Pub Date : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758343
Shalini Khare, A. Garg, V. Janyani
In this work, we propose and simulate an unidirectional Free Space Optical (FSO) or Optical Fiber (OF) link transmission with Wavelength Division Multiplexing (WDM) capability using ring and star topology. The data transmission is performed on the ring-based architecture while keeping the star-based architecture as a backup link and vice versa if fault occurs in OF or FSO links. For the proposed architecture, we compare FSO-WDM and OF-WDM network performance for ring & star-based architecture. The bit error rate (BER) performance is quite satisfactorily for feeder fiber (FF) length of $50text{km}$ and distributed fiber (DF)/FSO link length of $200mathrm{m}$. The architecture provides the reliable high-speed data transmission and may be useful for smart rural and urban communities.
{"title":"Ring-Star based transmission over Fiber/FSO Links for Reliable Access Network Services","authors":"Shalini Khare, A. Garg, V. Janyani","doi":"10.1109/WRAP54064.2022.9758343","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758343","url":null,"abstract":"In this work, we propose and simulate an unidirectional Free Space Optical (FSO) or Optical Fiber (OF) link transmission with Wavelength Division Multiplexing (WDM) capability using ring and star topology. The data transmission is performed on the ring-based architecture while keeping the star-based architecture as a backup link and vice versa if fault occurs in OF or FSO links. For the proposed architecture, we compare FSO-WDM and OF-WDM network performance for ring & star-based architecture. The bit error rate (BER) performance is quite satisfactorily for feeder fiber (FF) length of $50text{km}$ and distributed fiber (DF)/FSO link length of $200mathrm{m}$. The architecture provides the reliable high-speed data transmission and may be useful for smart rural and urban communities.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"65 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":"115946269","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/WRAP54064.2022.9758155
Anjali Sharma, Baljinder Singh Heera, Varsha Lohani, Y. N. Singh
The Space Division Multiplexed-Elastic Optical Network (SDM-EON) has many parallel spatial channels, increasing the spectral capacity manifolds. The routing constraints in SDM-EON tend to leave the spectrum fragmented, leading to inefficient resource utilization. This work presents a Fragmentation Aware-resource provisioning technique to mitigate fragmentation effects while keeping the crosstalk-related impairments within thresh-old values. The proposed approach performs better than the benchmark technique in terms of connection blocking ratio and network resource utilization.
{"title":"Fragmentation-Aware Routing, Core and Spectrum Assignment in Multi-Core Fiber based SDM-EON","authors":"Anjali Sharma, Baljinder Singh Heera, Varsha Lohani, Y. N. Singh","doi":"10.1109/WRAP54064.2022.9758155","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758155","url":null,"abstract":"The Space Division Multiplexed-Elastic Optical Network (SDM-EON) has many parallel spatial channels, increasing the spectral capacity manifolds. The routing constraints in SDM-EON tend to leave the spectrum fragmented, leading to inefficient resource utilization. This work presents a Fragmentation Aware-resource provisioning technique to mitigate fragmentation effects while keeping the crosstalk-related impairments within thresh-old values. The proposed approach performs better than the benchmark technique in terms of connection blocking ratio and network resource utilization.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"83 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":"132152345","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/WRAP54064.2022.9758225
Hamid Tebyanian
This paper presents a semi-device independent protocol for randomness generation built on the prepare-and-measure scenario with multiple input and outputs. Additionally, we introduce practical implementations (theory and experiment) in both continuous and discrete variable domains.
{"title":"Randomness Generation with Untrusted Devices","authors":"Hamid Tebyanian","doi":"10.1109/WRAP54064.2022.9758225","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758225","url":null,"abstract":"This paper presents a semi-device independent protocol for randomness generation built on the prepare-and-measure scenario with multiple input and outputs. Additionally, we introduce practical implementations (theory and experiment) in both continuous and discrete variable domains.","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":"132203920","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/WRAP54064.2022.9758388
Lakshmi Narayanan Venkatasubramani, R. D. Koilpillai, D. Venkitesh
We experimentally demonstrate the error-free performance of Quasi-Nyquist 1.024 Tbps 32 GBd PM-16QAM superchannel transmission with spectral efficiency of 7.1 b/s/Hz, using a 20 GHz bandwidth electro-optic modulator-based optical frequency comb with low phase noise.
{"title":"Experimental Demonstration of Quasi-Nyquist 1.024 Tbps Superchannel with 7.1 b/s/Hz Spectral Efficiency","authors":"Lakshmi Narayanan Venkatasubramani, R. D. Koilpillai, D. Venkitesh","doi":"10.1109/WRAP54064.2022.9758388","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758388","url":null,"abstract":"We experimentally demonstrate the error-free performance of Quasi-Nyquist 1.024 Tbps 32 GBd PM-16QAM superchannel transmission with spectral efficiency of 7.1 b/s/Hz, using a 20 GHz bandwidth electro-optic modulator-based optical frequency comb with low phase noise.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"17 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":"123684705","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/WRAP54064.2022.9758386
D. Hai
We propose a new architectural paradigm, entitled, optical-processing-enabled for optical networks by leveraging the optical signal processing capabilities at intermediate nodes. The past two decades have witnessed the maturing of optical-bypass networking from a visionary concept to a dominant technology adopted by many carriers in both metro and backbone networks. However, in optical-bypass networking, the fact that two (or more) lightpaths crossing intermediate nodes should be maximally separated to avoid interference which is consid-ered as unwanted noise have turned out to be a fundamental limitation. In light of tremendous progresses in optical signal processing permitting precisely controlled interference between optical channels, superposition of transiting lightpaths traversing the same optical node pave the way for redefining the optical network architecture. In this context, we discuss two processing techniques, that is, optical aggregation (de-aggregation) and optical encoding (decoding) that appear to be technologically ripe for incorporating to optical nodes. Furthermore, we call for a new framework, namely, optical network design and planning 2.0, to maximize the potential benefits enabled by optical-processing networking paradigm.
{"title":"If Optical-processing-enabled Networks Come","authors":"D. Hai","doi":"10.1109/WRAP54064.2022.9758386","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758386","url":null,"abstract":"We propose a new architectural paradigm, entitled, optical-processing-enabled for optical networks by leveraging the optical signal processing capabilities at intermediate nodes. The past two decades have witnessed the maturing of optical-bypass networking from a visionary concept to a dominant technology adopted by many carriers in both metro and backbone networks. However, in optical-bypass networking, the fact that two (or more) lightpaths crossing intermediate nodes should be maximally separated to avoid interference which is consid-ered as unwanted noise have turned out to be a fundamental limitation. In light of tremendous progresses in optical signal processing permitting precisely controlled interference between optical channels, superposition of transiting lightpaths traversing the same optical node pave the way for redefining the optical network architecture. In this context, we discuss two processing techniques, that is, optical aggregation (de-aggregation) and optical encoding (decoding) that appear to be technologically ripe for incorporating to optical nodes. Furthermore, we call for a new framework, namely, optical network design and planning 2.0, to maximize the potential benefits enabled by optical-processing networking paradigm.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"31 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":"123706137","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/WRAP54064.2022.9758312
R. Muralekrishnan, Neethu Sasikumar, P. P, D. Venkitesh, B. Srinivasan
We report the effect of pulse width, pulse separation, modulation depth and modulation frequency on sensor performance parameters such as crosstalk, spatial resolution, and sensitivity for a Phase Generated Carrier based Distributed Acoustic Sensor.
{"title":"Investigation of the Performance Limits of PGC-based Distributed Acoustic Sensing","authors":"R. Muralekrishnan, Neethu Sasikumar, P. P, D. Venkitesh, B. Srinivasan","doi":"10.1109/WRAP54064.2022.9758312","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758312","url":null,"abstract":"We report the effect of pulse width, pulse separation, modulation depth and modulation frequency on sensor performance parameters such as crosstalk, spatial resolution, and sensitivity for a Phase Generated Carrier based Distributed Acoustic Sensor.","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":"129154276","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/WRAP54064.2022.9758297
Yerranna H, Krishna Kumar, S. L. Sabat
We present a theoretical and experimental analysis of the ultra pure signal generation using simple directly mod-ulation based Opto-Electronic Oscillator (DMOEO) at 2.4GHz carrier frequency. Directly modulated Semiconductor DFB laser is used in non-linear conversion of RF signal into optical signal rather than external intensity modulator. Laser diode is considered as a dimensionless nonlinear transfer function to drive the pump current of the oscillator. Pump current is the combination of laser bias current and feedback RF current that drives the oscillator. Theoretical analysis includes the different input noise parameters in calculating the final phase noise of the DMOEO. Same model is simulated and implemented in hardware with a 1550 nm DFB laser. Our simulation results are shown to be in good agreement with experimental measurements. At 2.41GHz carrier frequency the phase noise of the implemented OEO is coming out to be −109 dBc/Hz at 1kHz offset frequency.
{"title":"Ultra Pure Signal Generation using Simple Direct Modulation Optoelectronic Oscillator","authors":"Yerranna H, Krishna Kumar, S. L. Sabat","doi":"10.1109/WRAP54064.2022.9758297","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758297","url":null,"abstract":"We present a theoretical and experimental analysis of the ultra pure signal generation using simple directly mod-ulation based Opto-Electronic Oscillator (DMOEO) at 2.4GHz carrier frequency. Directly modulated Semiconductor DFB laser is used in non-linear conversion of RF signal into optical signal rather than external intensity modulator. Laser diode is considered as a dimensionless nonlinear transfer function to drive the pump current of the oscillator. Pump current is the combination of laser bias current and feedback RF current that drives the oscillator. Theoretical analysis includes the different input noise parameters in calculating the final phase noise of the DMOEO. Same model is simulated and implemented in hardware with a 1550 nm DFB laser. Our simulation results are shown to be in good agreement with experimental measurements. At 2.41GHz carrier frequency the phase noise of the implemented OEO is coming out to be −109 dBc/Hz at 1kHz offset frequency.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"39 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":"128827835","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/WRAP54064.2022.9758357
N. T. Venkat, Swetha Menon, D. M, A. Gowri, S. Usha, V. Sai
Silica and polymeric (GOF and POF) based U-bent fiber optic sensor probes are an excellent candidate for low-cost refractive index (RI) based sensors. GOF is expensive and fragile but stable, while POF is contradictory. To evaluate the relative advantages and limitations of the GOF and POF sensor probes with respect to RI measurements, a detailed study is carried out. Measurement reproducibility and temperature stability of the RI sensor probes were investigated using a compact, hand-held fiber-optic refractometer for real-time monitoring, developed in-house. POF probes show a wider measurement range with higher deviation and poorer temperature stability with respect to GOF.
{"title":"Silica and polymeric fiber optic refractometric sensor probes: Performance evaluation","authors":"N. T. Venkat, Swetha Menon, D. M, A. Gowri, S. Usha, V. Sai","doi":"10.1109/WRAP54064.2022.9758357","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758357","url":null,"abstract":"Silica and polymeric (GOF and POF) based U-bent fiber optic sensor probes are an excellent candidate for low-cost refractive index (RI) based sensors. GOF is expensive and fragile but stable, while POF is contradictory. To evaluate the relative advantages and limitations of the GOF and POF sensor probes with respect to RI measurements, a detailed study is carried out. Measurement reproducibility and temperature stability of the RI sensor probes were investigated using a compact, hand-held fiber-optic refractometer for real-time monitoring, developed in-house. POF probes show a wider measurement range with higher deviation and poorer temperature stability with respect to GOF.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"12 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":"129060483","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/WRAP54064.2022.9758180
S. Rane, K. Devi, D. R. Chowdhury
Suitably designed metasurfaces can introduce phase discontinuity to the transmitted or reflected electromagnetic waves. Consequently, the transmitting wave can bend anomalously in a desired angle. Here, we demonstrate a metasurface in terahertz regime with super unit cell consisting of multiple micro-resonators exhibiting anomalous refraction. Careful modification of the inter-resonator distances inside the unit cell can lead to variable bending angle for the anomalously refracted wave.
{"title":"Variable Angle Anomalous Refraction Employing Terahertz Metasurfaces","authors":"S. Rane, K. Devi, D. R. Chowdhury","doi":"10.1109/WRAP54064.2022.9758180","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758180","url":null,"abstract":"Suitably designed metasurfaces can introduce phase discontinuity to the transmitted or reflected electromagnetic waves. Consequently, the transmitting wave can bend anomalously in a desired angle. Here, we demonstrate a metasurface in terahertz regime with super unit cell consisting of multiple micro-resonators exhibiting anomalous refraction. Careful modification of the inter-resonator distances inside the unit cell can lead to variable bending angle for the anomalously refracted wave.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"31 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":"127819917","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/WRAP54064.2022.9758231
B. M, Subhradeep Pal, Kannan Ramaswamy, P. Pattnaik
Design and analysis of optical MEMS accelerometer based on waveguide Bragg grating integrated with circular diaphragm with embossed centre mass for vibration measurement are presented in this paper. A waveguide Bragg grating is positioned on the top surface of the embossed proof-mass to maximize strain sensitivity. A reference grating on the substrate is used to compensate for the temperature dependence of Bragg peak. Due to excellent linear response, sensitivity of −180 pm/kG and a natural frequency of 4.8 kHz, the proposed accelerometer is suitable for vibration measurement.
{"title":"Waveguide Bragg Grating Optical MEMS Accelerometer based on Circular Diaphragm","authors":"B. M, Subhradeep Pal, Kannan Ramaswamy, P. Pattnaik","doi":"10.1109/WRAP54064.2022.9758231","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758231","url":null,"abstract":"Design and analysis of optical MEMS accelerometer based on waveguide Bragg grating integrated with circular diaphragm with embossed centre mass for vibration measurement are presented in this paper. A waveguide Bragg grating is positioned on the top surface of the embossed proof-mass to maximize strain sensitivity. A reference grating on the substrate is used to compensate for the temperature dependence of Bragg peak. Due to excellent linear response, sensitivity of −180 pm/kG and a natural frequency of 4.8 kHz, the proposed accelerometer is suitable for vibration measurement.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"144 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":"116386869","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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