Pub Date : 2022-12-06DOI: 10.1109/OGC55558.2022.10050910
Gordon Ning Liu, Lin Sun, Caoyang Liu, Jiawang Xiao, Y. Cai, G. Shen
With the rapid development of optical data center interconnect, the requirement for data rate of client-side transceivers increases drastically. To meet the transmission rate demand, the recent pulse-amplitude modulation optical interconnects are discussed. To lower down the cost of the optical interconnects, low cost opto-electronic devices with strong bandwidth limitation and nonlinear distortion are employed. Moreover, the interplay between the fiber dispersion and square law photodetection leads to additional nonlinear inter-symbol interference. To handle the problem, various digital equalizers are introduced, which are reviewed in this paper.
{"title":"Equalization for Optical PAM Data Center Interconnects","authors":"Gordon Ning Liu, Lin Sun, Caoyang Liu, Jiawang Xiao, Y. Cai, G. Shen","doi":"10.1109/OGC55558.2022.10050910","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050910","url":null,"abstract":"With the rapid development of optical data center interconnect, the requirement for data rate of client-side transceivers increases drastically. To meet the transmission rate demand, the recent pulse-amplitude modulation optical interconnects are discussed. To lower down the cost of the optical interconnects, low cost opto-electronic devices with strong bandwidth limitation and nonlinear distortion are employed. Moreover, the interplay between the fiber dispersion and square law photodetection leads to additional nonlinear inter-symbol interference. To handle the problem, various digital equalizers are introduced, which are reviewed in this paper.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"26 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":"126941067","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/OGC55558.2022.10051064
Boyao Li, Tianrong Huang
With the development of artificial intelligence for complex environment monitoring technology, new sensors based on the combination of diversified customized optical fiber waveguides and functional materials have become an important solution to meet the diverse perceptions in complex environments. Then, for solving the concentration monitoring problem of multi-channel microfluidics, the bimetallic anti-resonant fiber structure is proposed in this paper, which realize the multi-band microfluidic sensor of bimetallic reverse resonant fiber. Theoretical results show that the sensor achieves the surface plasma resonance (SPR) coupling of the core mode and the metal film at multiple bands of 1450 nm, 1650 nm and 1700 nm, then uses this feature to achieve refractive index sensing in three bands. The corresponding results have potential applications in the field of multimetallic microstructure fiber fluid sensing in the air core, and provide new ideas for the design of multi-band SPR resonance sensors, which are expected to be applied in the field of biochemical monitoring.
{"title":"The Micro-control Refractive Index Sensor of Dual-metal Antiresonance Optical Fiber","authors":"Boyao Li, Tianrong Huang","doi":"10.1109/OGC55558.2022.10051064","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051064","url":null,"abstract":"With the development of artificial intelligence for complex environment monitoring technology, new sensors based on the combination of diversified customized optical fiber waveguides and functional materials have become an important solution to meet the diverse perceptions in complex environments. Then, for solving the concentration monitoring problem of multi-channel microfluidics, the bimetallic anti-resonant fiber structure is proposed in this paper, which realize the multi-band microfluidic sensor of bimetallic reverse resonant fiber. Theoretical results show that the sensor achieves the surface plasma resonance (SPR) coupling of the core mode and the metal film at multiple bands of 1450 nm, 1650 nm and 1700 nm, then uses this feature to achieve refractive index sensing in three bands. The corresponding results have potential applications in the field of multimetallic microstructure fiber fluid sensing in the air core, and provide new ideas for the design of multi-band SPR resonance sensors, which are expected to be applied in the field of biochemical monitoring.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"4 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":"125541925","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/OGC55558.2022.10051054
Liu Xingtan, Hua Baocheng, Liu Qihai, Deng Loulou, Liu Jing, Tao Liqing, Wu Xiuyu, Lei Kaiyu
The method of pose measurement using computer monocular vision is widely used in the field of six-degree-of-freedom(6DOF) pose measurement in industry, aerospace and other fields. By analyzing the factors that affect the accuracy of monocular pose measurement, the research on the target layout of cooperative positioning is carried out. First, a sub-millimeter monocular spatial positioning simulation system is built, and the key components of the target layout are defined as Target Scale(TS) and Elevation Difference(ED); then, as the input, the 6DOF measurement accuracy of the monocular spatial positioning system under different conditions is obtained. The results show that the three-axis position accuracy is better than 0.5mm, and is affected by the positive correlation between the TS and the ED, and the axial variation is more significant. The three-axis attitude accuracy is better than 0.03° (1.8 arc seconds), which is greatly positive affected by the TS, and the axial pose is more robust than azimuth pose.
{"title":"Influence of Target Layout on the Accuracy of Monocular Vision 6DOF Spatial Pose Measurement","authors":"Liu Xingtan, Hua Baocheng, Liu Qihai, Deng Loulou, Liu Jing, Tao Liqing, Wu Xiuyu, Lei Kaiyu","doi":"10.1109/OGC55558.2022.10051054","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051054","url":null,"abstract":"The method of pose measurement using computer monocular vision is widely used in the field of six-degree-of-freedom(6DOF) pose measurement in industry, aerospace and other fields. By analyzing the factors that affect the accuracy of monocular pose measurement, the research on the target layout of cooperative positioning is carried out. First, a sub-millimeter monocular spatial positioning simulation system is built, and the key components of the target layout are defined as Target Scale(TS) and Elevation Difference(ED); then, as the input, the 6DOF measurement accuracy of the monocular spatial positioning system under different conditions is obtained. The results show that the three-axis position accuracy is better than 0.5mm, and is affected by the positive correlation between the TS and the ED, and the axial variation is more significant. The three-axis attitude accuracy is better than 0.03° (1.8 arc seconds), which is greatly positive affected by the TS, and the axial pose is more robust than azimuth pose.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"68 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":"124732954","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/OGC55558.2022.10051113
Lin Sun, Luxiao Zhang, Y. Cai, G. Shen, Gordon Ning Liu, B. Chen
We proposed an improved retiming algorithm for optical PAM-4 system by introducing a moving average filter into the conventional Gardner loop. It exhibits an enhanced stability especially when system bandwidth is limited.
{"title":"Ultra-stable and Low-complexity Retiming Technique for Bandwidth-limited 112-Gbps PAM-4 systems","authors":"Lin Sun, Luxiao Zhang, Y. Cai, G. Shen, Gordon Ning Liu, B. Chen","doi":"10.1109/OGC55558.2022.10051113","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051113","url":null,"abstract":"We proposed an improved retiming algorithm for optical PAM-4 system by introducing a moving average filter into the conventional Gardner loop. It exhibits an enhanced stability especially when system bandwidth is limited.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"5 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":"121414908","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 Er3+-doped AlN film has been prepared by radio frequency magnetron sputtering and its photoluminescence (PL) characteristics were studied. It shows high PL efficiency in a wide range of the visible (540 and 560 nm) and infrared (817, 864, 980 and 1534 nm) ranges. In the transition of 4f levels of Er3+, the PL from 2H11/2 →4I15/2 and 4S3/2 → 4I15/2 shows obvious temperature dependence, which exhibits a functional relationship between their PL intensity ratio I540nm/I560nm and temperature over 100-550 K. It has a relatively high sensitivity (little above 0.01 K-1) among the currently researched temperature sensing materials and can be used as a new contactless temperature sensor in a harsh environment. In the field of infrared luminescence, 864 and 1534 nm are the low loss transmission window in silica fibers and suitable for communication systems.
{"title":"Visible and Infrared Luminescence and Applications of Er-doped AlN Thin Films","authors":"Zhiyuan Wang, Feihong Zhang, S. Golovynskyi, Zhenhua Sun, Baikui Li, Honglei Wu","doi":"10.1109/OGC55558.2022.10051061","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051061","url":null,"abstract":"An Er<sup>3+</sup>-doped AlN film has been prepared by radio frequency magnetron sputtering and its photoluminescence (PL) characteristics were studied. It shows high PL efficiency in a wide range of the visible (540 and 560 nm) and infrared (817, 864, 980 and 1534 nm) ranges. In the transition of 4f levels of Er<sup>3+</sup>, the PL from <sup>2</sup>H<inf>11/2</inf> →<sup>4</sup>I<inf>15/2</inf> and <sup>4</sup>S<inf>3/2</inf> → <sup>4</sup>I<inf>15/2</inf> shows obvious temperature dependence, which exhibits a functional relationship between their PL intensity ratio I<inf>540nm</inf>/I<inf>560nm</inf> and temperature over 100-550 K. It has a relatively high sensitivity (little above 0.01 K<sup>-1</sup>) among the currently researched temperature sensing materials and can be used as a new contactless temperature sensor in a harsh environment. In the field of infrared luminescence, 864 and 1534 nm are the low loss transmission window in silica fibers and suitable for communication systems.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"90 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":"115808445","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/OGC55558.2022.10050967
T. Yuan, Yu Cheng, Ming Chen, Libo Yuan, Sumei Huang, Jing Li
Novel bismuth-erbium co-doped fibers (BEDFs) are prepared by the modified chemical vapor deposition process, and its fluorescence spectra covers 1380~1700nm. The structure, fiber length, pump power and Erbium ion doping concentration are discussed in this paper to explore the properties of this ultra-wideband fiber light source based on BEDF. The experiments show that the optimization of the above parameters is beneficial in improving the fluorescence intensity of this fiber light source from 1450 nm to 1700 nm. The concentration of erbium ions affects the luminescence efficiency of the fiber. It is demonstrated that the decrease of the fluorescence luminescence efficiency is due to the presence of a strong upconversion luminescence via experiments described in this paper. Finally, a high-brightness ultra-broadband light source with a full spectral width of 320 nm is obtained through a multi-parameter equalization method, and its 5db bandwidth near 1550 nm can reach 51 nm, and the output power of the light source can reach 1.95 mW.
{"title":"High Brightness Ultra Wideband Fiber Source","authors":"T. Yuan, Yu Cheng, Ming Chen, Libo Yuan, Sumei Huang, Jing Li","doi":"10.1109/OGC55558.2022.10050967","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050967","url":null,"abstract":"Novel bismuth-erbium co-doped fibers (BEDFs) are prepared by the modified chemical vapor deposition process, and its fluorescence spectra covers 1380~1700nm. The structure, fiber length, pump power and Erbium ion doping concentration are discussed in this paper to explore the properties of this ultra-wideband fiber light source based on BEDF. The experiments show that the optimization of the above parameters is beneficial in improving the fluorescence intensity of this fiber light source from 1450 nm to 1700 nm. The concentration of erbium ions affects the luminescence efficiency of the fiber. It is demonstrated that the decrease of the fluorescence luminescence efficiency is due to the presence of a strong upconversion luminescence via experiments described in this paper. Finally, a high-brightness ultra-broadband light source with a full spectral width of 320 nm is obtained through a multi-parameter equalization method, and its 5db bandwidth near 1550 nm can reach 51 nm, and the output power of the light source can reach 1.95 mW.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"7 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":"134570617","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/OGC55558.2022.10050927
Shilei Liu, Jiajun Ma, Hongyi Li, Yi Liu, C. Ouyang
Terahertz metasurfaces attract more and more attention in the recent years due to their unique properties and promising application prospects. Here we propose an active multi-functional metasurface at terahertz frequencies, whose functionalities can switch between the highly efficient absorption and broadband polarization conversion by changing the ambient temperature, based on the phase-transition effect of vanadium dioxide (VO2). The designed metasurface is polarization independent, and the simple design is easy to fabricate in experiment, which is expected to enrich the terahertz modulators and functional devices.
{"title":"Switchable Multifunctional Metasurfaces Based on Vanadium Dioxide in the Terahertz Region","authors":"Shilei Liu, Jiajun Ma, Hongyi Li, Yi Liu, C. Ouyang","doi":"10.1109/OGC55558.2022.10050927","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050927","url":null,"abstract":"Terahertz metasurfaces attract more and more attention in the recent years due to their unique properties and promising application prospects. Here we propose an active multi-functional metasurface at terahertz frequencies, whose functionalities can switch between the highly efficient absorption and broadband polarization conversion by changing the ambient temperature, based on the phase-transition effect of vanadium dioxide (VO2). The designed metasurface is polarization independent, and the simple design is easy to fabricate in experiment, which is expected to enrich the terahertz modulators and functional devices.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"19 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":"130552851","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/OGC55558.2022.10051084
Jingwen Li, Zhichao Wu, Zhe Yu, Chaoyu Xu, Tianye Huang, S. Fu
The linear optical sampling (LOS) technique enables the full-field information acquisition of ultra-high speed optical signals with low bandwidth optoelectronic devices. Compared to conventional coherent detection method, LOS is a more powerful tool to monitor ultra-high speed optical signals, since it gets rid of the bandwidth limitation of electronic bottleneck. In this paper, the LOS is proposed to implement the characterization of bound state solitons generated from a passively mode-locked fiber laser. According to our experimental results, it is confirmed that the LOS enables more accurate measurements with much higher resolution in both time and spectral domains than conventional measurement devices.
{"title":"Characterization of Various Bound State Solitons Using Linear Optical Sampling Technique","authors":"Jingwen Li, Zhichao Wu, Zhe Yu, Chaoyu Xu, Tianye Huang, S. Fu","doi":"10.1109/OGC55558.2022.10051084","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051084","url":null,"abstract":"The linear optical sampling (LOS) technique enables the full-field information acquisition of ultra-high speed optical signals with low bandwidth optoelectronic devices. Compared to conventional coherent detection method, LOS is a more powerful tool to monitor ultra-high speed optical signals, since it gets rid of the bandwidth limitation of electronic bottleneck. In this paper, the LOS is proposed to implement the characterization of bound state solitons generated from a passively mode-locked fiber laser. According to our experimental results, it is confirmed that the LOS enables more accurate measurements with much higher resolution in both time and spectral domains than conventional measurement devices.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"61 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":"113978376","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/OGC55558.2022.10051016
Zhuang Wang, Chuan Shen, Liu Wang, Bin Wang, Daofeng He, Sui Wei
A solver for subwavelength lamellar gratings is presented synchronized with the development of a light modulator for holographic video display Grating Liquid Crystal on Silicon (GLCoS) and is regarded as an important part of the whole R&D work. In this way it not only gives computational support in the whole design process including physical concept descriptions, verifications, predictions, fabrications and other experimental activities but also provides a support platform for further product development. Based on the generic Fourier modal method, we focus on the electrodynamics specific to conductors (Au, Al) and charge carriers in semiconductors (Indium Tin Oxide, ITO) in SPPs (Surface Plasmon Polaritons) and permittivity characteristics of the materials to make the solver oriented towards subwavelength (metal, semiconductor) lamellar gratings. Further, we analyze and calculate the optical characteristics of subwavelength lamellar gratings composed of ITO and Au. The results of these calculations not only agree with the results of actual GLCoS device tests to the same order of accuracy, but also demonstrate the validity and accuracy of the solver.
{"title":"A Solver for Devices of Subwavelength Lamellar Gratings","authors":"Zhuang Wang, Chuan Shen, Liu Wang, Bin Wang, Daofeng He, Sui Wei","doi":"10.1109/OGC55558.2022.10051016","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10051016","url":null,"abstract":"A solver for subwavelength lamellar gratings is presented synchronized with the development of a light modulator for holographic video display Grating Liquid Crystal on Silicon (GLCoS) and is regarded as an important part of the whole R&D work. In this way it not only gives computational support in the whole design process including physical concept descriptions, verifications, predictions, fabrications and other experimental activities but also provides a support platform for further product development. Based on the generic Fourier modal method, we focus on the electrodynamics specific to conductors (Au, Al) and charge carriers in semiconductors (Indium Tin Oxide, ITO) in SPPs (Surface Plasmon Polaritons) and permittivity characteristics of the materials to make the solver oriented towards subwavelength (metal, semiconductor) lamellar gratings. Further, we analyze and calculate the optical characteristics of subwavelength lamellar gratings composed of ITO and Au. The results of these calculations not only agree with the results of actual GLCoS device tests to the same order of accuracy, but also demonstrate the validity and accuracy of the solver.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"245 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":"124235560","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/OGC55558.2022.10050979
Z. Geng, Houling Ji, Zhuoyu Yu, Wei-Wei Cheng, Yi Li, Qiancheng Zhao
Thickness-constrained waveguides enable ultralow loss photonics while suffering severe chromatic issues nowadays. We present a concentric ring configuration to reduce the dispersion requirements for the core waveguide thickness. This approach employs a second ring to squeeze light into additional anti-bonding modes to manifest the dispersion profile with lateral coupling parameters such as the 2nd ring width as well as the gap size. We then applied this method to a 200 nm-thick SiO2-passivated concentric coupled GaP-OI resonator design for Kerr soliton frequency comb generation which gives rise to an anomalous dispersion span of 150 nm. The dispersion profile could be further optimized by changing the gap of the coupled rings, demonstrating the design flexibility. Our concentric microrings approach can find anomalous dispersions on thickness-constrained materials, opening the possibilities for novel integrated nonlinear photonic applications.
{"title":"Flexible Dispersion Engineering in Thin GaP-OI Frequency Comb Resonator Design","authors":"Z. Geng, Houling Ji, Zhuoyu Yu, Wei-Wei Cheng, Yi Li, Qiancheng Zhao","doi":"10.1109/OGC55558.2022.10050979","DOIUrl":"https://doi.org/10.1109/OGC55558.2022.10050979","url":null,"abstract":"Thickness-constrained waveguides enable ultralow loss photonics while suffering severe chromatic issues nowadays. We present a concentric ring configuration to reduce the dispersion requirements for the core waveguide thickness. This approach employs a second ring to squeeze light into additional anti-bonding modes to manifest the dispersion profile with lateral coupling parameters such as the 2nd ring width as well as the gap size. We then applied this method to a 200 nm-thick SiO2-passivated concentric coupled GaP-OI resonator design for Kerr soliton frequency comb generation which gives rise to an anomalous dispersion span of 150 nm. The dispersion profile could be further optimized by changing the gap of the coupled rings, demonstrating the design flexibility. Our concentric microrings approach can find anomalous dispersions on thickness-constrained materials, opening the possibilities for novel integrated nonlinear photonic applications.","PeriodicalId":177155,"journal":{"name":"2022 IEEE 7th Optoelectronics Global Conference (OGC)","volume":"11 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":"127191919","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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