Q-switched Nd:YAG-OPO based differential absorption LIDAR for the detection of tropospheric methane in the mid-infrared region (3.0-4.5 μm) is presented. Measurements depict urban methane measurements that exhibited diurnal fluctuations in concentration levels.
{"title":"Optical Parametric Oscillator Based Differential Absorption Lidar for Tropospheric Methane Concentration Measurement","authors":"Taieb Gasmi Cherifi","doi":"10.1109/PN.2019.8819542","DOIUrl":"https://doi.org/10.1109/PN.2019.8819542","url":null,"abstract":"Q-switched Nd:YAG-OPO based differential absorption LIDAR for the detection of tropospheric methane in the mid-infrared region (3.0-4.5 μm) is presented. Measurements depict urban methane measurements that exhibited diurnal fluctuations in concentration levels.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128899015","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}
Clément Frayssinous, V. Fortin, J. Bérubé, R. Vallée, A. Fraser
We present the first comprehensive experimental investigation on laser ablation using a novel technology of dual-pumped fiber laser emitting in the CH stretching region of three common polymers. A rigorous comparison of the relevant parameters of the interaction for our compact fiber laser and a CO2 laser reveals the strong impact of the wavelength of irradiation on the process. The development of such laser materials processing can improve existing and allow innovative applications.
{"title":"Advantages of fiber laser ablation of polymers in the CH stretching region","authors":"Clément Frayssinous, V. Fortin, J. Bérubé, R. Vallée, A. Fraser","doi":"10.1109/PN.2019.8819527","DOIUrl":"https://doi.org/10.1109/PN.2019.8819527","url":null,"abstract":"We present the first comprehensive experimental investigation on laser ablation using a novel technology of dual-pumped fiber laser emitting in the CH stretching region of three common polymers. A rigorous comparison of the relevant parameters of the interaction for our compact fiber laser and a CO2 laser reveals the strong impact of the wavelength of irradiation on the process. The development of such laser materials processing can improve existing and allow innovative applications.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130267787","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}
Katherine Purvis, Kennedy Brittain, Ariana Joseph, R. Cisek, D. Tokarz
The third-order nonlinear optical properties of a number of photosynthetic pigments including phycobilins and flavonoids as well as light-harvesting pigment-protein complexes such as phycobiliproteins were investigated because these pigments and light-harvesting pigment-protein complexes are promising candidates for applications in high-speed optical switching, optical modulators, optical computing, and as contrast agents in nonlinear optical microscopy. The third-order nonlinear optical susceptibility values of these pigments and pigment-protein complexes were obtained at 1030 nm wavelength using the third harmonic generation ratio technique, combined with index of refraction measurements. The third-order nonlinear optical susceptibility values of flavonoids, phycobilins and phycobiliproteins decreased with increasing concentration, while the magnitudes of the third-order nonlinear optical susceptibility values with concentration of phycobilins and phycobiliproteins was much larger than flavonoids.
{"title":"Photosynthetic Pigments and Protein Complexes as Dyes For Third Harmonic Generation Microscopy","authors":"Katherine Purvis, Kennedy Brittain, Ariana Joseph, R. Cisek, D. Tokarz","doi":"10.1109/PN.2019.8819566","DOIUrl":"https://doi.org/10.1109/PN.2019.8819566","url":null,"abstract":"The third-order nonlinear optical properties of a number of photosynthetic pigments including phycobilins and flavonoids as well as light-harvesting pigment-protein complexes such as phycobiliproteins were investigated because these pigments and light-harvesting pigment-protein complexes are promising candidates for applications in high-speed optical switching, optical modulators, optical computing, and as contrast agents in nonlinear optical microscopy. The third-order nonlinear optical susceptibility values of these pigments and pigment-protein complexes were obtained at 1030 nm wavelength using the third harmonic generation ratio technique, combined with index of refraction measurements. The third-order nonlinear optical susceptibility values of flavonoids, phycobilins and phycobiliproteins decreased with increasing concentration, while the magnitudes of the third-order nonlinear optical susceptibility values with concentration of phycobilins and phycobiliproteins was much larger than flavonoids.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116204197","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}
S. Dedyulin, S. Janz, D. Xu, A. Todd, M. Vachon, S. Wang, J. Weber
We present the design and experimental results for a silicon photonic thermometer module for secondary and working thermometry standards. The chip is mechanically robust and insensitive to contamination. Using surface coupling gratings the chip temperature can be monitored remotely using free space beams, thereby eliminating temperature hysteresis effects arising from conventional optical assembly methods and materials.
{"title":"Silicon Photonic Chips Using Remote Interrogation for Secondary and Working Standards in Thermometry","authors":"S. Dedyulin, S. Janz, D. Xu, A. Todd, M. Vachon, S. Wang, J. Weber","doi":"10.1109/PN.2019.8819562","DOIUrl":"https://doi.org/10.1109/PN.2019.8819562","url":null,"abstract":"We present the design and experimental results for a silicon photonic thermometer module for secondary and working thermometry standards. The chip is mechanically robust and insensitive to contamination. Using surface coupling gratings the chip temperature can be monitored remotely using free space beams, thereby eliminating temperature hysteresis effects arising from conventional optical assembly methods and materials.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126829844","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}
Vanadium Dioxide (VO2) has a metal-to-insulator phase transition (MIT) near 68°C. Drastic changes in electrical and optical properties of VO2 are observed at this temperature. We have found that thin films of VO2 have epsilon-near-zero (ENZ) regions in the near infrared that can be thermally tuned over nearly 1000 nm by exploiting this phase transition. They may also show potential for enhanced Kerr response in this ENZ region.
{"title":"Tuning the Dielectric Constant Zero Crossing of Vanadium Dioxide (VO2)","authors":"Ryan Hogan, J. Upham, M. Alam, A. Haché, R. Boyd","doi":"10.1109/pn.2019.8819555","DOIUrl":"https://doi.org/10.1109/pn.2019.8819555","url":null,"abstract":"Vanadium Dioxide (VO2) has a metal-to-insulator phase transition (MIT) near 68°C. Drastic changes in electrical and optical properties of VO2 are observed at this temperature. We have found that thin films of VO2 have epsilon-near-zero (ENZ) regions in the near infrared that can be thermally tuned over nearly 1000 nm by exploiting this phase transition. They may also show potential for enhanced Kerr response in this ENZ region.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128077832","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}
We propose and experimentally demonstrate a universal method for dynamic Fourier analysis of continuous broadband high-speed non-stationary fields by mapping the full spectrogram of the incoming waveform onto the temporal domain. The full spectrogram of a GHz-bandwidth microwave signal, sampled by an optical field, is directly captured in a real-time scope, at record speed.
{"title":"On-the-fly Dynamic Fourier Transform Analysis of Non-stationary Microwave Signals","authors":"S. R. Konatham, R. Maram, J. Azaña","doi":"10.1109/PN.2019.8819564","DOIUrl":"https://doi.org/10.1109/PN.2019.8819564","url":null,"abstract":"We propose and experimentally demonstrate a universal method for dynamic Fourier analysis of continuous broadband high-speed non-stationary fields by mapping the full spectrogram of the incoming waveform onto the temporal domain. The full spectrogram of a GHz-bandwidth microwave signal, sampled by an optical field, is directly captured in a real-time scope, at record speed.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127317061","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}
We present a configurable silicon modulator for pure phase modulation, implemented as a Mach-Zehnder interferometer with a PN carrier depletion modulator (CDM) and tunable couplers. The spurious intensity modulation introduced by the CDM is compensated by tuning the splitting ratios of the couplers and the phase delay between the arms. In this report, we present the simulation results of this device.
{"title":"Configurable Modulator for Pure Phase Modulation","authors":"H. Deng, W. Bogaerts","doi":"10.1109/PN.2019.8819529","DOIUrl":"https://doi.org/10.1109/PN.2019.8819529","url":null,"abstract":"We present a configurable silicon modulator for pure phase modulation, implemented as a Mach-Zehnder interferometer with a PN carrier depletion modulator (CDM) and tunable couplers. The spurious intensity modulation introduced by the CDM is compensated by tuning the splitting ratios of the couplers and the phase delay between the arms. In this report, we present the simulation results of this device.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130848964","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}
In this work we theoretically investigate the time evolution of a squeezed thermal state inside a side-coupled ring resonator. We optimize the input pump pulse duration and cross- coupling strength to find the maximally quadrature squeezed thermal state. Keywords—quadrature squeezed thermal state; ring resonator
{"title":"Squeezed Thermal States in a Ring Resonator","authors":"Colin Vendromin, M. Dignam","doi":"10.1109/PN.2019.8819589","DOIUrl":"https://doi.org/10.1109/PN.2019.8819589","url":null,"abstract":"In this work we theoretically investigate the time evolution of a squeezed thermal state inside a side-coupled ring resonator. We optimize the input pump pulse duration and cross- coupling strength to find the maximally quadrature squeezed thermal state. Keywords—quadrature squeezed thermal state; ring resonator","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124397185","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}
I will review the recent progress in the generation of sub-100-fs light pulses by passive mode-locking of bulk Tm and Ho solid-state lasers operating near 2-micron.
我将回顾在2微米附近工作的块状Tm和Ho固体激光器的无源锁模产生亚100-fs光脉冲的最新进展。
{"title":"Progress in Passively Mode-Locked 2-Micron Tm and Ho Bulk Solid-State Lasers","authors":"V. Petrov","doi":"10.1109/PN.2019.8819585","DOIUrl":"https://doi.org/10.1109/PN.2019.8819585","url":null,"abstract":"I will review the recent progress in the generation of sub-100-fs light pulses by passive mode-locking of bulk Tm and Ho solid-state lasers operating near 2-micron.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"263 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121113223","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}
Mustafa Hammood, Ajay Mistry, Han Yun, Minglei Ma, L. Chrostowski, N. Jaeger
We demonstrate an optical add-drop multiplexer on the silicon-on-insulator platform with a 3 dB bandwidth of 6.3 nm, an ultra-high adjacent channel isolation of 58 dB, an insertion loss of 0.8 dB, and a footprint of only 1882 μm2.
{"title":"Compact, folded, high-performance, silicon photonic, optical add-drop multiplexer","authors":"Mustafa Hammood, Ajay Mistry, Han Yun, Minglei Ma, L. Chrostowski, N. Jaeger","doi":"10.1109/PN.2019.8936494","DOIUrl":"https://doi.org/10.1109/PN.2019.8936494","url":null,"abstract":"We demonstrate an optical add-drop multiplexer on the silicon-on-insulator platform with a 3 dB bandwidth of 6.3 nm, an ultra-high adjacent channel isolation of 58 dB, an insertion loss of 0.8 dB, and a footprint of only 1882 μm2.","PeriodicalId":448071,"journal":{"name":"2019 Photonics North (PN)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124959658","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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