Pub Date : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758181
A. Kar, N. Goswami, A. Saha
A multilayered modified Otto configuration assisting graphene symmetric mode resonance is analytically explored to achieve low threshold optical bistability of about 2.5×105 V/m at 1 THz frequency. Through the proposed configuration, the effect of layer-number of spatially separated graphene sheets on the phenomenon of hysteresis is also investigated and has been found that the graphene symmetric mode resonance can be optimized through the variation of graphene layer-number, which will lead to minimal demand of input power for realizing the optical bistability using the suggested model. The proposed system offers promising applications in the realm of all-optical integrated devices.
{"title":"Effect of Multilayer Graphene on Symmetric Mode Induced Optical Bistability at Terahertz Frequency","authors":"A. Kar, N. Goswami, A. Saha","doi":"10.1109/WRAP54064.2022.9758181","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758181","url":null,"abstract":"A multilayered modified Otto configuration assisting graphene symmetric mode resonance is analytically explored to achieve low threshold optical bistability of about 2.5×105 V/m at 1 THz frequency. Through the proposed configuration, the effect of layer-number of spatially separated graphene sheets on the phenomenon of hysteresis is also investigated and has been found that the graphene symmetric mode resonance can be optimized through the variation of graphene layer-number, which will lead to minimal demand of input power for realizing the optical bistability using the suggested model. The proposed system offers promising applications in the realm of all-optical integrated devices.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130613084","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758372
A. Garg, Raghvendra Singh Deval, Karvy Mohnot, Anushka Joshi, V. Janyani, M. Aly
Predicting the risk of an optical fibre link prior to its deployment is a step of capital importance for an optimised design of the network. In this paper, we have tried to expand the power of abundant data into the field of optical fibre networks by predicting the probable risk post establishment of a candidate path based on its physical factors such as road density, obstruction density and water density, etc. for identifying the fibre implementation risk and achieving a better route.
{"title":"ML Based Risk Analysis and Route Prediction for Optical Fibre Link Network","authors":"A. Garg, Raghvendra Singh Deval, Karvy Mohnot, Anushka Joshi, V. Janyani, M. Aly","doi":"10.1109/WRAP54064.2022.9758372","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758372","url":null,"abstract":"Predicting the risk of an optical fibre link prior to its deployment is a step of capital importance for an optimised design of the network. In this paper, we have tried to expand the power of abundant data into the field of optical fibre networks by predicting the probable risk post establishment of a candidate path based on its physical factors such as road density, obstruction density and water density, etc. for identifying the fibre implementation risk and achieving a better route.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130873320","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758190
S. Mir, Lakshmi Narayanan Venkatasubramani, R. D. Koilpillai, D. Venkitesh
We present a novel carrier phase recovery algorithm in the presence of transmitter IQ imbalance using a joint equalizer by performing gradient descent adaptation for phase tracking and simultaneously adapting the reference constellation. We test the efficacy of the proposed algorithm for 32 GBd QPSK and 16QAM signals.
{"title":"Carrier Phase Recovery Scheme Tolerant to Transmitter IQ Imbalance with Adaptive Constellation Referencing","authors":"S. Mir, Lakshmi Narayanan Venkatasubramani, R. D. Koilpillai, D. Venkitesh","doi":"10.1109/WRAP54064.2022.9758190","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758190","url":null,"abstract":"We present a novel carrier phase recovery algorithm in the presence of transmitter IQ imbalance using a joint equalizer by performing gradient descent adaptation for phase tracking and simultaneously adapting the reference constellation. We test the efficacy of the proposed algorithm for 32 GBd QPSK and 16QAM signals.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123878807","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758279
Tushar Gaur, T. Srinivas
We propose an efficient and fast automated route and cycle finding algorithm for programmable photonic integrated circuits (PPIC). These algorithms are based on the depth-first search method and can find all the physical paths and cycles for a given PPIC, eliminating all the non-physical paths on their own.
{"title":"Automated Route and Cycle Finding Algorithms for Programmable Photonic Integrated Circuits","authors":"Tushar Gaur, T. Srinivas","doi":"10.1109/WRAP54064.2022.9758279","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758279","url":null,"abstract":"We propose an efficient and fast automated route and cycle finding algorithm for programmable photonic integrated circuits (PPIC). These algorithms are based on the depth-first search method and can find all the physical paths and cycles for a given PPIC, eliminating all the non-physical paths on their own.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123454644","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758219
Puneeta Thakur, Abhishek Kumar, Bhavya Tiwari, Bhavesh Gedam, V. Bhatia, Santosh Rana, S. Prakash
Viability assessment is one of the most important parameters for ensuring high crop yield. Hence, in this work, a machine learning (ML) based automatic approach for detection of seed viability is developed by using laser biospeckle technique. Temporal (absolute value difference (AVD)), as well as spatial features (contrast, and the spatial absolute value difference (SAVD)) from the acquired speckle images were extracted to train and test several state-of-the-art ML models. Obtained results showed that artificial neural network (ANN) based predictive model possess better performance as compared to other models with overall accuracy of 97.65% for classifying the viable seeds.
{"title":"Machine Learning based Biospeckle Technique for Identification of Seed Viability using Spatio-temporal Analysis","authors":"Puneeta Thakur, Abhishek Kumar, Bhavya Tiwari, Bhavesh Gedam, V. Bhatia, Santosh Rana, S. Prakash","doi":"10.1109/WRAP54064.2022.9758219","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758219","url":null,"abstract":"Viability assessment is one of the most important parameters for ensuring high crop yield. Hence, in this work, a machine learning (ML) based automatic approach for detection of seed viability is developed by using laser biospeckle technique. Temporal (absolute value difference (AVD)), as well as spatial features (contrast, and the spatial absolute value difference (SAVD)) from the acquired speckle images were extracted to train and test several state-of-the-art ML models. Obtained results showed that artificial neural network (ANN) based predictive model possess better performance as compared to other models with overall accuracy of 97.65% for classifying the viable seeds.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121284489","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758278
K. Dhriti, Maidul Islam, G. Kumar
We discuss an active control of the slow light properties in a parallel plate metallic terahertz (THz) plasmonic waveguide using dielectric material. The dispersion characteristics and group velocities are investigated using dielectric material of varying refractive index.
{"title":"Controlling the slow light properties in a corrugated parallel plate terahertz plasmonic waveguide","authors":"K. Dhriti, Maidul Islam, G. Kumar","doi":"10.1109/WRAP54064.2022.9758278","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758278","url":null,"abstract":"We discuss an active control of the slow light properties in a parallel plate metallic terahertz (THz) plasmonic waveguide using dielectric material. The dispersion characteristics and group velocities are investigated using dielectric material of varying refractive index.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126051138","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758182
D. M, Divya U, V. Sai
Small molecule detection is essential for various fields including clinical diagnostics, environmental monitoring, and drug discovery. Typically, a competitive assay is utilized due to the small size of the analyte, as opposed to a sensitive sandwich immunoassay format for their detection. Here, we demonstrate the highly sensitive plasmonic fiberoptic absorbance biosensor (P-FAB) for competitive assays with human IgG and gold nanoparticles (AuNP) as analyte and label, respectively. Numerical estimations for AuNP size and the proof-of-concept results are presented.
{"title":"Plasmonic Fiberoptic Competitive Immunosensor: Proof-of-concept Studies","authors":"D. M, Divya U, V. Sai","doi":"10.1109/WRAP54064.2022.9758182","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758182","url":null,"abstract":"Small molecule detection is essential for various fields including clinical diagnostics, environmental monitoring, and drug discovery. Typically, a competitive assay is utilized due to the small size of the analyte, as opposed to a sensitive sandwich immunoassay format for their detection. Here, we demonstrate the highly sensitive plasmonic fiberoptic absorbance biosensor (P-FAB) for competitive assays with human IgG and gold nanoparticles (AuNP) as analyte and label, respectively. Numerical estimations for AuNP size and the proof-of-concept results are presented.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133874585","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758248
Mohd Uwais, Ashish Bijalwan, V. Rastogi
In this paper, we present surface plasmon resonance (SPR) based temperature sensor using E7 liquid crystal. The proposed sensor structure consists of gold (Au) grating on Au substrate with liquid crystal cladding. The structure has been numerically simulated by using rigorous coupled wave analysis (RCWA). We show considerable shifting of SPR resonance with temperature variation above room temperature. This study shows the possibility of designing a temperature sensor using liquid crystal and Au grating.
{"title":"Liquid Crystal-Au Grating Assisted Surface Plasmon Resonance Based Temperature Sensor","authors":"Mohd Uwais, Ashish Bijalwan, V. Rastogi","doi":"10.1109/WRAP54064.2022.9758248","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758248","url":null,"abstract":"In this paper, we present surface plasmon resonance (SPR) based temperature sensor using E7 liquid crystal. The proposed sensor structure consists of gold (Au) grating on Au substrate with liquid crystal cladding. The structure has been numerically simulated by using rigorous coupled wave analysis (RCWA). We show considerable shifting of SPR resonance with temperature variation above room temperature. This study shows the possibility of designing a temperature sensor using liquid crystal and Au grating.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134388023","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758264
A. Garg, Sahil Shroff, Saurabh Suman, Janhvi Jaiswal, V. Janyani, M. Aly
In this work, we address the Time-Wavelength Division Multiplexed (TWDM) network with multilevel fault correction capability. The network can also serve geographically challenging locations, where either laying out of optical fiber is expensive, difficult or more prone to the faults. In such scenarios, the Free Space optics (FSO) and Radio Frequency (RF) links can be integrated with the fiber links.
在这项工作中，我们研究了具有多电平故障校正能力的时波分复用(TWDM)网络。该网络还可以服务于地理位置具有挑战性的地方，在这些地方，铺设光纤要么昂贵，要么困难，要么更容易出现故障。在这种情况下，可以将FSO (Free Space optics)和RF (Radio Frequency)链路与光纤链路集成在一起。
{"title":"Reliable TWDM Optical Network Architecture With Multilevel Fault Correction Capability","authors":"A. Garg, Sahil Shroff, Saurabh Suman, Janhvi Jaiswal, V. Janyani, M. Aly","doi":"10.1109/WRAP54064.2022.9758264","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758264","url":null,"abstract":"In this work, we address the Time-Wavelength Division Multiplexed (TWDM) network with multilevel fault correction capability. The network can also serve geographically challenging locations, where either laying out of optical fiber is expensive, difficult or more prone to the faults. In such scenarios, the Free Space optics (FSO) and Radio Frequency (RF) links can be integrated with the fiber links.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122154828","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758187
Rakesh Sarkar, A. Punjal, S. Prabhu, G. Kumar
We numerically investigated a broad-band polarization conversion of linearly polarized THz in a planar metasurface. The unit cell of the proposed MM configuration is comprised of a C-shaped resonator. We studied the co -and cross-polarization transmission of the proposed geometry for different polarizations of the incident light starting from 00 to 450 in steps of 150. Our design promises a cross-polarization conversion of 40% in a broad frequency spectrum of 1.3 to 3.0 THz when the structure is rotated by 450 with respect to the incident THz.
{"title":"Broad-band Terahertz Polarization Conversion in a Planar Metasurface","authors":"Rakesh Sarkar, A. Punjal, S. Prabhu, G. Kumar","doi":"10.1109/WRAP54064.2022.9758187","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758187","url":null,"abstract":"We numerically investigated a broad-band polarization conversion of linearly polarized THz in a planar metasurface. The unit cell of the proposed MM configuration is comprised of a C-shaped resonator. We studied the co -and cross-polarization transmission of the proposed geometry for different polarizations of the incident light starting from 00 to 450 in steps of 150. Our design promises a cross-polarization conversion of 40% in a broad frequency spectrum of 1.3 to 3.0 THz when the structure is rotated by 450 with respect to the incident THz.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123577334","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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