Pub Date : 2019-09-01DOI: 10.1109/OGC.2019.8925043
Xueyu Wang, Huixian Zhang, Tiesheng Wu, Yiping Wang, Yiying Wang, W. Cao
In this letter, a surface plasmon resonance (SPR) sensor model based on all-solid birefringent photonic crystal fiber (PCF) is showed. This fiber biosensor configuration utilizes two large media rods in the x-axis to introduce birefringence into the structure and solves analyte filling problems in PCF-based SPR sensor by side-polishing fiber. We investigate the effect of the radius of the big media rods and the polishing depth on the performance of the SPR sensing, and confirm the relationship between wavelength and phase of SPR fiber sensor sensitivity. This investigation enables us to evaluate the probability of all-solid D-shaped PCF application to develop high sensitivity SPR sensors for chemical, biological, and biochemical sensing.
{"title":"A Surface Plasmon Resonance Sensor Based on D-Shaped All-Solid Photonic Crystal Fiber","authors":"Xueyu Wang, Huixian Zhang, Tiesheng Wu, Yiping Wang, Yiying Wang, W. Cao","doi":"10.1109/OGC.2019.8925043","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925043","url":null,"abstract":"In this letter, a surface plasmon resonance (SPR) sensor model based on all-solid birefringent photonic crystal fiber (PCF) is showed. This fiber biosensor configuration utilizes two large media rods in the x-axis to introduce birefringence into the structure and solves analyte filling problems in PCF-based SPR sensor by side-polishing fiber. We investigate the effect of the radius of the big media rods and the polishing depth on the performance of the SPR sensing, and confirm the relationship between wavelength and phase of SPR fiber sensor sensitivity. This investigation enables us to evaluate the probability of all-solid D-shaped PCF application to develop high sensitivity SPR sensors for chemical, biological, and biochemical sensing.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131302782","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 : 2019-09-01DOI: 10.1109/OGC.2019.8925080
Qiang Sun, Haoran Li, Yang Zhou
With the rapid growth of traffic in today's society, the original optical network based on wavelength division multiplexing is more and more difficult to meet the current traffic demand because of its large spectral granularity, so the elastic optical network came into being. In elastic optical networks, the most important research issue is the allocation of spectrum and routing. This paper proposes a joint allocation method of spectrum routing based on access blocking rate. The value of spectrum slot is measured by the access blocking rate of spectrum slot, and it is converted into the weight of the link. The weighted shortest path algorithm is used to find the appropriate allocation Path; and find the best allocated spectrum slot on the assigned path by a posteriori access blocking rate. Then considering the shortcomings of the above algorithm without considering the peripheral link, a spectrum routing joint allocation algorithm that considers the neighboring link a posteriori access blocking rate is proposed. Finally, the above two algorithms are compared through experiments. Compared with the classic first fit algorithm, more than 10% service blocking rate is reduced in both USNET and NSFNET network topologies.
{"title":"Spectrum and Routing Allocation Method for Elastic Optical Networks Based on Posterior Blocking Probability Measurement","authors":"Qiang Sun, Haoran Li, Yang Zhou","doi":"10.1109/OGC.2019.8925080","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925080","url":null,"abstract":"With the rapid growth of traffic in today's society, the original optical network based on wavelength division multiplexing is more and more difficult to meet the current traffic demand because of its large spectral granularity, so the elastic optical network came into being. In elastic optical networks, the most important research issue is the allocation of spectrum and routing. This paper proposes a joint allocation method of spectrum routing based on access blocking rate. The value of spectrum slot is measured by the access blocking rate of spectrum slot, and it is converted into the weight of the link. The weighted shortest path algorithm is used to find the appropriate allocation Path; and find the best allocated spectrum slot on the assigned path by a posteriori access blocking rate. Then considering the shortcomings of the above algorithm without considering the peripheral link, a spectrum routing joint allocation algorithm that considers the neighboring link a posteriori access blocking rate is proposed. Finally, the above two algorithms are compared through experiments. Compared with the classic first fit algorithm, more than 10% service blocking rate is reduced in both USNET and NSFNET network topologies.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129384403","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 : 2019-09-01DOI: 10.1109/OGC.2019.8925082
Chenggang Guan, Yuzhen Deng, Xiaomei Chen
Heavy doping of epitaxial tunnel junction layers is of interest in vertical hetero-structure laser photovoltaic cell in recent years. In this paper, the performance characteristic of AlGaAs/GaAs tunnel junctions with silicon(Si) and tellurium (Te) doped were presented, respectively. Compared to Si doping, the tunnel junction diode doped with Te doping revealed lower tunneling resistance and better performance. A comparative study using both Si and Te doping in the AlGaAs/GaAs tunnel junction of six junctions monochromatic laser photovoltaic cells also showed a higher photoelectric efficiency for Te doping. Therefore, the tunnel junction with Te doping can be considered to improve the performance of monochromatic laser cells.
{"title":"The Comparative Study of Using Si and Te Doping Tunnel Junction of Vertical Hetero-structure Laser Photovoltaic Cell","authors":"Chenggang Guan, Yuzhen Deng, Xiaomei Chen","doi":"10.1109/OGC.2019.8925082","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925082","url":null,"abstract":"Heavy doping of epitaxial tunnel junction layers is of interest in vertical hetero-structure laser photovoltaic cell in recent years. In this paper, the performance characteristic of AlGaAs/GaAs tunnel junctions with silicon(Si) and tellurium (Te) doped were presented, respectively. Compared to Si doping, the tunnel junction diode doped with Te doping revealed lower tunneling resistance and better performance. A comparative study using both Si and Te doping in the AlGaAs/GaAs tunnel junction of six junctions monochromatic laser photovoltaic cells also showed a higher photoelectric efficiency for Te doping. Therefore, the tunnel junction with Te doping can be considered to improve the performance of monochromatic laser cells.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132311671","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}
High-energy ultra-fast pulse light source has been widely used in laser medical, environmental monitoring, optical communication, photon spectroscopy and other fields. Compared with conventional soliton fiber lasers, self-similar pulsed fiber lasers can produce higher energy optical pulses without optical wave splitting. In this paper, we have optimized design on dispersion-managed high energy self-similar pulse in thulium doped fiber laser by using numerical simulation method. It is found that, when fixing the filter bandwidth, with the increase of the cavity length and the pump power, the output power will increase. At the same time, Further more, with the shorter cavity length and lower pump power, to obtain a high energy self-similar pulse, a filter with broader bandwidth must be used. By optimizing cavity parameters, and choose the cavity length to be 362 cm, corresponding dispersion value of 0.2224 (ps2), filter bandwidth to be 32 nm, the small signal gain g0 to be 51 dB, pulses with pulse energy up to 32.75 nJ, dechirp pulse width of 142.64 fs have been obtained.
{"title":"Optimal Design of High Energy Similariton Thulium-Doped Fiber Lasers","authors":"Lisha Liu, Xingliang Li, Shumin Zhang, Jingmin Liu, Liangliang Chen, Chaoran Wang, Yaxing Xin, Zihao Guo, Zhenjun Yang","doi":"10.1109/OGC.2019.8925041","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925041","url":null,"abstract":"High-energy ultra-fast pulse light source has been widely used in laser medical, environmental monitoring, optical communication, photon spectroscopy and other fields. Compared with conventional soliton fiber lasers, self-similar pulsed fiber lasers can produce higher energy optical pulses without optical wave splitting. In this paper, we have optimized design on dispersion-managed high energy self-similar pulse in thulium doped fiber laser by using numerical simulation method. It is found that, when fixing the filter bandwidth, with the increase of the cavity length and the pump power, the output power will increase. At the same time, Further more, with the shorter cavity length and lower pump power, to obtain a high energy self-similar pulse, a filter with broader bandwidth must be used. By optimizing cavity parameters, and choose the cavity length to be 362 cm, corresponding dispersion value of 0.2224 (ps2), filter bandwidth to be 32 nm, the small signal gain g0 to be 51 dB, pulses with pulse energy up to 32.75 nJ, dechirp pulse width of 142.64 fs have been obtained.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"283 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121824436","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 : 2019-09-01DOI: 10.1109/OGC.2019.8925018
Aayush Madan, V. Paulose, Wonkeun Chang, P. Shum, J. Hao
In this article, we present the sensing charac-teristics of a fiber Bragg grating (FBG) based Fabry-Perot (FP) structure in an acrylate coated biconical tapered fiber. The fiber-diameter was tapered down to $mathbf{70} mu mathbf{m}$ using flame brushing technique followed by point-by-point writing of the FP structure within the fiber core using infrared femtosecond laser pulse irradiation. The sensing structure consists of two identical gratings separated by a small gap. The strain characteristics, ranging up to $3440 muvarepsilon$, and the temperature characteristics, ranging up to 225 °C, have been investigated. The sensing sensitivities for strain and temperature were found out to be $2.32 mathrm{pm}/muvarepsilon$ and 8.86 pm/°C, respectively.
本文研究了丙烯酸酯包覆双锥锥形光纤中基于光纤布拉格光栅(FBG)的Fabry-Perot (FP)结构的传感特性。采用火焰涂刷技术将光纤直径逐渐减小到$mathbf{70} mu mathbf{m}$，然后使用红外飞秒激光脉冲照射对光纤芯内的FP结构进行逐点写入。传感结构由两个相同的光栅组成，由一个小间隙分开。研究了应变特性(可达$3440 muvarepsilon$)和温度特性(可达225℃)。对应变和温度的传感灵敏度分别为$2.32 mathrm{pm}/muvarepsilon$和8.86 pm/°C。
{"title":"Sensing Characteristics of a Grating-Based Fabry-Perot Structure in a Biconical Tapered Fiber","authors":"Aayush Madan, V. Paulose, Wonkeun Chang, P. Shum, J. Hao","doi":"10.1109/OGC.2019.8925018","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925018","url":null,"abstract":"In this article, we present the sensing charac-teristics of a fiber Bragg grating (FBG) based Fabry-Perot (FP) structure in an acrylate coated biconical tapered fiber. The fiber-diameter was tapered down to $mathbf{70} mu mathbf{m}$ using flame brushing technique followed by point-by-point writing of the FP structure within the fiber core using infrared femtosecond laser pulse irradiation. The sensing structure consists of two identical gratings separated by a small gap. The strain characteristics, ranging up to $3440 muvarepsilon$, and the temperature characteristics, ranging up to 225 °C, have been investigated. The sensing sensitivities for strain and temperature were found out to be $2.32 mathrm{pm}/muvarepsilon$ and 8.86 pm/°C, respectively.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124017036","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 : 2019-09-01DOI: 10.1109/OGC.2019.8925174
K. Rong, H. Cai, Xiaoxu Liu, Juhong Han, Wei Zhang, G. An, Hongyuan Wang, Lei Wang, You Wang
In this study, we construct a theoretical model to analyze the output characteristics of a pulsed Ho3+:BaY2f8 (Ho3+:BYF) laser by taking both energy transfer up-conversion (ETU) and cross relaxation (CR) processes into account. The influences of the pump energy, pulse width, reflectance of an output coupler (OC), crystal length, and Ho3+ doping concentration on the physical performances are investigated in detail for an end-pumped structure. The calculation results reveal that the proper length of a Ho3+:BaY2f8crystal is from 5 to 10 mm for the Ho3+ doping concentration of 10–40 at.%. We also deduce that a high output can be obtained when the Ho3+ doping concentration is selected as 30 at.%. It has been demonstrated that the relaxation oscillation of a Ho:BYF laser can be observed for a pulsed pump source. We can see that the threshold peak power of a pump light source decreases with the increase of the pulse width. The conclusions might be useful for the realization of a pulsed mid-infrared Ho3+: BYF laser.
{"title":"Theoretical Evaluation of a Pulsed Mid-Infrared Ho3+:BaY2F8 Laser","authors":"K. Rong, H. Cai, Xiaoxu Liu, Juhong Han, Wei Zhang, G. An, Hongyuan Wang, Lei Wang, You Wang","doi":"10.1109/OGC.2019.8925174","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925174","url":null,"abstract":"In this study, we construct a theoretical model to analyze the output characteristics of a pulsed Ho<sup>3+</sup>:BaY<inf>2</inf>f<inf>8</inf> (Ho<sup>3+</sup>:BYF) laser by taking both energy transfer up-conversion (ETU) and cross relaxation (CR) processes into account. The influences of the pump energy, pulse width, reflectance of an output coupler (OC), crystal length, and Ho<sup>3+</sup> doping concentration on the physical performances are investigated in detail for an end-pumped structure. The calculation results reveal that the proper length of a Ho<sup>3+</sup>:BaY<inf>2</inf>f<inf>8</inf>crystal is from 5 to 10 mm for the Ho<sup>3+</sup> doping concentration of 10–40 at.%. We also deduce that a high output can be obtained when the Ho<sup>3+</sup> doping concentration is selected as 30 at.%. It has been demonstrated that the relaxation oscillation of a Ho:BYF laser can be observed for a pulsed pump source. We can see that the threshold peak power of a pump light source decreases with the increase of the pulse width. The conclusions might be useful for the realization of a pulsed mid-infrared Ho<sup>3+</sup>: BYF laser.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116272723","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 : 2019-09-01DOI: 10.1109/OGC.2019.8925226
Kangkang Liu, Hongpan Xu, Zhiyang Li, Guanghui Wang
Chemiluminescence detection has been used to determine the concentration of nucleic acid virus. At present, chemiluminescence detection is mostly a large, immovable chemiluminescence detection instrument, and some steps to extract supernatant still need to be completed manually. To solve this problem, a centrifugal chemiluminescence detection system was established. The CMOS detector with high sensitivity and small volume was combined with centrifugal force micro-fluidic platform to realize the integration process of sample reaction and detection. The system has been successfully applied to the detection of nucleic acid virus (H7N9). The detection process of nucleic acid virus (H7N9) completed in the original laboratory was designed on a microfluidic chip. The flow direction of liquid is driven by centrifugal force platform, and the whole reaction process is controlled by logic components on the chip. Finally, the luminous intensity is detected by CMOS detector.
{"title":"A Centrifugal Chemiluminescence Detection Platform and Its Application for Nucleic Acid Virus (H7N9)","authors":"Kangkang Liu, Hongpan Xu, Zhiyang Li, Guanghui Wang","doi":"10.1109/OGC.2019.8925226","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925226","url":null,"abstract":"Chemiluminescence detection has been used to determine the concentration of nucleic acid virus. At present, chemiluminescence detection is mostly a large, immovable chemiluminescence detection instrument, and some steps to extract supernatant still need to be completed manually. To solve this problem, a centrifugal chemiluminescence detection system was established. The CMOS detector with high sensitivity and small volume was combined with centrifugal force micro-fluidic platform to realize the integration process of sample reaction and detection. The system has been successfully applied to the detection of nucleic acid virus (H7N9). The detection process of nucleic acid virus (H7N9) completed in the original laboratory was designed on a microfluidic chip. The flow direction of liquid is driven by centrifugal force platform, and the whole reaction process is controlled by logic components on the chip. Finally, the luminous intensity is detected by CMOS detector.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133264065","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 : 2019-09-01DOI: 10.1109/OGC.2019.8925246
Xiaojuan Chen, Chang Qu
Low-frequency noise has always been a fast and non-destructive tool to characterise the performance and quality of materials and electrical devices. In this paper, a nondestructive method of predicting reliability was introduced for 980 nm GaAs based semiconductor laser diodes. Measurement and analysis were carried out for the noise and transport characteristics of forward voltage biases. The results demonstrated a close relationship between LD quality and the characteristic parameters of low-frequency noise such as frequency exponent, noise intensity and amplitude.
{"title":"Quality Assessment of 980 nm GaAs Based Laser Diodes with Use of Low-Frequency Noise Measurements","authors":"Xiaojuan Chen, Chang Qu","doi":"10.1109/OGC.2019.8925246","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925246","url":null,"abstract":"Low-frequency noise has always been a fast and non-destructive tool to characterise the performance and quality of materials and electrical devices. In this paper, a nondestructive method of predicting reliability was introduced for 980 nm GaAs based semiconductor laser diodes. Measurement and analysis were carried out for the noise and transport characteristics of forward voltage biases. The results demonstrated a close relationship between LD quality and the characteristic parameters of low-frequency noise such as frequency exponent, noise intensity and amplitude.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134372374","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 : 2019-09-01DOI: 10.1109/OGC.2019.8925036
Xinru Guan, Meng Jiang, Fu Yang, Yongai Yu, Juan Chen
With the development of Raman spectroscopy, low frequency Raman detection has become increasingly important in drug analysis. In order to realize the detection of the low-frequency Raman spectral region of the pharmaceutical raw materials and make the Raman spectrometer portable, our designed a portable low-frequency Raman spectrometer based on the Raman optical probe system. We have completed the assembly of the prototype, the instrument size is about $260mathrm{mm}times 185mathrm{mm}times 60mathrm{mm}$, with high portability. The Raman spectrometer is based on a single monochromator, using two beam splitters for laser beam alignment, combined with a single Longpass filter realized down to 25 cm−1Raman signal measurement. The system successfully detected the low-frequency Raman spectra of the pharmaceutical raw materials hydroxychloroquine sulfate and TiO2, and realized the discrimination of four crystal forms by low-frequency Raman spectroscopy of four different crystal forms of aripiprazole. The practicability of the Low Frequency Raman spectrometer was verified by drug detection.
{"title":"Portable Low Frequency Raman Spectrometer Based on Fliter","authors":"Xinru Guan, Meng Jiang, Fu Yang, Yongai Yu, Juan Chen","doi":"10.1109/OGC.2019.8925036","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925036","url":null,"abstract":"With the development of Raman spectroscopy, low frequency Raman detection has become increasingly important in drug analysis. In order to realize the detection of the low-frequency Raman spectral region of the pharmaceutical raw materials and make the Raman spectrometer portable, our designed a portable low-frequency Raman spectrometer based on the Raman optical probe system. We have completed the assembly of the prototype, the instrument size is about $260mathrm{mm}times 185mathrm{mm}times 60mathrm{mm}$, with high portability. The Raman spectrometer is based on a single monochromator, using two beam splitters for laser beam alignment, combined with a single Longpass filter realized down to 25 cm−1Raman signal measurement. The system successfully detected the low-frequency Raman spectra of the pharmaceutical raw materials hydroxychloroquine sulfate and TiO2, and realized the discrimination of four crystal forms by low-frequency Raman spectroscopy of four different crystal forms of aripiprazole. The practicability of the Low Frequency Raman spectrometer was verified by drug detection.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134312420","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 : 2019-09-01DOI: 10.1109/OGC.2019.8925205
Chen Chen, Pengfei Du, Helin Yang, W. Zhong, X. Deng, Yanbing Yang
In this paper, we numerically and experimentally demonstrate an inter-cell interference (ICI) mitigation scheme for multi-cell visible light communication (MC-VLC) systems using optimized angle diversity receivers (ADRs). An ADR usually consists of a non-tilted top detector and several tilted side detectors. We optimize the performance of the ADR by choosing an optimal tilting angle of each side detector. In comparison to the conventional frequency allocation-based ICI mitigation schemes, the optimized ADR-based ICI mitigation scheme enjoys three main advantages: 1) high cell capacity; 2) improved signal-to-interference-and-noise ratio (SINR); 3) reduced SINR fluctuation. The feasibility of using optimized ADRs for ICI mitigation in indoor MC-VLC systems is verified by both numerical analysis and experiments. Experimental results show that a two-cell VLC system using an optimized ADR can achieve an SINR improvement of 18.6 dB and a 1-dB SINR fluctuation, compared with the same VLC system using a single-element receiver without angle diversity.
{"title":"Demonstration of Inter-cell Interference Mitigation in Multi-cell VLC Systems Using Optimized Angle Diversity Receiver","authors":"Chen Chen, Pengfei Du, Helin Yang, W. Zhong, X. Deng, Yanbing Yang","doi":"10.1109/OGC.2019.8925205","DOIUrl":"https://doi.org/10.1109/OGC.2019.8925205","url":null,"abstract":"In this paper, we numerically and experimentally demonstrate an inter-cell interference (ICI) mitigation scheme for multi-cell visible light communication (MC-VLC) systems using optimized angle diversity receivers (ADRs). An ADR usually consists of a non-tilted top detector and several tilted side detectors. We optimize the performance of the ADR by choosing an optimal tilting angle of each side detector. In comparison to the conventional frequency allocation-based ICI mitigation schemes, the optimized ADR-based ICI mitigation scheme enjoys three main advantages: 1) high cell capacity; 2) improved signal-to-interference-and-noise ratio (SINR); 3) reduced SINR fluctuation. The feasibility of using optimized ADRs for ICI mitigation in indoor MC-VLC systems is verified by both numerical analysis and experiments. Experimental results show that a two-cell VLC system using an optimized ADR can achieve an SINR improvement of 18.6 dB and a 1-dB SINR fluctuation, compared with the same VLC system using a single-element receiver without angle diversity.","PeriodicalId":381981,"journal":{"name":"2019 IEEE 4th Optoelectronics Global Conference (OGC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133116694","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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