Glockl, C. Marquardt, U. Andersen, G. Leuchs","doi":"10.1109/EQEC.2005.1567494","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567494","url":null,"abstract":"Guided acoustic wave Brillouin scattering (GAWBS) generates phase and polarization noise of light propagating in glass fibers. We experimentally demonstrate the reduction of GAWBS noise in microstructured fibers in comparison with-standard fibers.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124257891","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
A new measurement of s-wave scattering length of metastable helium atoms by photoassociative spectroscopy 用光结合光谱法测量亚稳氦原子s波散射长度
EQEC '05. European Quantum Electronics Conference, 2005. Pub Date : 2005-06-12 DOI: 10.1109/EQEC.2005.1567403
Jaewan Kim, S. Moal, M. Portier, M. Ledue, C. cohen-tannoudji, O. Dulieu
{"title":"A new measurement of s-wave scattering length of metastable helium atoms by photoassociative spectroscopy","authors":"Jaewan Kim, S. Moal, M. Portier, M. Ledue, C. cohen-tannoudji, O. Dulieu","doi":"10.1109/EQEC.2005.1567403","DOIUrl":"https://doi.org/10.1109/EQEC.2005.1567403","url":null,"abstract":"The paper reports on a new measurement method of the s-wave scattering length of metastable helium atoms by photoassociation (PA) technique. Lightshifts of the PA resonance lines are measured, which results from the coupling of a bound state in the excited state potential and the continuum of scattering states above the ground state potential. Ultracold molecules are formed by photoassociation from spin-polarized metastable helium atoms, which are trapped in a magnetic trap and cooled down to a temperature of 16 /spl mu/K by evaporative cooling technique. The PA laser is red detuned to the atomic D0 line (2/sup 3/S-2/sup 3/P/sub 0/) and scanned around the bound state levels in the purely long-range 0/sub 0//sup +/ potential to provide precise PA spectra.","PeriodicalId":179542,"journal":{"name":"EQEC '05. European Quantum Electronics Conference, 2005.","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114868402","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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