Pub Date : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059569
H. Nasu
Co-packaging is a promising solution to support high-density high-speed signal transmission for the next generation very wide bandwidth network switches. We have demonstrated solderable VCSEL-based parallel optical modules which can minimize the foot print because it does not require any electrical pluggable interface. The optical module has been adopted to 100-Gb/s QSFP28 in commercialization. Here, we study how the optical modules can support network switches on the co-packaging architecture. Based on an assumption to simplify the co-packaging structure, we study the relationship between the width of optical module, the distance between optical module and switch ASIC, the length of substrate. As discussed, a data rate per channel should be 100 Gb/s or higher. A small 1.6-Tb/s or 3.2 Tb/s optical module might be suitable for a 51.2-Tb/s network switch.
{"title":"Compressive Sensing Detection of RF Signals by All-Optically Generated Binary Random Patterns","authors":"H. Nasu","doi":"10.1109/BICOP48819.2019.9059569","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059569","url":null,"abstract":"Co-packaging is a promising solution to support high-density high-speed signal transmission for the next generation very wide bandwidth network switches. We have demonstrated solderable VCSEL-based parallel optical modules which can minimize the foot print because it does not require any electrical pluggable interface. The optical module has been adopted to 100-Gb/s QSFP28 in commercialization. Here, we study how the optical modules can support network switches on the co-packaging architecture. Based on an assumption to simplify the co-packaging structure, we study the relationship between the width of optical module, the distance between optical module and switch ASIC, the length of substrate. As discussed, a data rate per channel should be 100 Gb/s or higher. A small 1.6-Tb/s or 3.2 Tb/s optical module might be suitable for a 51.2-Tb/s network switch.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126167056","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 : 2019-12-01DOI: 10.1109/bicop48819.2019.9059581
P. Singaravelu, C. Devarapu, Sebastian Schulz, Yoji Sakaguchi, H. Fan, Jiangmin Mao, F. Quanyuan, Xiaopeng Diao, A. Abdou, J. Richter, S. Mandal, Zhong Ren, Rasmus H. Pedersen, O. Williams, J. Witzens
{"title":"Session 1: Optical Plenary","authors":"P. Singaravelu, C. Devarapu, Sebastian Schulz, Yoji Sakaguchi, H. Fan, Jiangmin Mao, F. Quanyuan, Xiaopeng Diao, A. Abdou, J. Richter, S. Mandal, Zhong Ren, Rasmus H. Pedersen, O. Williams, J. Witzens","doi":"10.1109/bicop48819.2019.9059581","DOIUrl":"https://doi.org/10.1109/bicop48819.2019.9059581","url":null,"abstract":"","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134523887","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 : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059573
H. Nieto-Chaupis
We use a Bloch-like representation for nonlinear Compton scattering in order to derive the energy conservation inside the Dirac-Delta argument. For this end is argued that a geodesic translation along the Bloch-like sphere would be perceived as the cause of the apparition of harmonics fact that it supports through the existence of phases seen as angles on the spherical system. The displacement along the sphere is perceived as a path that creates the well-known Berry's phase. The adiabatic mechanism might be responsible on the multiple absorption and emission of photons by a free electron under the interaction with a super-intense laser.
{"title":"Berry Phase in a Bloch-Like Sphere for Nonlinear Compton Scattering","authors":"H. Nieto-Chaupis","doi":"10.1109/BICOP48819.2019.9059573","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059573","url":null,"abstract":"We use a Bloch-like representation for nonlinear Compton scattering in order to derive the energy conservation inside the Dirac-Delta argument. For this end is argued that a geodesic translation along the Bloch-like sphere would be perceived as the cause of the apparition of harmonics fact that it supports through the existence of phases seen as angles on the spherical system. The displacement along the sphere is perceived as a path that creates the well-known Berry's phase. The adiabatic mechanism might be responsible on the multiple absorption and emission of photons by a free electron under the interaction with a super-intense laser.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133604276","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 : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059568
S. Gwyn, S. Watson, M. Knapp, S. Viola, G. Giuliano, T. Slight, S. Stanczyk, S. Grzanka, C. Robinson, A. Yadav, K. Docherty, E. Rafailov, P. Perlin, S. Najda, M. Leszczynski, M. Haji, A. Kelly
Owing to increased performance capabilities over their LED counterparts, Gallium Nitride (GaN) based Laser Diodes (LDs) are becoming more prevalent in several applications, including lighting, visible light communications, medical spectroscopy, and atom cooling. For many of these applications, a tunable, precise wavelength is necessary such that chromatic aberrations are minimized and that specific wavelengths with narrow linewidth can be utilized for atomic transitions or filtered communications systems. This paper discusses one method of achieving single-mode lasing operation in GaN LDs, namely the deeply-etched sidewall grating Distributed Feedback (DFB) LD. Optical characteristics of such devices will be discussed, as well as their feasibility for optical communications.
{"title":"Single Frequency Blue Lasers","authors":"S. Gwyn, S. Watson, M. Knapp, S. Viola, G. Giuliano, T. Slight, S. Stanczyk, S. Grzanka, C. Robinson, A. Yadav, K. Docherty, E. Rafailov, P. Perlin, S. Najda, M. Leszczynski, M. Haji, A. Kelly","doi":"10.1109/BICOP48819.2019.9059568","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059568","url":null,"abstract":"Owing to increased performance capabilities over their LED counterparts, Gallium Nitride (GaN) based Laser Diodes (LDs) are becoming more prevalent in several applications, including lighting, visible light communications, medical spectroscopy, and atom cooling. For many of these applications, a tunable, precise wavelength is necessary such that chromatic aberrations are minimized and that specific wavelengths with narrow linewidth can be utilized for atomic transitions or filtered communications systems. This paper discusses one method of achieving single-mode lasing operation in GaN LDs, namely the deeply-etched sidewall grating Distributed Feedback (DFB) LD. Optical characteristics of such devices will be discussed, as well as their feasibility for optical communications.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122098198","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 : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059571
Yu Liu, A. Soltan, Nabeel Fattah, Zhenyang Hou, P. Degenaar
This research paper presents the wireless data and power transfer system for optogenetics visual cortical prosthesis. The system uses the inductive coupling power transfer and 2.4GHz Bluetooth 4.0 data transfer. This system contains two hardware parts: the external headset consists of power and data transmitters, image capture, and image processing units; the subcutaneous implant PCB consists of power and data receiver and the control unit. We also present the relative image processing method for this system. The whole system could power and control the optogenetic neural stimulus of the visual cortical prosthesis.
{"title":"Wireless Optogenetics Visual Cortical Prosthesis Control System","authors":"Yu Liu, A. Soltan, Nabeel Fattah, Zhenyang Hou, P. Degenaar","doi":"10.1109/BICOP48819.2019.9059571","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059571","url":null,"abstract":"This research paper presents the wireless data and power transfer system for optogenetics visual cortical prosthesis. The system uses the inductive coupling power transfer and 2.4GHz Bluetooth 4.0 data transfer. This system contains two hardware parts: the external headset consists of power and data transmitters, image capture, and image processing units; the subcutaneous implant PCB consists of power and data receiver and the control unit. We also present the relative image processing method for this system. The whole system could power and control the optogenetic neural stimulus of the visual cortical prosthesis.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130421378","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 : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059578
N. Bruce, F. Farrell, N. Laurand
The effect of temperature on the photoluminescent properties of an elastomeric colloidal quantum dot composite is presented. Results demonstrate that embedding colloidal quantum dots in a composite increases their thermal stability and that thermal degradation is an issue above 100°C independently of other photo-induced or oxygenrelated phenomena.
{"title":"Temperature Stability of Elastomeric Colloidal Quantum Dot Colour Converter","authors":"N. Bruce, F. Farrell, N. Laurand","doi":"10.1109/BICOP48819.2019.9059578","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059578","url":null,"abstract":"The effect of temperature on the photoluminescent properties of an elastomeric colloidal quantum dot composite is presented. Results demonstrate that embedding colloidal quantum dots in a composite increases their thermal stability and that thermal degradation is an issue above 100°C independently of other photo-induced or oxygenrelated phenomena.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121801443","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 : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059583
N. Riza, Nazim Ashraf, M. Mazhar
Proposed and demonstrated for the first time is robust testing of optical displays using the extreme linear Dynamic Range (DR) CAOS camera. Experiments highlight accurate and repeatable CAOS camera-based testing of standard 8-bit (i.e., 48 dB DR) and modified DR 10-bit (i.e., 60 dB DR) computer Liquid Crystal Displays (LCDs). Results are compared with CMOS camera and light meter-based LCD testing highlighting the robustness of the CAOS camera readings.
首次提出并演示了使用极端线性动态范围(DR) CAOS相机对光学显示器进行鲁棒性测试。实验强调了基于CAOS相机的标准8位(即48 dB DR)和修改DR 10位(即60 dB DR)计算机液晶显示器(lcd)的准确和可重复的测试。结果与CMOS相机和基于测光表的LCD测试进行了比较，突出了CAOS相机读数的稳健性。
{"title":"Robust Testing of Displays using the Extreme Linear Dynamic Range CAOS Camera","authors":"N. Riza, Nazim Ashraf, M. Mazhar","doi":"10.1109/BICOP48819.2019.9059583","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059583","url":null,"abstract":"Proposed and demonstrated for the first time is robust testing of optical displays using the extreme linear Dynamic Range (DR) CAOS camera. Experiments highlight accurate and repeatable CAOS camera-based testing of standard 8-bit (i.e., 48 dB DR) and modified DR 10-bit (i.e., 60 dB DR) computer Liquid Crystal Displays (LCDs). Results are compared with CMOS camera and light meter-based LCD testing highlighting the robustness of the CAOS camera readings.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123538323","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 : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059590
H. Nieto-Chaupis
We derived their classical counterpart of Feynman's amplitudes for electron and photons interaction in the super-intense regime through the Hartemann-Kerman theory in conjunction to the Reiss-Eberly criterion of quantization. Our derivation is supported by the conjecture of Ritus-Nikishov by which field quantization might have its origin through artificial mechanism. In this manner, the classical counterpart might also provide an alternative path to arrive to pure Quantum Mechanics processes. Thus, in this paper we demonstrate that nonlinear Compton and the corresponding “pseudo” Feynman rules can also de extracted from a pure classical description. We present various spectra for simple and double Compton scattering that are in fully agreement with the existent Literature.
{"title":"Quantum Effects without Quantum Fields: Feynman's Amplitudes in Classical Electrodynamics","authors":"H. Nieto-Chaupis","doi":"10.1109/BICOP48819.2019.9059590","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059590","url":null,"abstract":"We derived their classical counterpart of Feynman's amplitudes for electron and photons interaction in the super-intense regime through the Hartemann-Kerman theory in conjunction to the Reiss-Eberly criterion of quantization. Our derivation is supported by the conjecture of Ritus-Nikishov by which field quantization might have its origin through artificial mechanism. In this manner, the classical counterpart might also provide an alternative path to arrive to pure Quantum Mechanics processes. Thus, in this paper we demonstrate that nonlinear Compton and the corresponding “pseudo” Feynman rules can also de extracted from a pure classical description. We present various spectra for simple and double Compton scattering that are in fully agreement with the existent Literature.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128779251","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 : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059572
Waled Gheth, B. Adebisi, M. Ijaz, Laith Farhan, Georgina Harris
The mission-critical internet of things (IoT) has recently evolved to cover many applications such as e-health, power distribution systems, industrial and smart homes and cities. Such applications are anticipated to work every time without any fail which requires a constant data transmission. Hybrid communication systems are often used to provide reliable transmission, improve the performance of communication systems and provide better mobility to the end users. Contrary to the previous works on this area which discuss the implementation of relays between different communication links, the authors of this paper study the performance of cooperative visible-light communication (VLC) and radiofrequency (RF) communication systems with the presence of AF relay. The performance of the system under consideration is analyzed in terms of ergodic capacity. A mathematical method is exploited for this hybrid system to formulate the overall capacity of the proposed system by using the characteristics of the VLC and RF channels. The analytical results of the derived expression are verified by Monte Carlo simulations throughout this letter. The authors also investigate the effect of the several system parameters on its performance. The results revealed that the length of each link has a negative impact on the system performance. It was also found that the capacity of the integrated VLC/RF system is significantly improved by increasing the AF relay gain.
{"title":"Hybrid Visible-Light/RF Communication System for Mission-Critical IoT Applications","authors":"Waled Gheth, B. Adebisi, M. Ijaz, Laith Farhan, Georgina Harris","doi":"10.1109/BICOP48819.2019.9059572","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059572","url":null,"abstract":"The mission-critical internet of things (IoT) has recently evolved to cover many applications such as e-health, power distribution systems, industrial and smart homes and cities. Such applications are anticipated to work every time without any fail which requires a constant data transmission. Hybrid communication systems are often used to provide reliable transmission, improve the performance of communication systems and provide better mobility to the end users. Contrary to the previous works on this area which discuss the implementation of relays between different communication links, the authors of this paper study the performance of cooperative visible-light communication (VLC) and radiofrequency (RF) communication systems with the presence of AF relay. The performance of the system under consideration is analyzed in terms of ergodic capacity. A mathematical method is exploited for this hybrid system to formulate the overall capacity of the proposed system by using the characteristics of the VLC and RF channels. The analytical results of the derived expression are verified by Monte Carlo simulations throughout this letter. The authors also investigate the effect of the several system parameters on its performance. The results revealed that the length of each link has a negative impact on the system performance. It was also found that the capacity of the integrated VLC/RF system is significantly improved by increasing the AF relay gain.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133028446","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 : 2019-12-01DOI: 10.1109/BICOP48819.2019.9059575
Yui Kobayashi, Yoji Sakaguchi, T. Ishigure
For low-loss connection between silicon waveguides and conventional single-mode fibers, single-mode tapered polymer optical waveguides are fabricated using the Mosquito method, which work as a spot-size converter (SSC). In this research, the axially tapered shaped core is formed by accelerating the needle scan during the core dispense. In addition, the degradation of cross-sectional core shape from circle to ellipse is addressed by using a curved needle. The fabricated 12-mm long tapered waveguide with perfect circular core cross section exhibits an effective MFD conversion from 4.1 μm to 8.1 μm.
{"title":"Fabrication for Single-Mode Tapered Optical Waveguides for Spot-Size-Converter","authors":"Yui Kobayashi, Yoji Sakaguchi, T. Ishigure","doi":"10.1109/BICOP48819.2019.9059575","DOIUrl":"https://doi.org/10.1109/BICOP48819.2019.9059575","url":null,"abstract":"For low-loss connection between silicon waveguides and conventional single-mode fibers, single-mode tapered polymer optical waveguides are fabricated using the Mosquito method, which work as a spot-size converter (SSC). In this research, the axially tapered shaped core is formed by accelerating the needle scan during the core dispense. In addition, the degradation of cross-sectional core shape from circle to ellipse is addressed by using a curved needle. The fabricated 12-mm long tapered waveguide with perfect circular core cross section exhibits an effective MFD conversion from 4.1 μm to 8.1 μm.","PeriodicalId":339012,"journal":{"name":"2019 IEEE 2nd British and Irish Conference on Optics and Photonics (BICOP)","volume":"78 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133754238","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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