Todd A. Pitts, Ting S. Luk, J. Gruetzner, T. R. Nelson, Armon McPherson, S. M. Cameron, Aaron C. Bernstein
Numerical simulations of self-focusing laser pulses in atmosphere obtained via the slowly evolving wave approximation are compared with experimental results. The model includes group velocity and third order dispersion as well as instantaneous Kerr and delayed Raman nonlinearities. The magnitude of n/sub 2/ is inferred.
{"title":"Propagation of self-focusing laser pulses in atmosphere: experiment versus numerical simulation","authors":"Todd A. Pitts, Ting S. Luk, J. Gruetzner, T. R. Nelson, Armon McPherson, S. M. Cameron, Aaron C. Bernstein","doi":"10.1364/JOSAB.21.002008","DOIUrl":"https://doi.org/10.1364/JOSAB.21.002008","url":null,"abstract":"Numerical simulations of self-focusing laser pulses in atmosphere obtained via the slowly evolving wave approximation are compared with experimental results. The model includes group velocity and third order dispersion as well as instantaneous Kerr and delayed Raman nonlinearities. The magnitude of n/sub 2/ is inferred.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"500 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121263831","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}
M. Asaro, Z. Chen, O. Ostroverkhova, W. Moerner, M. He, R. Twieg, G. Salamo
We report the first observation of optical spatial solitons in an organic photorefractive monolithic glass. Self-trapping of light as well as optically induced focusing-to-defocusing switching was observed, owning to the orientationally enhanced photorefractive nonlinearity.
{"title":"Self-trapping of light in a photorefractive organic glass","authors":"M. Asaro, Z. Chen, O. Ostroverkhova, W. Moerner, M. He, R. Twieg, G. Salamo","doi":"10.1364/PEMD.2003.425","DOIUrl":"https://doi.org/10.1364/PEMD.2003.425","url":null,"abstract":"We report the first observation of optical spatial solitons in an organic photorefractive monolithic glass. Self-trapping of light as well as optically induced focusing-to-defocusing switching was observed, owning to the orientationally enhanced photorefractive nonlinearity.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132994047","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}
A spectroscopic study of Eu-doped GaN grown on silicon by solid state molecular beam epitaxy is presented. The temperature dependence of the continuous-wave and time-resolved luminescence properties reveals details about the energy transfer rates and thermal activation energies.
{"title":"Temperature dependent visible photolumineseence of Eu-doped GaN on Silicon","authors":"Chang-won Lee, H. Everitt, J.M. Javada, A. Stecki","doi":"10.1364/FIO.2003.WFF4","DOIUrl":"https://doi.org/10.1364/FIO.2003.WFF4","url":null,"abstract":"A spectroscopic study of Eu-doped GaN grown on silicon by solid state molecular beam epitaxy is presented. The temperature dependence of the continuous-wave and time-resolved luminescence properties reveals details about the energy transfer rates and thermal activation energies.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129394789","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 : 2003-06-01DOI: 10.1109/CLEO.2003.1298509
L. Laversenne, A. Crunteanu, P. Hoffmann, M. Pollnau, P. Moretti, J. Mugnier
1.1-MeV proton-implanted sapphire waveguides are investigated for the first time. Optical measurements show that the planar waveguides support low-order transverse-mode propagation with good guiding properties without the need to anneal the samples.
{"title":"Sapphire planar waveguides fabricated by H/sup +/ ion beam implantation","authors":"L. Laversenne, A. Crunteanu, P. Hoffmann, M. Pollnau, P. Moretti, J. Mugnier","doi":"10.1109/CLEO.2003.1298509","DOIUrl":"https://doi.org/10.1109/CLEO.2003.1298509","url":null,"abstract":"1.1-MeV proton-implanted sapphire waveguides are investigated for the first time. Optical measurements show that the planar waveguides support low-order transverse-mode propagation with good guiding properties without the need to anneal the samples.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127350732","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}
A λ2-size spot of an aluminum target excited at >1018W/cm2 is found to expand radially and vertically at nearly 108cm/s by imaging radial expansion with <1µm resolution and inferring vertical expansion from time-resolved resonance absorption.
{"title":"Femtosecond microscopy of an expanding 3 -size aluminum plasma excited at relativistic intensity","authors":"B. Bowes, M. Downer","doi":"10.1364/FIO.2003.MV2","DOIUrl":"https://doi.org/10.1364/FIO.2003.MV2","url":null,"abstract":"A λ2-size spot of an aluminum target excited at >1018W/cm2 is found to expand radially and vertically at nearly 108cm/s by imaging radial expansion with <1µm resolution and inferring vertical expansion from time-resolved resonance absorption.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134457483","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 : 2003-06-01DOI: 10.1109/CLEO.2003.1298065
R. White, Yabai He, B. Orr, M. Kono, K. Baldwin
Measurements of frequency chirp in a ns-pulsed, single-longitudinal-mode, injectionseeded optical parametric oscillator identify factors influencing the magnitude and pulse-to-pulse stability of this chirp. Methods to minimize chirp are identified. 02003 Optical Society of America OCIS codes: (190.4360) Nonlinear optics, devices; (190.4970) Parametric oscillators and amplifiers Narrowband, nanosecond-pulsed tunable coherent radiation for hgh-resolution spectroscopy can be generated by injection seeding an optical parametric oscillator (OPO) [ 11. A coherent light source with well-characterized optical phase and good pulse-to-pulse stability facilitates such applications [2,3]. We use a heterodyne technique to measure the optical phase characteristics of a ns-pulsed periodically poled KTiOP04 (PPKTP) OPO that is injectionseeded by a cw tunable diode laser (TDL), emulating previous work on pulse-amplified, single-mode cw lasers [2.3]. We investigate how frequency clllrp in a TDL-seeded PPKTP OPO is affected by varying the experimental con&tions. Figure 1 shows our intensity-dip control design [4,5] that allows continuously tunable single-longitudinal-mode (SLM) operation of the TDL-seeded pulsed PPKTP OPO with a signal tuning m g e of 834 85 1 nm. The PPKTP ring-cavity OPO is pumped by either of two frequency-doubled SLM Nd:YAG lases with differing FWHM pulse durations, -8 11s and -30 ns. A portion of the seed beam is split off before the OPO and frequency-shifted by -730MHz via an acousto-optic modulator (AOM). This frequency-shfted cw light is combined with pulsed OPO signal radiation to produce a beat signal on a 1-GHz photodiode. Photodetector + BeatSignal Electronics 1 I I 1 I I I I I 1 Chopper BS3n .
通过对ns脉冲单纵模注入种子光参量振荡器频率啁啾的测量，确定了影响啁啾幅度和脉间稳定性的因素。确定了最小化啁啾的方法。02003美国光学学会OCIS编码:(190.4360)非线性光学，器件;[190.4970]参量振荡器和放大器通过注入注入光参量振荡器(OPO)可以产生用于高分辨率光谱的窄带纳秒脉冲可调谐相干辐射[11]。具有良好特征的光相位和良好的脉冲-脉冲稳定性的相干光源有助于此类应用[2,3]。我们使用外差技术测量了由连续波可调二极管激光器(TDL)注入种子的ns脉冲周期性极化KTiOP04 (PPKTP) OPO的光学相位特性，模拟了先前对脉冲放大、单模连续波激光器的研究[2.3]。我们研究了不同实验条件对tdl种子PPKTP OPO中频率clllp的影响。图1显示了我们的强度-倾角控制设计[4,5]，该设计允许tdl种子脉冲PPKTP OPO的连续可调谐单纵向模式(SLM)操作，信号调谐波长为834 85 1nm。PPKTP环腔OPO由两种倍频SLM Nd:YAG激光器中的任意一种抽运，这些激光器具有不同的FWHM脉冲持续时间，分别为-8 11s和-30 ns。一部分种子光束在OPO之前被分离，并通过声光调制器(AOM)进行-730MHz的频移。这种频移的连续波光与脉冲OPO信号辐射相结合，在1 ghz光电二极管上产生拍信号。光电探测器+ BeatSignal Electronics 1 I I 1 I I I I 1 Chopper BS3n。
{"title":"Controlling frequency chirp in a ns-pulsed, single-longitudinal-mode, injection-seeded PPKTP optical parametric oscillator","authors":"R. White, Yabai He, B. Orr, M. Kono, K. Baldwin","doi":"10.1109/CLEO.2003.1298065","DOIUrl":"https://doi.org/10.1109/CLEO.2003.1298065","url":null,"abstract":"Measurements of frequency chirp in a ns-pulsed, single-longitudinal-mode, injectionseeded optical parametric oscillator identify factors influencing the magnitude and pulse-to-pulse stability of this chirp. Methods to minimize chirp are identified. 02003 Optical Society of America OCIS codes: (190.4360) Nonlinear optics, devices; (190.4970) Parametric oscillators and amplifiers Narrowband, nanosecond-pulsed tunable coherent radiation for hgh-resolution spectroscopy can be generated by injection seeding an optical parametric oscillator (OPO) [ 11. A coherent light source with well-characterized optical phase and good pulse-to-pulse stability facilitates such applications [2,3]. We use a heterodyne technique to measure the optical phase characteristics of a ns-pulsed periodically poled KTiOP04 (PPKTP) OPO that is injectionseeded by a cw tunable diode laser (TDL), emulating previous work on pulse-amplified, single-mode cw lasers [2.3]. We investigate how frequency clllrp in a TDL-seeded PPKTP OPO is affected by varying the experimental con&tions. Figure 1 shows our intensity-dip control design [4,5] that allows continuously tunable single-longitudinal-mode (SLM) operation of the TDL-seeded pulsed PPKTP OPO with a signal tuning m g e of 834 85 1 nm. The PPKTP ring-cavity OPO is pumped by either of two frequency-doubled SLM Nd:YAG lases with differing FWHM pulse durations, -8 11s and -30 ns. A portion of the seed beam is split off before the OPO and frequency-shifted by -730MHz via an acousto-optic modulator (AOM). This frequency-shfted cw light is combined with pulsed OPO signal radiation to produce a beat signal on a 1-GHz photodiode. Photodetector + BeatSignal Electronics 1 I I 1 I I I I I 1 Chopper BS3n .","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129284624","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 : 2003-06-01DOI: 10.1109/CLEO.2003.1298364
B. Stormont, I. Cormack, A. Kemp, M. Mazilu, C. Brown, W. Sibbett, D. Burns
We demonstrate self-starting, modelocked, four-element cavity Ti: sapphire lasers that operate at 1-2GHz repetition rates. These lasers produce 260-fs pulses and have modelocking thresholds -4OOmW.
{"title":"High repetition rate fcmtosecond ti: sapphire lasers based on four-element cavities","authors":"B. Stormont, I. Cormack, A. Kemp, M. Mazilu, C. Brown, W. Sibbett, D. Burns","doi":"10.1109/CLEO.2003.1298364","DOIUrl":"https://doi.org/10.1109/CLEO.2003.1298364","url":null,"abstract":"We demonstrate self-starting, modelocked, four-element cavity Ti: sapphire lasers that operate at 1-2GHz repetition rates. These lasers produce 260-fs pulses and have modelocking thresholds -4OOmW.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134490681","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}
F. Seguineau, D. Rouvillain, H. Choumane, G. Aubin, J. Oudar, P. Brindel, B. Lavigne, O. Leclere
A semiconductor saturable absorber-based optical 2R regenerator is implemented in a 20 Gbit/s WDM-emulated dispersion-managed loop transmission with 'standard' 50% RZ signals. When reducing the channel spacing from 200 down to 50 GHz, the optical 2R regenerator is seen to ensure Q-factors at 9000 km distance of 14.5 and 11.2 dB, respectively.
{"title":"Regeneration capabilities of passive saturable absorber-based optical 2R in 20Gbit/s RZ DWDM long-haul transmissions","authors":"F. Seguineau, D. Rouvillain, H. Choumane, G. Aubin, J. Oudar, P. Brindel, B. Lavigne, O. Leclere","doi":"10.1049/EL:20030549","DOIUrl":"https://doi.org/10.1049/EL:20030549","url":null,"abstract":"A semiconductor saturable absorber-based optical 2R regenerator is implemented in a 20 Gbit/s WDM-emulated dispersion-managed loop transmission with 'standard' 50% RZ signals. When reducing the channel spacing from 200 down to 50 GHz, the optical 2R regenerator is seen to ensure Q-factors at 9000 km distance of 14.5 and 11.2 dB, respectively.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117266286","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 : 2003-05-01DOI: 10.1016/S0030-4018(03)01342-7
T. Hasama, J. Jiang
{"title":"Synchronously-pumped femtosecond optical parametric oscillator based on an improved pumping concept","authors":"T. Hasama, J. Jiang","doi":"10.1016/S0030-4018(03)01342-7","DOIUrl":"https://doi.org/10.1016/S0030-4018(03)01342-7","url":null,"abstract":"","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125278573","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}
Designs of low pump power optical amplifiers, based on photonic crystal fibres are presented. The potential of these fibre amplifiers is investigated, and it is demonstrated that such amplifiers may deliver gains of more than 15 dB at 1550 nm with less than 1 mW of optical pump power. We focus on the design of erbium-doped photonic crystal fibre amplifiers operated at very low pump powers. We achieve this by using PCFs with large air holes and thereby large index contrasts. With such high index contrast fibres, we may obtain very small mode field diameters.
{"title":"Low pump power photonic crystal fiber amplifiers","authors":"K. Hougaard, J. Broeng, A. Bjarklev","doi":"10.1049/EL:20030385","DOIUrl":"https://doi.org/10.1049/EL:20030385","url":null,"abstract":"Designs of low pump power optical amplifiers, based on photonic crystal fibres are presented. The potential of these fibre amplifiers is investigated, and it is demonstrated that such amplifiers may deliver gains of more than 15 dB at 1550 nm with less than 1 mW of optical pump power. We focus on the design of erbium-doped photonic crystal fibre amplifiers operated at very low pump powers. We achieve this by using PCFs with large air holes and thereby large index contrasts. With such high index contrast fibres, we may obtain very small mode field diameters.","PeriodicalId":432096,"journal":{"name":"Conference on Lasers and Electro-Optics, 2003. CLEO '03.","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128348616","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}
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