Pub Date : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230934
Jay L. Christopher, Mark Donnachie, D. Uttamchandani, R. Bauer
Line-scan rates of mechanical scanners are in general limited to <100 kHz for scan mirror apertures of up to 1 mm. We present work to increase the line-scan rate of a MEMS micromirror beyond this through a scan multiplication unit consisting of a mirror, a cylindrical lens, and a 3D-printed cylindrical microlens array with 1 mm pitch and 2.5 mm effective focal length. Scan rates of up to 635 kHz at the scan line centre are demonstrated with seven array lenslets, with the compact multiplier having the potential to achieve over 1 MHz line-scan rate using higher element numbers.
{"title":"Increasing MEMS Micromirror Line-Scan Rates through 3D-Printed Micro-Optics","authors":"Jay L. Christopher, Mark Donnachie, D. Uttamchandani, R. Bauer","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230934","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230934","url":null,"abstract":"Line-scan rates of mechanical scanners are in general limited to <100 kHz for scan mirror apertures of up to 1 mm. We present work to increase the line-scan rate of a MEMS micromirror beyond this through a scan multiplication unit consisting of a mirror, a cylindrical lens, and a 3D-printed cylindrical microlens array with 1 mm pitch and 2.5 mm effective focal length. Scan rates of up to 635 kHz at the scan line centre are demonstrated with seven array lenslets, with the compact multiplier having the potential to achieve over 1 MHz line-scan rate using higher element numbers.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"21 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73801893","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 : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230976
R. Galiev, R. Saripalli, J. Coronel, K. Elayoubi, C. Kasmi, S. Cordette
We study the propagation properties of scalar and vector vortex beams through a turbulent atmosphere. The irradi-ance beam profile, scintillation index and crosstalk are computed for different propagation distances in atmosphere with weak and strong turbulences. We also implement a neural network for a classification task to determine the number of topological charges of the scalar and vector vortex beams.
{"title":"Comparison of Scalar and Vector Vortex Beams for Turbulence-Immune Applications","authors":"R. Galiev, R. Saripalli, J. Coronel, K. Elayoubi, C. Kasmi, S. Cordette","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230976","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230976","url":null,"abstract":"We study the propagation properties of scalar and vector vortex beams through a turbulent atmosphere. The irradi-ance beam profile, scintillation index and crosstalk are computed for different propagation distances in atmosphere with weak and strong turbulences. We also implement a neural network for a classification task to determine the number of topological charges of the scalar and vector vortex beams.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"157 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73200446","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 : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230971
Julia Aline Sousa Maciel, T. Sutili, R. Figueiredo, D. Mello
The impact of probabilistic shaping in unrepeatered optical communication links operating in the linear, quasi-linear, and nonlinear regimes is investigated. System performance is evaluated considering both uniform and Maxwell-Boltzmann distributions at three different representative launch power levels. Results show shaping-induced gains for all investigated scenarios.
{"title":"Optimization of Unrepeatered Optical Links with Probabilistic Shaping for Heterogenous Propagation Regimes","authors":"Julia Aline Sousa Maciel, T. Sutili, R. Figueiredo, D. Mello","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230971","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230971","url":null,"abstract":"The impact of probabilistic shaping in unrepeatered optical communication links operating in the linear, quasi-linear, and nonlinear regimes is investigated. System performance is evaluated considering both uniform and Maxwell-Boltzmann distributions at three different representative launch power levels. Results show shaping-induced gains for all investigated scenarios.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"4 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78689433","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 : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230983
Gabriel Labes Rodrigues, Cristiano M. B. Cordeiro, F. Amrani, F. Gérôme, F. Benabid, J. Osório
We report the realization of temperature sensing measurements using a water-filled hollow-core photonic crystal fiber. The operation of the sensor relies on the thermo-optic effect-mediated spectral shifts of the fiber transmission bands due to temperature variations. The characterization of our device allowed us to estimate a sensitivity of $(0.42pm 0.04)text{nm}/^{circ}mathrm{C}$ and to identify the studied platform as a valid path for the development of fiber-based temperature sensors.
{"title":"Temperature Sensing with a Liquid-Filled Hollow-Core Photonic Crystal Fiber","authors":"Gabriel Labes Rodrigues, Cristiano M. B. Cordeiro, F. Amrani, F. Gérôme, F. Benabid, J. Osório","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230983","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230983","url":null,"abstract":"We report the realization of temperature sensing measurements using a water-filled hollow-core photonic crystal fiber. The operation of the sensor relies on the thermo-optic effect-mediated spectral shifts of the fiber transmission bands due to temperature variations. The characterization of our device allowed us to estimate a sensitivity of $(0.42pm 0.04)text{nm}/^{circ}mathrm{C}$ and to identify the studied platform as a valid path for the development of fiber-based temperature sensors.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"23 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78731622","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 : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230924
Avijit Das, M. Mah, J. Talghader
A subwavelength perforated structure designed for a maximum absorption-to-mass ratio has been utilized to construct an uncooled infrared $(lambda sim 8-12 mu mathrm{m})$ thermal detector operating in air with a noise equivalent temperature difference (NETD) of $23 text{mK}$ and detectivity of $1.1times 10^{9}text{cm}sqrt{mathrm{H}mathrm{z}}/mathrm{W}$ while time constant is 1.5 ms. With a fill factor of $sim 27%$, the detector shows an average absorption per unit mass of $sim 6.8times 10^{12}text{kg}^{-1}$ over the long-wave infrared regime. Mach-Zehnder interferometry has been used for optical readout of the detector.
{"title":"High Absorption per Unit Mass Subwavelength Structure as Uncooled Infrared Detector","authors":"Avijit Das, M. Mah, J. Talghader","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230924","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230924","url":null,"abstract":"A subwavelength perforated structure designed for a maximum absorption-to-mass ratio has been utilized to construct an uncooled infrared $(lambda sim 8-12 mu mathrm{m})$ thermal detector operating in air with a noise equivalent temperature difference (NETD) of $23 text{mK}$ and detectivity of $1.1times 10^{9}text{cm}sqrt{mathrm{H}mathrm{z}}/mathrm{W}$ while time constant is 1.5 ms. With a fill factor of $sim 27%$, the detector shows an average absorption per unit mass of $sim 6.8times 10^{12}text{kg}^{-1}$ over the long-wave infrared regime. Mach-Zehnder interferometry has been used for optical readout of the detector.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"12 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81797214","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 : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230922
F. Prado, Tomás Junqueira Franco, N. Wetter
We report a record optical-to-optical efficiency of 43% and a slope efficiency of 48% for a Nd: YLF laser emitting at 1314 nm. The crystal was side-pumped by a VBG-equipped diode emitting at 797 mn, with a peak power of 1545 W. We also report simultaneous dual-wavelength emission, at 1313 nm and 1047 nm.
{"title":"Highly-Efficient, Dual-Wavelength Nd:YLF Laser Emitting at 1314 nm and 1047 nm","authors":"F. Prado, Tomás Junqueira Franco, N. Wetter","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230922","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230922","url":null,"abstract":"We report a record optical-to-optical efficiency of 43% and a slope efficiency of 48% for a Nd: YLF laser emitting at 1314 nm. The crystal was side-pumped by a VBG-equipped diode emitting at 797 mn, with a peak power of 1545 W. We also report simultaneous dual-wavelength emission, at 1313 nm and 1047 nm.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"212 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86916402","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 : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230926
M. J. da Silva, L. G. M. Riveros, Bethânia A. Gomes, Carine Mineto, J. A. S. Maciel, F. Simões, T. Sutili, R. Figueiredo
Erbium-doped fiber amplifiers performance, especially designed with high doping concentration to operate at the optical L-band, were experimentally characterized in terms of gain, ripple, and noise figure power masks as a function of both pump power and signal input power. The results indicate the possibility of achieving an optical gain of around 15 dB with a nearly equalized output, using doped fibers with only 25 m of length.
{"title":"Performance Assessment of L-Band High-Concentration EDFA Using Power Masks","authors":"M. J. da Silva, L. G. M. Riveros, Bethânia A. Gomes, Carine Mineto, J. A. S. Maciel, F. Simões, T. Sutili, R. Figueiredo","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230926","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230926","url":null,"abstract":"Erbium-doped fiber amplifiers performance, especially designed with high doping concentration to operate at the optical L-band, were experimentally characterized in terms of gain, ripple, and noise figure power masks as a function of both pump power and signal input power. The results indicate the possibility of achieving an optical gain of around 15 dB with a nearly equalized output, using doped fibers with only 25 m of length.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"17 1","pages":"01-02"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82473256","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 : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230920
Lidia O. Rosa, Eduarda F. Morais, Cristiano M. B. Cordeiro, E. Fujiwara
This work reports the fabrication of agar ball lenses, an biodegradable, edible, and renewable material. Pouring melted agar-glycerol-water solutions into vegetable oil produces transparent spheres whose refractive index and diameter change with glycerol concentration and agitation speed. Results confirm the agar lens feasibility for imaging suggesting possible applications.
{"title":"Biodegradable Ball Lenses made of Agar","authors":"Lidia O. Rosa, Eduarda F. Morais, Cristiano M. B. Cordeiro, E. Fujiwara","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230920","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230920","url":null,"abstract":"This work reports the fabrication of agar ball lenses, an biodegradable, edible, and renewable material. Pouring melted agar-glycerol-water solutions into vegetable oil produces transparent spheres whose refractive index and diameter change with glycerol concentration and agitation speed. Results confirm the agar lens feasibility for imaging suggesting possible applications.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"26 1","pages":"01-02"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90341476","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 : 2023-07-30DOI: 10.1109/OMN/SBFotonIOPC58971.2023.10230961
Wenhao Chen, Huahuang Luo, Mingzheng Duan, Hadi Tavakkoli, W. Piyawattanametha, Yi-Kuen Lee
For the first time, we present a two-dimensional theoretical model for one-dimensional comb-actuated MEMS mirror with cascaded structures. The numerical model including different damping mechanisms and nonlinear capacitive force is validated with experiment results. Stability analysis is conducted to simulate the nonlinear hysteretic frequency response. The model proposed can be a guideline for designing multi-degree-of-freedom nonlinear parametric-excited MEMS mirror with high frequency and large scan angle.
{"title":"Theoretical and Experimental Study of Comb-Actuated Mirror with Cascaded Structures","authors":"Wenhao Chen, Huahuang Luo, Mingzheng Duan, Hadi Tavakkoli, W. Piyawattanametha, Yi-Kuen Lee","doi":"10.1109/OMN/SBFotonIOPC58971.2023.10230961","DOIUrl":"https://doi.org/10.1109/OMN/SBFotonIOPC58971.2023.10230961","url":null,"abstract":"For the first time, we present a two-dimensional theoretical model for one-dimensional comb-actuated MEMS mirror with cascaded structures. The numerical model including different damping mechanisms and nonlinear capacitive force is validated with experiment results. Stability analysis is conducted to simulate the nonlinear hysteretic frequency response. The model proposed can be a guideline for designing multi-degree-of-freedom nonlinear parametric-excited MEMS mirror with high frequency and large scan angle.","PeriodicalId":31141,"journal":{"name":"Netcom","volume":"15 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78283698","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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