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Applications of Photonic Technology最新文献

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Quantitative diffusion model for holographic optical element recording in DuPont photopolymer 杜邦光聚合物中全息光学元件记录的定量扩散模型
Applications of Photonic Technology Pub Date : 2003-02-17 DOI: 10.1117/12.474841
V. Moreau, Y. Renotte, Y. Lion
{"title":"Quantitative diffusion model for holographic optical element recording in DuPont photopolymer","authors":"V. Moreau, Y. Renotte, Y. Lion","doi":"10.1117/12.474841","DOIUrl":"https://doi.org/10.1117/12.474841","url":null,"abstract":"We investigate the recording dynamics of Omnidex photopolymer film from DuPont. We use a reviewed version of the diffusion model proposed by Zhao and Mouroulis in order to describe the recording response, that combine photopolymerization and free monomer diffusion process. Experiments are presented that lead to the determination of material kinetic parameter. These values are introduced in a numerical model to provide quantitative simulation of gratings formation under various holographic exposures. We extend its application to the investigation of film shrinkage influence on refractive index distribution and spectral selectivity of reflection gratings. This study improves the understanding of recording process and consequently allows building more accurate holographic components in this material.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128805809","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
Photoluminescence and thermoluminescence of YAG:Ce3+,Tb3+ nanocrystalline under UV-, X- and β-irradiation YAG:Ce3+，Tb3+纳米晶在UV-， X-和β-照射下的光致发光和热致发光
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474884
Elder de la Rosa-Cruz, L. Díaz-Torres, W. Cordova-Martinez, R. Rodríguez-Rojas, M. Meneses-Nava, O. Barbosa-García
{"title":"Photoluminescence and thermoluminescence of YAG:Ce3+,Tb3+ nanocrystalline under UV-, X- and β-irradiation","authors":"Elder de la Rosa-Cruz, L. Díaz-Torres, W. Cordova-Martinez, R. Rodríguez-Rojas, M. Meneses-Nava, O. Barbosa-García","doi":"10.1117/12.474884","DOIUrl":"https://doi.org/10.1117/12.474884","url":null,"abstract":"The photoluminescence (PL) and thermoluminescence (TL) characterization of undoped and cerium and terbium doped nanocrystalline Y3Al5O12 (YAG) prepared by the sol-gel method is reported. The experimental results of the PL show the typical emission bands centered at 490, 543 and 590 nm for YAG:Tb3+ and 530 nm for YAG:Ce3+ when excited with 325 and 345 nm light, respectively. The TL signal was obtained after exposure to UV-, X- and β- irradiation. The thermoluminescence results indicate that YAG:Tb3+ sample is very sensitive to all type of irradiation used, being highly sensitive for UV-irradiation. The high efficiency of the TL and PL suggests a good potential of this material as radiation dosimeter as well as active optical windows and new generation television screen.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"15 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120930992","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: 3
An optoelectronic-VLSI chip with forward error correction to improve the reliability of parallel optical data links 一种具有前向纠错的光电- vlsi芯片，可提高并行光数据链路的可靠性
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474334
J. Faucher, M. Venditti, Emmanuelle Laprise, D. Plant
{"title":"An optoelectronic-VLSI chip with forward error correction to improve the reliability of parallel optical data links","authors":"J. Faucher, M. Venditti, Emmanuelle Laprise, D. Plant","doi":"10.1117/12.474334","DOIUrl":"https://doi.org/10.1117/12.474334","url":null,"abstract":"We study the impact of using on-chip forward error correction (FEC) in two-dimensional optical data link (2D-ODL) applications. We demonstrate that FEC can reduce the required launch power for a vertical-cavity surface-emitting laser (VCSEL), improve the reliability of 2D-ODLs, reduce on-chip power consumption and relax the requirements of the optical system. Both analytical and simulation results are presented to support our arguments.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121074247","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
InGaAsP digital optical wwitch on InP InP数字光开关
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474049
P. Barrios, P. Poole, M. Buchanan, P. Chow-Chong, I. Golub, C. Lacelle, B. Syrett, S. Abdalla, S. El-Mougy
{"title":"InGaAsP digital optical wwitch on InP","authors":"P. Barrios, P. Poole, M. Buchanan, P. Chow-Chong, I. Golub, C. Lacelle, B. Syrett, S. Abdalla, S. El-Mougy","doi":"10.1117/12.474049","DOIUrl":"https://doi.org/10.1117/12.474049","url":null,"abstract":"We demonstrate Digital Optical Switches (DOS) on InP based on carrier-injection and on the quantum-confined Stark effect (QCSE). The active waveguide core is composed of either a double-heterostructure of InGaAsP for carrier-injection or a InGaAs-InGaAsP for reverse bias operation. O-Ion implantation was employed to isolate the branches of the DOS instead of the usual isolation by etching employed elsewhere.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116013115","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
Mode-locked and noise analysis of external cavity semiconductor lasers 外腔半导体激光器的锁模和噪声分析
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474898
N. Dogru, M. S. Ozyazici
{"title":"Mode-locked and noise analysis of external cavity semiconductor lasers","authors":"N. Dogru, M. S. Ozyazici","doi":"10.1117/12.474898","DOIUrl":"https://doi.org/10.1117/12.474898","url":null,"abstract":"The noise and mode-locking phenomena of a hybrid soliton pulse source (HSPS) utilizing Gaussian apodized fiber Bragg grating is described. The HSPS is modeled by a time-domain solution of the coupled-mode equations including spontaneous emission noise. Relative intensity noise (RIN) is calculated using numerical solutions of these equations. It is found that near transform limited pulses are only generated over a limited frequency range even if system is properly mode-locked over a wide frequency range around the fundamental mode-locking frequency. If transform limited pulses are not obtained at the fundamental frequency, output pulse is not more affected from the noise at this frequency. It is also found that noise reduction is possible by using these gratings.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116382645","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
Compact frequency stabilization system for a master laser diode in optical phase locked loop using a single reference cavity for simultaneous application of optical feedback along with Pound-Drever-Hall method 紧凑型主激光二极管锁相环稳频系统，采用单参考腔同时应用光反馈和庞德-德雷弗-霍尔方法
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474046
S. Hisatake, T. Kawamoto, Y. Kurokawa, W. Sasaki
{"title":"Compact frequency stabilization system for a master laser diode in optical phase locked loop using a single reference cavity for simultaneous application of optical feedback along with Pound-Drever-Hall method","authors":"S. Hisatake, T. Kawamoto, Y. Kurokawa, W. Sasaki","doi":"10.1117/12.474046","DOIUrl":"https://doi.org/10.1117/12.474046","url":null,"abstract":"For the purpose of heterodyne optical phase-locked-loop (OPLL), a compact and efficient frequency stabilization system has been developed using a single reference cavity for simultaneous application of optical feedback along with electrical feedback. Using the identical reference cavity for each feedback technique makes the system compact. The phase margin of optical feedback loop can be maximized by stabilizing the center frequency of a laser diode (LD) to the reference cavity mode, which is identical to the optical injection locking mode based on negative electrical feedback. To improve the long-term frequency stability relative to the reference frequency, the optical feedback path length has also been controlled by using frequency error signal obtained by Pound-Drever-Hall technique. With present system, the linewidth of a 35mW visible LD has been reduced to less than 40kHz. Using this frequency stabilized LD as a master light source, heterodyne optical phase-locking has also been carried out with Littorow configuration extended-cavity slave LD in order to evaluate applicability of our system to the OPLL. The achieved minimum square root of the Allan variance of the beat frequency fluctuation was 3.8×10-13 at integration time of 10 sec. Throughout this phase-locking experiment, we could confirm that our master system maintained good time base stability, not showing any system instabilities such as mode hopping or disturbances.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122487935","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
Environmental and optical power testing of high attenuation fibers 高衰减光纤的环境和光功率测试
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474746
Huimin Zheng, C. Desrosiers, S. Ellyson, A. Henry, J. Bérubé, K. Le Foulgoc, A. Croteau, J. Lauzon
{"title":"Environmental and optical power testing of high attenuation fibers","authors":"Huimin Zheng, C. Desrosiers, S. Ellyson, A. Henry, J. Bérubé, K. Le Foulgoc, A. Croteau, J. Lauzon","doi":"10.1117/12.474746","DOIUrl":"https://doi.org/10.1117/12.474746","url":null,"abstract":"Cobalt-doped high attenuation fibers were tested in terms of temperature, humidity, and optical power. The maximum attenuation variation recorded was less than 3% for temperatures between -40 to + 65°C under uncontrolled humidity. When the humidity was controlled, the maximum attenuation variation was less than 3% under the worst case: +85°C and 85% R.H. Optical power test were carried out at 1W and 1550 nm over 12 minutes without any recorded damage to the fibers.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126665951","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
Optical Diagnostics for Classifying Stages of Dental Erythema 牙红斑分期的光学诊断方法
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474302
M. J. Davis, R. Splinter, P. Lockhart, M. Brennan, P. Fox
{"title":"Optical Diagnostics for Classifying Stages of Dental Erythema","authors":"M. J. Davis, R. Splinter, P. Lockhart, M. Brennan, P. Fox","doi":"10.1117/12.474302","DOIUrl":"https://doi.org/10.1117/12.474302","url":null,"abstract":"Periodontal disease is a term used to describe an inflammatory disease affecting the tissues surrounding and supporting the teeth. Periodontal diseases are some of the most common chronic disorders, which affect humans in all parts of the world. Treatment usually involves the removal of plaque and calculus by scaling and polishing the tooth. In some cases a surgical reduction of hyperplastic tissue, may also be required. In addition, periodontitis is a risk factor for systemic disorders such as cardiovascular disease and diabetes. Current detection methods are qualitative, inaccurate, and often do not detect the periodontal disease in its early, reversible stages. Therefore, an early detection method should be implemented identifying the relationship of periodontal disease with erythema. In order to achieve this purpose we are developing an optical erythema meter to diagnose the periodontal disease in its reversible, gingival stage. The discrimination between healthy and diseased gum tissue was made by using the reflection of two illuminating wavelengths provided by light emitting diodes operating at wavelengths that target the absorption and reflection spectra of the highlights of each particular tissue type (healthy or diseased, and what kind of disease). Three different color gels could successfully be distinguished with a statistical significance of P < 0.05.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121157506","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
Experimental assessment of 1.3 μm telecommunication systems incorporating a praseodymium doped fiber amplifier (PDFA) 掺镨光纤放大器(PDFA) 1.3 μm通信系统的实验评估
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474332
R. Schimmel, R. Jonker, P. V. van Bennekom, G. Khoe, H. de Waardt
{"title":"Experimental assessment of 1.3 μm telecommunication systems incorporating a praseodymium doped fiber amplifier (PDFA)","authors":"R. Schimmel, R. Jonker, P. V. van Bennekom, G. Khoe, H. de Waardt","doi":"10.1117/12.474332","DOIUrl":"https://doi.org/10.1117/12.474332","url":null,"abstract":"We have investigated the system performance of an experimental Praseodymium Doped Fibre Amplifier (PDFA) in an optical transmission system operating at 1.3μm. Experimental evaluation of the PDFA, based on Bit Error Rate (BER) measurements, is presented for the PDFA in copropagating and bidirectional configurations as a function of both wavelength and optical input power. The performance is analysed for both NRZ and RZ modulation format at a bitrate of 10 Gbit/s. The polarisation dependency of the PDFA is less than 0.2 dB. The results of an experimental analysis of the PDFA in an optical recirculating loop are shown for a NRZ modulated pseudo random data stream at 622 Mbit/s. A total span of approximately 2000 km is covered. Furthermore, the results of transmission experiments using the optical circulating loop at 10 Gbit/s are presented.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122156964","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: 3
Analysis of coherent crosstalk induced penalty as the dominant crosstalk in WDM-OXC WDM-OXC中相干串扰诱导惩罚的分析
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474415
Wenlu Chen, Wen-Ping Chen, Yung-Jui Chen
{"title":"Analysis of coherent crosstalk induced penalty as the dominant crosstalk in WDM-OXC","authors":"Wenlu Chen, Wen-Ping Chen, Yung-Jui Chen","doi":"10.1117/12.474415","DOIUrl":"https://doi.org/10.1117/12.474415","url":null,"abstract":"In this paper, we analyzed the system power penalty induced by the coherent crosstalk components as the dominant crosstalk channel in WDM-OXC, and present a simple expression, which can be readily calculated by popular software. We also present an expression of the power penalty when both incoherent and coherent crosstalks are presented. The simulation results show that by introducing a bit pattern mismatch method in a WDM-OXC, the extra penalty caused by the coherent crosstalk can be distinctively suppressed.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115818891","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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