Pub Date : 2019-08-01DOI: 10.1109/RAPID.2019.8864408
S. Arafin, L. Coldren, S. Dwivedi
We report the design of electrically-pumped high-power vertical-external-cavity surface-emitting lasers emitting at the mid-wave infrared wavelength regime. The device is designed with a monolithic configuration that can provide multiwatts of continuous-wave output power in a single transverse mode with an excellent beam quality.
{"title":"Design of High-Power Electrically-Pumped VECSELs for the 3–4 μm Wavelength Range","authors":"S. Arafin, L. Coldren, S. Dwivedi","doi":"10.1109/RAPID.2019.8864408","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864408","url":null,"abstract":"We report the design of electrically-pumped high-power vertical-external-cavity surface-emitting lasers emitting at the mid-wave infrared wavelength regime. The device is designed with a monolithic configuration that can provide multiwatts of continuous-wave output power in a single transverse mode with an excellent beam quality.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130319059","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864266
G. Bohannon, Yit-Tsi Kwan, Alan C. Bohannon
We present a method for computing a fully focused image that includes radiative near field effects. These effects can be important when imaging targets with RF data under geometrical conditions in which the curvature of the electromagnetic wavefront cannot be ignored. We have found the technique to be useful for identifying scattering sources on complex targets, and for comparing simulated radar signatures with measured data. We believe the method can also serve to provide benchmarks for comparison with tactical imaging algorithms that may rely on approximations to achieve real time performance.
{"title":"Near Field Imaging for RF Scattering Analysis","authors":"G. Bohannon, Yit-Tsi Kwan, Alan C. Bohannon","doi":"10.1109/RAPID.2019.8864266","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864266","url":null,"abstract":"We present a method for computing a fully focused image that includes radiative near field effects. These effects can be important when imaging targets with RF data under geometrical conditions in which the curvature of the electromagnetic wavefront cannot be ignored. We have found the technique to be useful for identifying scattering sources on complex targets, and for comparing simulated radar signatures with measured data. We believe the method can also serve to provide benchmarks for comparison with tactical imaging algorithms that may rely on approximations to achieve real time performance.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134327243","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864431
Tingyi Gu, Dun Mao, Tiantian Li, T. Kananen
Sufficiently large depletion region for photocarrier generation and separation is a key factor for two-dimensional material optoelectronic devices, but few device configurations have been explored for a deterministic control of a space charge region area in graphene with convincing scalability. Here we investigate a graphene-silicon p-i-n photodiode defined in a foundry processed planar photonic crystal waveguide structure, achieving visible — near-infrared, zero-bias and ultrafast photodetection. Graphene is electrically contacting to the wide intrinsic region of silicon and extended to the p an n doped region, functioning as the primary photocarrier conducting channel for electronic gain. Graphene significantly improves the device speed through ultrafast out-of-plane interfacial carrier transfer and the following in-plane built-in electric field assisted carrier collection. More than 50 dB converted signal-to-noise ratio at 40 GHz has been demonstrated under zero bias voltage, with quantum efficiency could be further amplified by hot carrier gain on graphene-i Si interface and avalanche process on graphene-doped Si interface. The multi-junction structure on the hybrid structure is parameterized by fitting a small-signal model to the broadband coherent radio-frequency response of the hybrid device at a set of different carrier injection rates. By engineering the device dimensions, it is possible to suppress the resistance-capacitance delay being less than a picosecond and enable sub-Terahertz bandwidth operation. With the device architecture fully defined by nanomanufactured substrate, this study is the first demonstration of post-fabrication-free two-dimensional material active silicon photonic devices.
{"title":"High Detectivity in CMOS Substrate Powered Graphene p-i-n Junction","authors":"Tingyi Gu, Dun Mao, Tiantian Li, T. Kananen","doi":"10.1109/RAPID.2019.8864431","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864431","url":null,"abstract":"Sufficiently large depletion region for photocarrier generation and separation is a key factor for two-dimensional material optoelectronic devices, but few device configurations have been explored for a deterministic control of a space charge region area in graphene with convincing scalability. Here we investigate a graphene-silicon p-i-n photodiode defined in a foundry processed planar photonic crystal waveguide structure, achieving visible — near-infrared, zero-bias and ultrafast photodetection. Graphene is electrically contacting to the wide intrinsic region of silicon and extended to the p an n doped region, functioning as the primary photocarrier conducting channel for electronic gain. Graphene significantly improves the device speed through ultrafast out-of-plane interfacial carrier transfer and the following in-plane built-in electric field assisted carrier collection. More than 50 dB converted signal-to-noise ratio at 40 GHz has been demonstrated under zero bias voltage, with quantum efficiency could be further amplified by hot carrier gain on graphene-i Si interface and avalanche process on graphene-doped Si interface. The multi-junction structure on the hybrid structure is parameterized by fitting a small-signal model to the broadband coherent radio-frequency response of the hybrid device at a set of different carrier injection rates. By engineering the device dimensions, it is possible to suppress the resistance-capacitance delay being less than a picosecond and enable sub-Terahertz bandwidth operation. With the device architecture fully defined by nanomanufactured substrate, this study is the first demonstration of post-fabrication-free two-dimensional material active silicon photonic devices.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115314728","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864259
Thien-An Nguyen, Hardik B. Jain, S. Vishwanath
We demonstrate an optical filter to cancel 20 dB of various multipath self-interference components over a multioctave 600 MHz band centered around 400 MHz. This enables significant gains in transceiver effectiveness by enabling Simultaneous Transmit and Receive (STAR).
{"title":"Enabling Simultaneous Transmit and Receive with Optical Interference Cancellation","authors":"Thien-An Nguyen, Hardik B. Jain, S. Vishwanath","doi":"10.1109/RAPID.2019.8864259","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864259","url":null,"abstract":"We demonstrate an optical filter to cancel 20 dB of various multipath self-interference components over a multioctave 600 MHz band centered around 400 MHz. This enables significant gains in transceiver effectiveness by enabling Simultaneous Transmit and Receive (STAR).","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116214867","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 : 2019-08-01DOI: 10.1109/rapid.2019.8864353
Jiaxin Peng, Shuai Sun, Vikram K. Narayana, T. El-Ghazawi, V. Sorger
Here we show a nanophotonic RNS arithmetic implementation by spatially shifting the input waveguides relative to a crossbar routers' outputs, where the moduli are represented by the number of waveguides. This highly parallelizable in-the-network kernel processes information at 10's of ps suitable for real-time computing.
{"title":"Silicon Photonic Enabled Residue Number System Adder and Multiplier","authors":"Jiaxin Peng, Shuai Sun, Vikram K. Narayana, T. El-Ghazawi, V. Sorger","doi":"10.1109/rapid.2019.8864353","DOIUrl":"https://doi.org/10.1109/rapid.2019.8864353","url":null,"abstract":"Here we show a nanophotonic RNS arithmetic implementation by spatially shifting the input waveguides relative to a crossbar routers' outputs, where the moduli are represented by the number of waveguides. This highly parallelizable in-the-network kernel processes information at 10's of ps suitable for real-time computing.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123609347","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 : 2019-08-01DOI: 10.1109/rapid.2019.8864273
Ekaterina Ponizovskaya Devine, S. Ghandiparsi, C. Pérez, A. Elrefaie, Toshishige Yamada, M. Islam, Shih-Yuan Wang
The photon trapping nano-structures help to enhance quantum efficiency in ultra-thin photodetectors that allows to design faster devices. The study shows simulations for light trapping and carriers transport in Si MSM photodetector with micro-hole structure at wavelength 800–950nm.
{"title":"Ultra-Thin MSM Photodetectors with Nano-Structured Surface","authors":"Ekaterina Ponizovskaya Devine, S. Ghandiparsi, C. Pérez, A. Elrefaie, Toshishige Yamada, M. Islam, Shih-Yuan Wang","doi":"10.1109/rapid.2019.8864273","DOIUrl":"https://doi.org/10.1109/rapid.2019.8864273","url":null,"abstract":"The photon trapping nano-structures help to enhance quantum efficiency in ultra-thin photodetectors that allows to design faster devices. The study shows simulations for light trapping and carriers transport in Si MSM photodetector with micro-hole structure at wavelength 800–950nm.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123793374","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864251
T. Dillon, C. Schuetz, Andrew A. Wright, Stephen T. Kozacik, Zachary El-Azom, S. Shi, D. Prather, Adam J. Rutkowski
We present a passive millimeter wave imager for aerial vehicle navigation in degraded visual and GPS-denied environments. The sensor employs aperture synthesis imaging techniques with optical upconversion of millimeter wave signals and coherent reconstruction in the optical domain to enable a suitably small form factor.
{"title":"Compact Passive Millimeter Wave Imager for Degraded Visual and GPS-Denied Navigation","authors":"T. Dillon, C. Schuetz, Andrew A. Wright, Stephen T. Kozacik, Zachary El-Azom, S. Shi, D. Prather, Adam J. Rutkowski","doi":"10.1109/RAPID.2019.8864251","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864251","url":null,"abstract":"We present a passive millimeter wave imager for aerial vehicle navigation in degraded visual and GPS-denied environments. The sensor employs aperture synthesis imaging techniques with optical upconversion of millimeter wave signals and coherent reconstruction in the optical domain to enable a suitably small form factor.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126213393","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864354
M. Miscuglio, Zibo Hu, J. George, V. Sorger
Convolution Neural Networks (CNN) are artificial networks able to extract features from large dataset by spatial filtering. Here we propose an optical coprocessor able to perform large image Altering and convolutions, outperforming current architectures.
{"title":"Fourier Optics Coprocessor for Image Processing and Convolutional Neural Network","authors":"M. Miscuglio, Zibo Hu, J. George, V. Sorger","doi":"10.1109/RAPID.2019.8864354","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864354","url":null,"abstract":"Convolution Neural Networks (CNN) are artificial networks able to extract features from large dataset by spatial filtering. Here we propose an optical coprocessor able to perform large image Altering and convolutions, outperforming current architectures.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125032913","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864426
Miguel Hernandez, Tianne L. Lassiter, Peyman Barakhshan, Alexis Deputy, G. Ejzak, F. Kiamilev
Building an Infrared Scene Projector (IRSP) requires reliable electronics. Our Closed System Electronics (CSE) is designed to be modular and scalable to drive current and future IRSPs. This work highlights the production, performance, packaging, and hardware developments of our CSE.
{"title":"Small Batch Production and Test of Custom Support Electronics for Infrared LED Scene Projectors","authors":"Miguel Hernandez, Tianne L. Lassiter, Peyman Barakhshan, Alexis Deputy, G. Ejzak, F. Kiamilev","doi":"10.1109/RAPID.2019.8864426","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864426","url":null,"abstract":"Building an Infrared Scene Projector (IRSP) requires reliable electronics. Our Closed System Electronics (CSE) is designed to be modular and scalable to drive current and future IRSPs. This work highlights the production, performance, packaging, and hardware developments of our CSE.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127495540","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 : 2019-08-01DOI: 10.1109/RAPID.2019.8864401
Z. Loparo, Erik M. Ninnemann, Kyle Thurmond, A. Laich, Ahmad Azim, A. Lyakh, Subith S. Vasu
A fast temperature diagnostic for time-resolved measurements in harsh environments based on an acousto-optically modulated quantum cascade laser is demonstrated in shock-heated mixtures of carbon monoxide. The temperature measurements made with this system are largely insensitive to beam steering noise.
{"title":"Time-Resolved, Laser-Absorption Temperature Measurement in Shock Heated Mixtures with Reduced Beam Steering and Emission Noise","authors":"Z. Loparo, Erik M. Ninnemann, Kyle Thurmond, A. Laich, Ahmad Azim, A. Lyakh, Subith S. Vasu","doi":"10.1109/RAPID.2019.8864401","DOIUrl":"https://doi.org/10.1109/RAPID.2019.8864401","url":null,"abstract":"A fast temperature diagnostic for time-resolved measurements in harsh environments based on an acousto-optically modulated quantum cascade laser is demonstrated in shock-heated mixtures of carbon monoxide. The temperature measurements made with this system are largely insensitive to beam steering noise.","PeriodicalId":143675,"journal":{"name":"2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126879711","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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