Pub Date : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758272
Pramod Mishra, Shekhar Saxena, Srinivas Munige, Anand Pandey, A. Mishra
We demonstrated successful transmission of 200G data with pre-FEC BER 3.3×10-s (post-FEC Error-free) at optimum launch power over 45 km of a 4-core Multi-Core fiber (MCF) in 125 μm common cladding. The transmission performance matchedwith traditional single core SMF.
{"title":"Successful 200G Transmission over 45 km of 4-Core single mode MCF","authors":"Pramod Mishra, Shekhar Saxena, Srinivas Munige, Anand Pandey, A. Mishra","doi":"10.1109/WRAP54064.2022.9758272","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758272","url":null,"abstract":"We demonstrated successful transmission of 200G data with pre-FEC BER 3.3×10-s (post-FEC Error-free) at optimum launch power over 45 km of a 4-core Multi-Core fiber (MCF) in 125 μm common cladding. The transmission performance matchedwith traditional single core SMF.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"34 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":"122171970","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/WRAP54064.2022.9758151
J. K. Shamlee, Hariharan Manoharan, V. Sai
This study reports a simple and tunable surfactant-less seed-mediated growth synthesis technique for Ag@Au core-shell nanoparticles coated over the U-bent fiber optic probes. The synthesis root involves the immobilization of Au seeds on the aminated probe surface (A520nm= 0.05). The core was formed by the ascorbic acid-mediated reduction of Ag around the Au seed. The shell was formed by a passive deposition of Au over the Ag core. The entire process was monitored in real-time to tune the plasmonic property. The evanescent wave absorbance peak of Ag core was at 470 nm (A470nm = 2) and Au shell at 560 nm (A560nm = 2). A high refractive index (RI) sensitivity of 27.5 ΔAbsorbance/RIU was obtained. The absence of surfactant allows easier functionalization as opposed to the conventional seed-mediated synthesis techniques with C-TAB capping and a stronger adhesion of the plasmonic nanostructures
{"title":"Surfactant-less Ag@Au decorated U-bent fiber optic probes for plasmonic sensing","authors":"J. K. Shamlee, Hariharan Manoharan, V. Sai","doi":"10.1109/WRAP54064.2022.9758151","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758151","url":null,"abstract":"This study reports a simple and tunable surfactant-less seed-mediated growth synthesis technique for Ag@Au core-shell nanoparticles coated over the U-bent fiber optic probes. The synthesis root involves the immobilization of Au seeds on the aminated probe surface (A520nm= 0.05). The core was formed by the ascorbic acid-mediated reduction of Ag around the Au seed. The shell was formed by a passive deposition of Au over the Ag core. The entire process was monitored in real-time to tune the plasmonic property. The evanescent wave absorbance peak of Ag core was at 470 nm (A470nm = 2) and Au shell at 560 nm (A560nm = 2). A high refractive index (RI) sensitivity of 27.5 ΔAbsorbance/RIU was obtained. The absence of surfactant allows easier functionalization as opposed to the conventional seed-mediated synthesis techniques with C-TAB capping and a stronger adhesion of the plasmonic nanostructures","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"10 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":"125477758","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/WRAP54064.2022.9758334
Anand Vp, Neethu Sasikumar, Prasanth Pp, D. Venkitesh, B. Srinivasan
We present an experimental test bed framework for pipeline intrusion monitoring which consists of distributed acoustic sensing deployed on a six core commercial unlit fiber-optic telecommunication infrastructure (dark fiber) laid along the pipeline for intrusion monitoring of both near-surface soil and in-depth intrusions. The framework was subjected to different types of intrusions (like heavy excavator movement, digging, axing, walking) and detection of these events through commercial Phase - OTDR is reported.
{"title":"Pipeline Intrusion Monitoring with Distributed Acoustic Sensing","authors":"Anand Vp, Neethu Sasikumar, Prasanth Pp, D. Venkitesh, B. Srinivasan","doi":"10.1109/WRAP54064.2022.9758334","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758334","url":null,"abstract":"We present an experimental test bed framework for pipeline intrusion monitoring which consists of distributed acoustic sensing deployed on a six core commercial unlit fiber-optic telecommunication infrastructure (dark fiber) laid along the pipeline for intrusion monitoring of both near-surface soil and in-depth intrusions. The framework was subjected to different types of intrusions (like heavy excavator movement, digging, axing, walking) and detection of these events through commercial Phase - OTDR is reported.","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":"131950546","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/WRAP54064.2022.9758302
A. Punjal, Shriganesh S. Prabhu
We numerically and experimentally examine the polarization-insensitive bandpass metamaterial designs generated using a Genetic Algorithm (GA). We discuss about the flow and structure of the genetic algorithm along with the fabrication details of the structure. We further show the input polarization independence in simulation and experiments are in close agreement.
{"title":"Evolutionary Algorithm based design approach for Metamaterials in Terahertz Regime","authors":"A. Punjal, Shriganesh S. Prabhu","doi":"10.1109/WRAP54064.2022.9758302","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758302","url":null,"abstract":"We numerically and experimentally examine the polarization-insensitive bandpass metamaterial designs generated using a Genetic Algorithm (GA). We discuss about the flow and structure of the genetic algorithm along with the fabrication details of the structure. We further show the input polarization independence in simulation and experiments are in close agreement.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"64 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":"131780186","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/WRAP54064.2022.9758263
Sudarshan Kumar Jain, V. Janyani, N. Gupta
In this paper cadmium telluride based, thin-film solar cell design using a 2D Photonic Crystal structure is proposed. CdTe technology is considered as having the best cost to efficiency ratio for the solar cells. A theoretical optical study and active layer thickness optimization has been presented using photonic crystal as a light-trapping structure placed at the back of the active layer. To reduce the cost of solar cell the active layer thickness is required to be kept small (~0.7 microns), but this results in weak absorption of incident spectrum. It is observed that these periodic structures help to enhance the absorption within the cell by enhancing the virtual thickness for high wavelength photons without letting the physical thickness of the active layer to increase. These structures result in improved scattering and coupling of incident photons. The proposed design has achieved the short circuit current of 29.25 mA/cm2 at AM 1.5 is achieved. Here all the parameters are optimized using rigorous coupled-wave analysis.
{"title":"Optical Studies of Cadmium Telluride based Solar Cell using Photonic Crystal as a back Reflector","authors":"Sudarshan Kumar Jain, V. Janyani, N. Gupta","doi":"10.1109/WRAP54064.2022.9758263","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758263","url":null,"abstract":"In this paper cadmium telluride based, thin-film solar cell design using a 2D Photonic Crystal structure is proposed. CdTe technology is considered as having the best cost to efficiency ratio for the solar cells. A theoretical optical study and active layer thickness optimization has been presented using photonic crystal as a light-trapping structure placed at the back of the active layer. To reduce the cost of solar cell the active layer thickness is required to be kept small (~0.7 microns), but this results in weak absorption of incident spectrum. It is observed that these periodic structures help to enhance the absorption within the cell by enhancing the virtual thickness for high wavelength photons without letting the physical thickness of the active layer to increase. These structures result in improved scattering and coupling of incident photons. The proposed design has achieved the short circuit current of 29.25 mA/cm2 at AM 1.5 is achieved. Here all the parameters are optimized using rigorous coupled-wave analysis.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"76 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":"128382349","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/WRAP54064.2022.9758288
Sonatan Das, D. Agarwal, A. Patnaik, V. Rao, T. Kundu
In this work, gold nanoparticles (AuNPs) binding dynamics have been studied on the amine-functionalized surface by the attenuated total reflectance (ATR) based evanescent wave absorption method. During binding, the real-time absorption peak of localized surface plasmon resonance (LSPR) was monitored. The immobilization time has been found to be decreased with the higher molar concentration of AuNPs. The density of immobilized nanoparticles was confirmed by SEM micrograph analysis. The concentration-dependent gold nanoparticle immobilization on a functionalized surface has been studied to explore and understand the role of selective LSPR surface for plasmonic-based photonic sensing platform development.
{"title":"Study of Gold nanoparticles binding dynamics on functionalized surface by ATR-evanescent wave absorption method","authors":"Sonatan Das, D. Agarwal, A. Patnaik, V. Rao, T. Kundu","doi":"10.1109/WRAP54064.2022.9758288","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758288","url":null,"abstract":"In this work, gold nanoparticles (AuNPs) binding dynamics have been studied on the amine-functionalized surface by the attenuated total reflectance (ATR) based evanescent wave absorption method. During binding, the real-time absorption peak of localized surface plasmon resonance (LSPR) was monitored. The immobilization time has been found to be decreased with the higher molar concentration of AuNPs. The density of immobilized nanoparticles was confirmed by SEM micrograph analysis. The concentration-dependent gold nanoparticle immobilization on a functionalized surface has been studied to explore and understand the role of selective LSPR surface for plasmonic-based photonic sensing platform development.","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":"130423657","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/WRAP54064.2022.9758341
Vamsi Krishna R N, A. Chaudhary, G. D., B. S., K. S
The paper reports the comparative study of generated efficiency of 0.5 and 1.5 THz bands from a BNA crystal using optical; rectification technique. We have employed 800 nm wavelength pulses of 35 fs duration at 1 kHz repetition rate obtained from a Ti: Sapphire laser amplifier for the generation of THz signal. The generated THz radiation without filters shows rapid growth as compared to 0.5 and 1.5 bands, respectively with respect to incident laser power tuned between 70–120 mW range, the efficiency of generated signal without filter, 0.5 and 1.5 band pass filters were 0.559 %, 9.3×10-2 % and 0.168%, respectively.
{"title":"Comparative Study of 0.5 and 1.5 Terahertz bands Efficiency from the N-benzyl-2-methyl-4-nitroaniline (BNA) Crystal","authors":"Vamsi Krishna R N, A. Chaudhary, G. D., B. S., K. S","doi":"10.1109/WRAP54064.2022.9758341","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758341","url":null,"abstract":"The paper reports the comparative study of generated efficiency of 0.5 and 1.5 THz bands from a BNA crystal using optical; rectification technique. We have employed 800 nm wavelength pulses of 35 fs duration at 1 kHz repetition rate obtained from a Ti: Sapphire laser amplifier for the generation of THz signal. The generated THz radiation without filters shows rapid growth as compared to 0.5 and 1.5 bands, respectively with respect to incident laser power tuned between 70–120 mW range, the efficiency of generated signal without filter, 0.5 and 1.5 band pass filters were 0.559 %, 9.3×10-2 % and 0.168%, respectively.","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":"133896561","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/WRAP54064.2022.9758260
Deependra Singh Gaur, A. K. Mishra
We numerically demonstrate the Airy pulse propagation in the dispersive nonlinear medium where the pulse dynamics is controlled by the external linear potential. We observe the soliton shedding from Airy pulse whose dynamics can be manipulated by the external potential.
{"title":"Ballistic soliton from Airy pulse","authors":"Deependra Singh Gaur, A. K. Mishra","doi":"10.1109/WRAP54064.2022.9758260","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758260","url":null,"abstract":"We numerically demonstrate the Airy pulse propagation in the dispersive nonlinear medium where the pulse dynamics is controlled by the external linear potential. We observe the soliton shedding from Airy pulse whose dynamics can be manipulated by the external potential.","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":"114795925","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/WRAP54064.2022.9758250
Rishika, Hitesh Mehta
We classify the events of distributed acoustic sensor by observing acoustic signals with image processing and statistical feature detection of RGB and grey image. We obtain data by introducing light pulse inside the fiber and collecting the Rayleigh back scattered signals. This data contains strain information of different events. We have used this image processing for classification of walking, digging, and cycling events.
{"title":"Study of Event Classification From Distributed Acoustic Sensor","authors":"Rishika, Hitesh Mehta","doi":"10.1109/WRAP54064.2022.9758250","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758250","url":null,"abstract":"We classify the events of distributed acoustic sensor by observing acoustic signals with image processing and statistical feature detection of RGB and grey image. We obtain data by introducing light pulse inside the fiber and collecting the Rayleigh back scattered signals. This data contains strain information of different events. We have used this image processing for classification of walking, digging, and cycling events.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"4 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":"128421329","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/WRAP54064.2022.9758332
Yash Deodhar, Priyanka Desai Kakade
Burst mode optical Regenerators (BMORs) have the ability to deal with input powers having large variations. This makes them a suitable candidate to be used in hybrid FSO systems due to the presence of atmospheric turbulence in the channel. With the aid of numerical modelling, the impact of a 2R BMOR cascade on the BER of a hybrid FSO-Fiber system has been investigated and the results have been compared to a continuous mode OR (CMOR) cascade. The effect of amplified spontaneous emission noise has also been incorporated in the model and its interaction with atmospheric turbulence has also been presented.
{"title":"BER Evaluation in the cascade of 2R BMORs in the presence of Atmospheric Turbulence","authors":"Yash Deodhar, Priyanka Desai Kakade","doi":"10.1109/WRAP54064.2022.9758332","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758332","url":null,"abstract":"Burst mode optical Regenerators (BMORs) have the ability to deal with input powers having large variations. This makes them a suitable candidate to be used in hybrid FSO systems due to the presence of atmospheric turbulence in the channel. With the aid of numerical modelling, the impact of a 2R BMOR cascade on the BER of a hybrid FSO-Fiber system has been investigated and the results have been compared to a continuous mode OR (CMOR) cascade. The effect of amplified spontaneous emission noise has also been incorporated in the model and its interaction with atmospheric turbulence has also been presented.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"9 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":"133845259","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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