Pub Date : 2022-12-06DOI: 10.1109/OGC55558.2022.10050903
Jiayu Lu, L. Kong, X. Xiao
Nonlinear dynamics of pulse propagation in single-mode fiber have been investigated extensively. Recently, with the wide use of multimode fiber in optical technologies such as fiber lasers, imaging, optical fiber communication systems etc., multimode fiber has gradually received attention. Therefore, the investigation of nonlinear pulse propagation in multimode fibers becomes more and more important. However, the numerical simulation of nonlinear pulse propagation in multimode fibers is a thorny problem. In this Presentation, we compare three simulation algorithms for the nonlinear propagation in multimode fibers. The first algorithm is Massively Parallel Algorithm, based on the Generalized Multimode Nonlinear Schrodinger equation (GMMNLSE); the second is, three-dimensional (3D) algorithm, based on the traditional Generalized Nonlinear Schrodinger Equation (GNLSE), which describes the propagation of whole 3D optical field in multimode fibers; and the third is Radial Coordinate (RC) algorithm, based on the RC GNLSE which is simplified from the GNLSE by the Hankel Transform. These three algorithms are compared from the aspects of operation speed, numerical error and applicable scenarios, and their advantages and disadvantages are analyzed. This investigation will provide some guidelines and suggestions for the numerical investigations of nonlinear pulse propagation in multimode fibers, including the fields of optical fiber communications with multimode fibers, nonlinear fiber optics, spatiotemporal mode-locking in multimode cavities, etc.
{"title":"Comparison of the Simulation Algorithms for Nonlinear Pulse Propagation in Multimode Fibers","authors":"Jiayu Lu, L. Kong, X. Xiao","doi":"10.1109/OGC55558.2022.10050903","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050903","url":null,"abstract":"Nonlinear dynamics of pulse propagation in single-mode fiber have been investigated extensively. Recently, with the wide use of multimode fiber in optical technologies such as fiber lasers, imaging, optical fiber communication systems etc., multimode fiber has gradually received attention. Therefore, the investigation of nonlinear pulse propagation in multimode fibers becomes more and more important. However, the numerical simulation of nonlinear pulse propagation in multimode fibers is a thorny problem. In this Presentation, we compare three simulation algorithms for the nonlinear propagation in multimode fibers. The first algorithm is Massively Parallel Algorithm, based on the Generalized Multimode Nonlinear Schrodinger equation (GMMNLSE); the second is, three-dimensional (3D) algorithm, based on the traditional Generalized Nonlinear Schrodinger Equation (GNLSE), which describes the propagation of whole 3D optical field in multimode fibers; and the third is Radial Coordinate (RC) algorithm, based on the RC GNLSE which is simplified from the GNLSE by the Hankel Transform. These three algorithms are compared from the aspects of operation speed, numerical error and applicable scenarios, and their advantages and disadvantages are analyzed. This investigation will provide some guidelines and suggestions for the numerical investigations of nonlinear pulse propagation in multimode fibers, including the fields of optical fiber communications with multimode fibers, nonlinear fiber optics, spatiotemporal mode-locking in multimode cavities, etc.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126449591","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 : 2022-12-06DOI: 10.1109/OGC55558.2022.10051042
Han Liu, Jianping Wang, Huimin Lu
Visible light communication technology is a communication system that uses light-emitting diodes as the emission source and electronic devices equipped with cameras or photodiodes as the receiving end. Optical camera communication, also known as optical imaging communication, belongs to a special kind of visible light communication, using image sensors as receivers. In this paper, an LED array control module for optical camera communication is designed, which realizes the data generation and signal transmission functions of the transmitter of the optical imaging communication system, and performs signal output and data transmission tests in indoor and outdoor environments.
{"title":"Design of LED Array Control Module for Optical Camera Communication","authors":"Han Liu, Jianping Wang, Huimin Lu","doi":"10.1109/OGC55558.2022.10051042","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051042","url":null,"abstract":"Visible light communication technology is a communication system that uses light-emitting diodes as the emission source and electronic devices equipped with cameras or photodiodes as the receiving end. Optical camera communication, also known as optical imaging communication, belongs to a special kind of visible light communication, using image sensors as receivers. In this paper, an LED array control module for optical camera communication is designed, which realizes the data generation and signal transmission functions of the transmitter of the optical imaging communication system, and performs signal output and data transmission tests in indoor and outdoor environments.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116662467","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}
An envelope-extraction-based ballistocardiography (BCG) data processing method is proposed with a non-invasive optical fiber sensor in this paper. The accuracy of heart rate calculation value can reach 1.28 ± 0.59 bpm (Mean Absolute Error ± Standard Deviation, MAE ± SD) for one minute of measured data. This designed system can identify human body status and analyze Heart Rate Variability (HRV).
{"title":"Non-Invasive Optical Fiber Sensing Vital Signs Monitoring Based on Envelope Extraction BCG Data Processing","authors":"Hanyu Zhao, Guo Zhu, Fei Liu, Xiaojun Liu, Jinhui Yuan, Xian Zhou","doi":"10.1109/OGC55558.2022.10050922","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050922","url":null,"abstract":"An envelope-extraction-based ballistocardiography (BCG) data processing method is proposed with a non-invasive optical fiber sensor in this paper. The accuracy of heart rate calculation value can reach 1.28 ± 0.59 bpm (Mean Absolute Error ± Standard Deviation, MAE ± SD) for one minute of measured data. This designed system can identify human body status and analyze Heart Rate Variability (HRV).","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128386221","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 : 2022-12-06DOI: 10.1109/OGC55558.2022.10051043
Penghao Luo, An Yan, Aolong Sun, Guoqiang Li, Sizhe Xing, Jianyang Shi, Ziwei Li, Chao Shen, Junwen Zhang, Nan Chi
The ever-increasing requirements for bandwidth in edge places higher demands on the transmission capacity and data rate of short-reach intensity-modulation and direct-detection (IM/DD) optical fiber communication systems. Advanced digital signal processing (DSP), such as neural network (NN), is verified to be a good way to improve system performance, but the complicated DSP process always means high power consumption and slow processing speed. Reservoir Computing (RC) is a machine learning algorithm suitable for time-series-based problem, which has a faster computing speed than recurrent NN (RNN). The inherent randomness of RC makes us find its potential of signal equalization in all-optical domain. In this paper, we numerically studied a neuromorphic photonic RC signal processing scheme in IM/DD system with low hardware complexity, and realize the all-optical RC through two sets of optical filter nodes. Subcarrier modulation (SCM) signal is applied to study the filter-based neuromorphic photonic RC scheme, in comparison to traditional equalization methods. Simulation results show that the photonic RC equalization can bring orders of magnitude improvement in BER over traditional schemes, and the performances of different Quadrature Amplitude Modulation (QAM) formats are also studied. Finally, the architecture implementation of photonics RC for 224Gbps SCM signal over 80km standard single-mode fiber (SSMF) transmission in C-band is numerically demonstrated.
{"title":"Study of Filter-based Neuromorphic Photonic Reservoir Computing for Signal Equalization in 224Gbps Sub-carrier Modulation IM-DD Short Reach Optical Fiber Communication System","authors":"Penghao Luo, An Yan, Aolong Sun, Guoqiang Li, Sizhe Xing, Jianyang Shi, Ziwei Li, Chao Shen, Junwen Zhang, Nan Chi","doi":"10.1109/OGC55558.2022.10051043","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051043","url":null,"abstract":"The ever-increasing requirements for bandwidth in edge places higher demands on the transmission capacity and data rate of short-reach intensity-modulation and direct-detection (IM/DD) optical fiber communication systems. Advanced digital signal processing (DSP), such as neural network (NN), is verified to be a good way to improve system performance, but the complicated DSP process always means high power consumption and slow processing speed. Reservoir Computing (RC) is a machine learning algorithm suitable for time-series-based problem, which has a faster computing speed than recurrent NN (RNN). The inherent randomness of RC makes us find its potential of signal equalization in all-optical domain. In this paper, we numerically studied a neuromorphic photonic RC signal processing scheme in IM/DD system with low hardware complexity, and realize the all-optical RC through two sets of optical filter nodes. Subcarrier modulation (SCM) signal is applied to study the filter-based neuromorphic photonic RC scheme, in comparison to traditional equalization methods. Simulation results show that the photonic RC equalization can bring orders of magnitude improvement in BER over traditional schemes, and the performances of different Quadrature Amplitude Modulation (QAM) formats are also studied. Finally, the architecture implementation of photonics RC for 224Gbps SCM signal over 80km standard single-mode fiber (SSMF) transmission in C-band is numerically demonstrated.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130658481","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 : 2022-12-06DOI: 10.1109/OGC55558.2022.10050885
Minghui Niu, Ziyan Zhao, Jiayuan Min, Jie Hu, Huanhuan Liu, D. Luo, Liyang Shao, P. Ping Shum
We have proposed and demonstrated that the taper fiber-enabled motion of soft robots. A thin film with a high refractive index is encapsulated on the top of the taper fiber as well as soft robot. By controlling power of light along the taper fiber, the soft robot can realize a grasping action. Our results may contribute to the effort of exploring distributed light field to drive soft robots.
{"title":"Taper Optical Fiber for Distributed Light-driven Soft Robots","authors":"Minghui Niu, Ziyan Zhao, Jiayuan Min, Jie Hu, Huanhuan Liu, D. Luo, Liyang Shao, P. Ping Shum","doi":"10.1109/OGC55558.2022.10050885","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050885","url":null,"abstract":"We have proposed and demonstrated that the taper fiber-enabled motion of soft robots. A thin film with a high refractive index is encapsulated on the top of the taper fiber as well as soft robot. By controlling power of light along the taper fiber, the soft robot can realize a grasping action. Our results may contribute to the effort of exploring distributed light field to drive soft robots.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122814753","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 : 2022-12-06DOI: 10.1109/OGC55558.2022.10050940
Yuting Liu, Zhijie Sun, Ning Cui, Qing Bai, Yu Wang, Bao-quan Jin
In Brillouin optical time domain reflectometers, the signal-to-noise ratio is a key factor restricting the sensor performance. Using redundancy and correlation of 3DBrillouin gain spectrum in multi-dimensional domain, sparse representation algorithm can be used to improve signal-to-noise ratio. According to basic principle of sparse representation, a dictionary can be designed to reconstruct valid signals. During reconstruction, random noise will be discarded as residuals. In this paper, discrete cosine transform algorithm is used to design the dictionary, orthogonal matching pursuit algorithm is used to extract the coefficient matrix, and the signal is finally reconstructed to achieve the purpose of noise reduction. The simulation results show that when 5dBm random noise is added, signal-to-noise ratio in the non-temperature-change region is increased by 24.3dB, which provides a new idea for improving signal-to-noise ratio of BOTDR sensor.
{"title":"BOTDR Denoising by Sparse Representation Algorithm with Preformed Dictionary","authors":"Yuting Liu, Zhijie Sun, Ning Cui, Qing Bai, Yu Wang, Bao-quan Jin","doi":"10.1109/OGC55558.2022.10050940","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050940","url":null,"abstract":"In Brillouin optical time domain reflectometers, the signal-to-noise ratio is a key factor restricting the sensor performance. Using redundancy and correlation of 3DBrillouin gain spectrum in multi-dimensional domain, sparse representation algorithm can be used to improve signal-to-noise ratio. According to basic principle of sparse representation, a dictionary can be designed to reconstruct valid signals. During reconstruction, random noise will be discarded as residuals. In this paper, discrete cosine transform algorithm is used to design the dictionary, orthogonal matching pursuit algorithm is used to extract the coefficient matrix, and the signal is finally reconstructed to achieve the purpose of noise reduction. The simulation results show that when 5dBm random noise is added, signal-to-noise ratio in the non-temperature-change region is increased by 24.3dB, which provides a new idea for improving signal-to-noise ratio of BOTDR sensor.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115876227","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 : 2022-12-06DOI: 10.1109/OGC55558.2022.10050914
Weihao Lin, Jie Hu, Siming Sun, P. Shum, Fang Zhao, Changyuan Yu, Liyang Shao
In this paper, a new method for ultrasensitive temperature measurement is proposed and demonstrated. The sensor is based on two cascaded peanut structures to form a Mach Zehnder interferometer (MZI) in single mode fiber, and a cone is formed by repeat discharge in the interference region to enhance the evanescent field on its surface. At the same time, isopropanol with high thermal optical coefficient is filled for effective sensitization. The MZI was placed in a fiber ring cavity for filtering and temperature sensing. The results show that the fiber ring laser (FRL) has a narrower 3 dB band width (~0.15nm) and a high signal-to-noise ratio (SNR) (~50dB). In the temperature range of 20℃ to 50℃, the sensitivity reached -285 pm/℃. The sensor has the advantages of high sensitivity, simple structure and low cost. It is expected to be widely used in ocean temperature measurement.
{"title":"Isopropanol-sealed Cascaded-Peanut Taper fiber Structure for Temperature Sensing Incorporated Fiber Laser","authors":"Weihao Lin, Jie Hu, Siming Sun, P. Shum, Fang Zhao, Changyuan Yu, Liyang Shao","doi":"10.1109/OGC55558.2022.10050914","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050914","url":null,"abstract":"In this paper, a new method for ultrasensitive temperature measurement is proposed and demonstrated. The sensor is based on two cascaded peanut structures to form a Mach Zehnder interferometer (MZI) in single mode fiber, and a cone is formed by repeat discharge in the interference region to enhance the evanescent field on its surface. At the same time, isopropanol with high thermal optical coefficient is filled for effective sensitization. The MZI was placed in a fiber ring cavity for filtering and temperature sensing. The results show that the fiber ring laser (FRL) has a narrower 3 dB band width (~0.15nm) and a high signal-to-noise ratio (SNR) (~50dB). In the temperature range of 20℃ to 50℃, the sensitivity reached -285 pm/℃. The sensor has the advantages of high sensitivity, simple structure and low cost. It is expected to be widely used in ocean temperature measurement.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125711282","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 : 2022-12-06DOI: 10.1109/OGC55558.2022.10051074
Yu Wang, Junhong Wang, Bin Liang, Y. Li, Qing Bai, Bao-quan Jin
In phase-sensitive optical time domain reflectometer (Φ-OTDR), due to interference fading, the intensity of Rayleigh backward scattering (RBS) signals may be close to zero at the fading position and submerged in noise, resulting in the abnormal demodulated phase of vibration signal. In this paper, a multi-frequency Φ-OTDR is proposed for the interference fading suppression. Three acousto-optical modulators (AOMs) are used to generate multi-frequency probe pulses. Data alignment processing is carried to ensure the consistency of multi-frequency beat signals. Rotated-vector-sum method is adopted to aggregate multi-frequency signals. Experimental results show that with the help of data alignment processing, the fading probability of aligned curve can be reduced to 1.90%, and the SNR of positioning curve can reach 16.03dB.
{"title":"Interference Fading Suppression for Multi-frequency Φ-OTDR","authors":"Yu Wang, Junhong Wang, Bin Liang, Y. Li, Qing Bai, Bao-quan Jin","doi":"10.1109/OGC55558.2022.10051074","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051074","url":null,"abstract":"In phase-sensitive optical time domain reflectometer (Φ-OTDR), due to interference fading, the intensity of Rayleigh backward scattering (RBS) signals may be close to zero at the fading position and submerged in noise, resulting in the abnormal demodulated phase of vibration signal. In this paper, a multi-frequency Φ-OTDR is proposed for the interference fading suppression. Three acousto-optical modulators (AOMs) are used to generate multi-frequency probe pulses. Data alignment processing is carried to ensure the consistency of multi-frequency beat signals. Rotated-vector-sum method is adopted to aggregate multi-frequency signals. Experimental results show that with the help of data alignment processing, the fading probability of aligned curve can be reduced to 1.90%, and the SNR of positioning curve can reach 16.03dB.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134330868","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 : 2022-12-06DOI: 10.1109/OGC55558.2022.10050916
E. Kuznetsov, Yury Golyaev, Y. Kolbas, Igor Savelev, Tatiana Soloveva
Among laser gyros, being the most precise inertial sensors nowadays, multi-oscillator laser gyros of a new generation are especially promising. Instead of mechanical biasing for eliminating frequency lock-in, they use physical optical methods, increasing their accuracy and resistance to external mechanical impacts. Here we consider Zeeman laser gyros, whose important advantage is the "pure optical path" (without intra-cavity elements). Two modifications of such laser gyros are considered – quasi-four-frequency and four-frequency. The results of experimental measurements of the input-output characteristics with different types of rectangular alternating frequency biasing are presented: with a single biasing (meander) and with a combined biasing (two different meanders). Comparative results confirm the advantages of the combined frequency biasing, improving the linearity of the input-output characteristic by 4 times.
{"title":"Comparison of Quasi-four-frequency and Four-frequency Zeeman Laser Gyros with Different Types of Biasing","authors":"E. Kuznetsov, Yury Golyaev, Y. Kolbas, Igor Savelev, Tatiana Soloveva","doi":"10.1109/OGC55558.2022.10050916","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050916","url":null,"abstract":"Among laser gyros, being the most precise inertial sensors nowadays, multi-oscillator laser gyros of a new generation are especially promising. Instead of mechanical biasing for eliminating frequency lock-in, they use physical optical methods, increasing their accuracy and resistance to external mechanical impacts. Here we consider Zeeman laser gyros, whose important advantage is the \"pure optical path\" (without intra-cavity elements). Two modifications of such laser gyros are considered – quasi-four-frequency and four-frequency. The results of experimental measurements of the input-output characteristics with different types of rectangular alternating frequency biasing are presented: with a single biasing (meander) and with a combined biasing (two different meanders). Comparative results confirm the advantages of the combined frequency biasing, improving the linearity of the input-output characteristic by 4 times.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"7 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129205710","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 : 2022-12-06DOI: 10.1109/OGC55558.2022.10051017
Yifan Zhang, Yifei Zhao, Weichao Ma, Guiyao Zhou
Recently, multi-core fibers have performed prominently in the field of space division multiplexing (SDM) due to their multi-channel characteristics. As an important component of the SDM system, multi-core fiber amplifiers face huge challenges compared to single-channel amplifiers in front-end and back-end coupling devices, pumping methods, and amplification performance. Based on this, we propose and develop a 7-core erbium-ytterbium co-doped microstructured fiber amplifier (7CEYDFA) for efficient multi-core fiber amplification. By using air holes to surround the inner cladding, the double cladding structure can effectively isolate the pump light. At the same time, the specially prepared high concentration doped core rare earth material can ensure that 7CEYDFA can achieve efficient amplification within only 90cm. Through experimental tests, 7CEYDFA achieved a gain of 20.9dB at 1532nm.
{"title":"7-Core Erbium-Ytterbium Co-dopped Microstructured Fiber Amplifier","authors":"Yifan Zhang, Yifei Zhao, Weichao Ma, Guiyao Zhou","doi":"10.1109/OGC55558.2022.10051017","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051017","url":null,"abstract":"Recently, multi-core fibers have performed prominently in the field of space division multiplexing (SDM) due to their multi-channel characteristics. As an important component of the SDM system, multi-core fiber amplifiers face huge challenges compared to single-channel amplifiers in front-end and back-end coupling devices, pumping methods, and amplification performance. Based on this, we propose and develop a 7-core erbium-ytterbium co-doped microstructured fiber amplifier (7CEYDFA) for efficient multi-core fiber amplification. By using air holes to surround the inner cladding, the double cladding structure can effectively isolate the pump light. At the same time, the specially prepared high concentration doped core rare earth material can ensure that 7CEYDFA can achieve efficient amplification within only 90cm. Through experimental tests, 7CEYDFA achieved a gain of 20.9dB at 1532nm.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121356228","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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