Pub Date : 2021-05-31DOI: 10.1109/PN52152.2021.9597980
A. Rudenkov, V. Kisel, A. Yasukevich, N. Kuleshov, K. Hovhannesyan, A. Petrosyan
Unique spectroscopic properties of trivalent ytterbium ions in aluminium perovskite crystals (YAlO3, LuAlO3) make these crystals good candidates for picosecond and femtosecond lasers active media. The features of soliton and non-soliton mode-locking of Yb:LuAP laser were studied. Maximum average output power of 7W with pulse duration of 130fs and 28.1 % optical efficiency were obtained in soliton mode-locking regime. Average output power up to 12W with 2ps pulse duration and 38% optical efficiency obtained in nonsoliton mode-locking regime. Chirped pulse regenerative amplifier based on Yb:LuAP crystal was investigated. Pulse duration as short as 165fs with output power of 4.5W at 200kHz pulse repetition frequency were demonstrated.
{"title":"Yb:LuAP crystal for ultrafast lasers","authors":"A. Rudenkov, V. Kisel, A. Yasukevich, N. Kuleshov, K. Hovhannesyan, A. Petrosyan","doi":"10.1109/PN52152.2021.9597980","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597980","url":null,"abstract":"Unique spectroscopic properties of trivalent ytterbium ions in aluminium perovskite crystals (YAlO3, LuAlO3) make these crystals good candidates for picosecond and femtosecond lasers active media. The features of soliton and non-soliton mode-locking of Yb:LuAP laser were studied. Maximum average output power of 7W with pulse duration of 130fs and 28.1 % optical efficiency were obtained in soliton mode-locking regime. Average output power up to 12W with 2ps pulse duration and 38% optical efficiency obtained in nonsoliton mode-locking regime. Chirped pulse regenerative amplifier based on Yb:LuAP crystal was investigated. Pulse duration as short as 165fs with output power of 4.5W at 200kHz pulse repetition frequency were demonstrated.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"39 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75603687","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9598000
Meril Cyriac, M. Sheeja
Optical Transfer Function in Optical Scanning Holographic (OSH) System describes the mathematical model of hologram generation frequency domain. Here a deep learning feature vector extractor is used for combining the features of the hologram to the classifiers. The classification learning is done with the regression-based machine learning models. This system works as the pupil function predictor for the generated hologram. The training is done with the given dataset for different types of pupil functions. The extracted features of the hologram determine the model prediction for pupils used and then classification of OTF is performed. The accuracy measure for different learning algorithms has been analyzed and the Ensemble Adaboost classification algorithm shows best accuracy results for the prediction of the pupils used in OSH. This classification algorithm gives an average prediction accuracy of 97.75%
{"title":"Design of an Optical Transfer Function Classifier based on Machine Learning and Deep Learning for Optical Scanning Holography","authors":"Meril Cyriac, M. Sheeja","doi":"10.1109/PN52152.2021.9598000","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9598000","url":null,"abstract":"Optical Transfer Function in Optical Scanning Holographic (OSH) System describes the mathematical model of hologram generation frequency domain. Here a deep learning feature vector extractor is used for combining the features of the hologram to the classifiers. The classification learning is done with the regression-based machine learning models. This system works as the pupil function predictor for the generated hologram. The training is done with the given dataset for different types of pupil functions. The extracted features of the hologram determine the model prediction for pupils used and then classification of OTF is performed. The accuracy measure for different learning algorithms has been analyzed and the Ensemble Adaboost classification algorithm shows best accuracy results for the prediction of the pupils used in OSH. This classification algorithm gives an average prediction accuracy of 97.75%","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"37 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75748715","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597977
R. Talukder, A. Major
Thermal lens modeling in a microchip Nd:YAG laser is presented. We found that the position and strength of effective thermal lensing depend on pump focusing condition. This can be used as an additional degree of freedom to optimize high power operation of lasers pumped by a highly diverging beam.
{"title":"Thermal lensing in a microchip Nd:YAG laser","authors":"R. Talukder, A. Major","doi":"10.1109/PN52152.2021.9597977","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597977","url":null,"abstract":"Thermal lens modeling in a microchip Nd:YAG laser is presented. We found that the position and strength of effective thermal lensing depend on pump focusing condition. This can be used as an additional degree of freedom to optimize high power operation of lasers pumped by a highly diverging beam.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"977 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77598551","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597970
Arash Nikniazi, J. Nunzi
The rising awareness regarding the ramifications of greenhouse gas emissions on climate trends on a long-term basis pushes for the development of renewable energy technologies. Luminescent solar concentrators (LSCs) are widely viewed as not only a technology full of promise but also within easy reach in order to reduce architectural impediments to the integration of photovoltaic (PV) systems, as well as being as an economical strategy to develop it into new and untried areas. By means of this exposition, we attempt to analytically look into and model parabolic LSCs by COMSOL ray optics so as to introduce optimized manufacturing parameters for 3D printing technologies.
{"title":"Development of parabolic luminescent solar concentrators by 3D printing","authors":"Arash Nikniazi, J. Nunzi","doi":"10.1109/PN52152.2021.9597970","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597970","url":null,"abstract":"The rising awareness regarding the ramifications of greenhouse gas emissions on climate trends on a long-term basis pushes for the development of renewable energy technologies. Luminescent solar concentrators (LSCs) are widely viewed as not only a technology full of promise but also within easy reach in order to reduce architectural impediments to the integration of photovoltaic (PV) systems, as well as being as an economical strategy to develop it into new and untried areas. By means of this exposition, we attempt to analytically look into and model parabolic LSCs by COMSOL ray optics so as to introduce optimized manufacturing parameters for 3D printing technologies.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"6 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80059157","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597969
Yue Chai, N. Marsal, D. Wolfersberger
We numerically investigate the propagation and interaction of Bessel beams in a photorefractive (PR) nonlinear medium. By varying Bessel beam parameters and the PR nonlinearity, complex multi-channel structures can be photoinduced by single or two counter-propagating (CP) Bessel beams. These results pave the way towards all-optical interconnects.
{"title":"Multi-channel waveguides induced by Bessel beams in a photorefractive medium","authors":"Yue Chai, N. Marsal, D. Wolfersberger","doi":"10.1109/PN52152.2021.9597969","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597969","url":null,"abstract":"We numerically investigate the propagation and interaction of Bessel beams in a photorefractive (PR) nonlinear medium. By varying Bessel beam parameters and the PR nonlinearity, complex multi-channel structures can be photoinduced by single or two counter-propagating (CP) Bessel beams. These results pave the way towards all-optical interconnects.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"11 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81902825","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597912
A. Rodin, P. Mackonis, A. Petrulėnas
We analyze the advantages of Transient Stimulated Raman Chirped-Pulse Amplification (TSRCPA) as an alternative to OPCP A for upscaling broadband NIR-SWIR-MIR radiation in crystals, liquids and gases with spectrum synthesis and compression to <50 fs. For the first time, signal-to-idler energy transfer at ~2250 nm Stokes is shown, paving the way for high-performance hybrid OPCP A-TSRCPA configurations.
{"title":"Transient Stimulated Raman Chirped-Pulse Amplification (TSRCPA) as an Alternative or Complementary to OPCPA","authors":"A. Rodin, P. Mackonis, A. Petrulėnas","doi":"10.1109/PN52152.2021.9597912","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597912","url":null,"abstract":"We analyze the advantages of Transient Stimulated Raman Chirped-Pulse Amplification (TSRCPA) as an alternative to OPCP A for upscaling broadband NIR-SWIR-MIR radiation in crystals, liquids and gases with spectrum synthesis and compression to <50 fs. For the first time, signal-to-idler energy transfer at ~2250 nm Stokes is shown, paving the way for high-performance hybrid OPCP A-TSRCPA configurations.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"2 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72884635","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597894
B. Shastri, C. Huang, A. Tait, T. F. de Lima, P. Prucnal
Integrated optical neural networks are much smaller (hundreds of neurons) than electronic implementations (tens of millions of neurons). However, the bandwidth and interconnect density in optics is significantly superior to that in electronics. This raises a question: what are the applications where sub-nanosecond latencies and energy efficiency trump the sheer size of processor? This talk will discuss of photonic neural networks in computing, communication, and signal processing.
{"title":"Photonic Neural Networks Applications","authors":"B. Shastri, C. Huang, A. Tait, T. F. de Lima, P. Prucnal","doi":"10.1109/PN52152.2021.9597894","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597894","url":null,"abstract":"Integrated optical neural networks are much smaller (hundreds of neurons) than electronic implementations (tens of millions of neurons). However, the bandwidth and interconnect density in optics is significantly superior to that in electronics. This raises a question: what are the applications where sub-nanosecond latencies and energy efficiency trump the sheer size of processor? This talk will discuss of photonic neural networks in computing, communication, and signal processing.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"72 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86341593","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597938
K. Hall, A. Ramachandran, G. Wilbur, S. O'Neal, D. Deppe
We report the demonstration of suppression of decoherence tied to electron-phonon coupling in telecom-compatible semiconductor quantum dots (QDs) through adiabatic rapid passage in the strong driving regime.
{"title":"Quantum Control of Decoherence in Solid State Emitters using Femtosecond Pulse Shaping","authors":"K. Hall, A. Ramachandran, G. Wilbur, S. O'Neal, D. Deppe","doi":"10.1109/PN52152.2021.9597938","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597938","url":null,"abstract":"We report the demonstration of suppression of decoherence tied to electron-phonon coupling in telecom-compatible semiconductor quantum dots (QDs) through adiabatic rapid passage in the strong driving regime.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"43 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88191211","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597925
S. Murshid, S. Harish, C. Su
We present the experimental setup and results for a prism-based de-multiplexer to spatially filter and route the two-channels from an SDM system operating at 1550nm at 11Gpbs data to separate detectors for subsequent detection and processing.
{"title":"Experimental Results for SDM Communication System Using Prism Based De-Multiplexer","authors":"S. Murshid, S. Harish, C. Su","doi":"10.1109/PN52152.2021.9597925","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597925","url":null,"abstract":"We present the experimental setup and results for a prism-based de-multiplexer to spatially filter and route the two-channels from an SDM system operating at 1550nm at 11Gpbs data to separate detectors for subsequent detection and processing.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"47 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91191536","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597955
O. Hort, M. Jurkovic, J. Nejdl, V. Strelkov
The main workhorse of the production of coherent XUV attosecond pulses, and therefore a tool of choice for atomic and molecular physics applications, is the high-order harmonic generation technique (HHG). The HHG technique, however, has its limits: it cannot deliver high-energy XUV pulses. The HHG's problem is fundamental: the HHG process is very inefficient, which strongly limits XUV applicability. We propose to use a recently demonstrated powerful alternative technique of XUV generation, based on the high-order parametric processes. We discuss the results and the feasibility at the unique ELI Beamlines laser facility.
{"title":"Perspectives of parametric generation of coherent XUV radiation at ELI Beamlines facility","authors":"O. Hort, M. Jurkovic, J. Nejdl, V. Strelkov","doi":"10.1109/PN52152.2021.9597955","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597955","url":null,"abstract":"The main workhorse of the production of coherent XUV attosecond pulses, and therefore a tool of choice for atomic and molecular physics applications, is the high-order harmonic generation technique (HHG). The HHG technique, however, has its limits: it cannot deliver high-energy XUV pulses. The HHG's problem is fundamental: the HHG process is very inefficient, which strongly limits XUV applicability. We propose to use a recently demonstrated powerful alternative technique of XUV generation, based on the high-order parametric processes. We discuss the results and the feasibility at the unique ELI Beamlines laser facility.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"67 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76703117","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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