Pub Date : 2022-07-01DOI: 10.1109/SUM53465.2022.9858280
Fehmida Usmani, I. Khan, M. U. Masood, Arsalan Ahmad, Muhammad Shahzad, V. Curri
We propose a transfer learning-based technique that assists in estimating the Quality-of-transmission (QoT) of the lightpaths in an extended C-band network on 400ZR. The proposed scheme develops the cognition using the traditional C-band operating network knowledge.
{"title":"QoT- Estimation Assisted by Transfer learning in Extended C-band Network Operating on 400ZR","authors":"Fehmida Usmani, I. Khan, M. U. Masood, Arsalan Ahmad, Muhammad Shahzad, V. Curri","doi":"10.1109/SUM53465.2022.9858280","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858280","url":null,"abstract":"We propose a transfer learning-based technique that assists in estimating the Quality-of-transmission (QoT) of the lightpaths in an extended C-band network on 400ZR. The proposed scheme develops the cognition using the traditional C-band operating network knowledge.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126103431","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858212
S. Seyedinnavadeh, M. Milanizadeh, F. Zanetto, V. Grimaldi, Christian De Vita, C. Klitis, M. Sorel, G. Ferrari, David A. B. Miller, A. Melloni, F. Morichetti
A silicon photonic programmable processor of reconfigurable Mach-Zehnder interferometers is used to receive pairs of orthogonal spatially-overlapped beams modulated, sharing the same wavelength and polarization. The processor can automatically separate the two beams without any excess loss and no prior information on the incoming beams.
{"title":"Multi-Channel Free-Space Optics Receiver Enabled by a Programmable Photonic Processor","authors":"S. Seyedinnavadeh, M. Milanizadeh, F. Zanetto, V. Grimaldi, Christian De Vita, C. Klitis, M. Sorel, G. Ferrari, David A. B. Miller, A. Melloni, F. Morichetti","doi":"10.1109/SUM53465.2022.9858212","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858212","url":null,"abstract":"A silicon photonic programmable processor of reconfigurable Mach-Zehnder interferometers is used to receive pairs of orthogonal spatially-overlapped beams modulated, sharing the same wavelength and polarization. The processor can automatically separate the two beams without any excess loss and no prior information on the incoming beams.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"788 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126952740","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858262
Q. Chapdelaine, K. Nallappan, Yang Cao, Guofu Xu, N. Chernomyrdin, H. Guerboukha, K. Zaitsev, M. Skorobogatiy
THz microscopy is attracting a lot of attention due to its potential applications in medicine, semi-conductor analysis, etc. In this work, we present the fabrication and characterization of high permittivity solid immersion lens and demonstrate its super-resolution abilities in the THz spectral range.
{"title":"Fabrication and Characterization of High Permittivity Solid Immersion Lenses for Terahertz Microscopy Applications","authors":"Q. Chapdelaine, K. Nallappan, Yang Cao, Guofu Xu, N. Chernomyrdin, H. Guerboukha, K. Zaitsev, M. Skorobogatiy","doi":"10.1109/SUM53465.2022.9858262","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858262","url":null,"abstract":"THz microscopy is attracting a lot of attention due to its potential applications in medicine, semi-conductor analysis, etc. In this work, we present the fabrication and characterization of high permittivity solid immersion lens and demonstrate its super-resolution abilities in the THz spectral range.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"33 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132983014","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858127
K. Murate, K. Kawase
Accurate real-time reagent detection was performed by using a multi-wavelength terahertz-wave parametric generator. Combined with terahertz-wave parametric detection, spectral information is obtained as an image, and image recognition by machine learning enables real-time identification over a wide dynamic range.
{"title":"Real-time spectroscopic measurement using terahertz parametric generator","authors":"K. Murate, K. Kawase","doi":"10.1109/SUM53465.2022.9858127","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858127","url":null,"abstract":"Accurate real-time reagent detection was performed by using a multi-wavelength terahertz-wave parametric generator. Combined with terahertz-wave parametric detection, spectral information is obtained as an image, and image recognition by machine learning enables real-time identification over a wide dynamic range.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130219889","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858231
D. Burghoff
In many lasers, frequency combs can form whose output is frequency-modulated. Though this effect has been noted for decades, it was not well-understood until recently. I will discuss how these combs form, and will show how this phenomenon explains a diverse set of experimental observations.
{"title":"Beyond pulses: frequency combs in active cavities","authors":"D. Burghoff","doi":"10.1109/SUM53465.2022.9858231","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858231","url":null,"abstract":"In many lasers, frequency combs can form whose output is frequency-modulated. Though this effect has been noted for decades, it was not well-understood until recently. I will discuss how these combs form, and will show how this phenomenon explains a diverse set of experimental observations.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125884856","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858220
C. Broderick
The band gap of germanium (Ge) is “weakly” indirect, with the $mathrm{L}_{6c}$ conduction band (CB) minimum lying only $approx 150text{meV}$ below the zone-center $Gamma_{7c}$ CB edge in energy. This has stimulated significant interest in engineering the band structure of Ge, with the aim of realizing a direct-gap group-IV semiconductor compatible with established complementary metal-oxide-semiconductor fabrication and processing infrastructure. Recent advances in nanowire fabrication now allow growth of Ge in the metastable lonsdaleite (“hexagonal diamond”) phase, reproducibly and with high crystalline quality. In its lonsdaleite allotrope Ge is a direct- and narrow-gap semiconductor, in which the zone-center $mathrm{T}_{8mathrm{c}}$ CB minimum originates via back-folding of the $mathrm{L}_{6c}$ CB minimum of the conventional cubic (diamond) phase. Here, we analyze the electronic structure evolution in direct-gap lonsdaleite SixGe1-x alloys from first principles, using a combination of alloy supercell calculations and zone unfolding. We confirm the Si composition range $xleq$ 25 % across which SixGe1-x possesses a direct band gap, quantify the impact of alloy-induced band hybridization on the inter-band optical matrix elements, and describe qualitatively the consequences of the alloy band structure for carrier recombination.
锗(Ge)的带隙是“弱”间接的，其$mathrm{L}_{6c}$导带(CB)最小值在能量上仅位于$approx 150text{meV}$区中心$Gamma_{7c}$ CB边缘以下。这激发了人们对工程锗带结构的极大兴趣，目的是实现与已建立的互补金属氧化物半导体制造和加工基础设施兼容的直接间隙族iv半导体。纳米线制造的最新进展现在允许在亚稳的长方金刚石(“六方金刚石”)相中生长Ge，可重复且具有高结晶质量。在其lonsdaleite同素异形体中，Ge是一种直接窄隙半导体，其中区域中心$mathrm{T}_{8mathrm{c}}$ CB最小值源于传统立方(金刚石)相$mathrm{L}_{6c}$ CB最小值的反向折叠。本文采用合金超级单体计算和区域展开相结合的方法，从第一性原理出发，分析了直接间隙lonsdaleite SixGe1-x合金的电子结构演变。我们确认Si成分范围$xleq$ 25 % across which SixGe1-x possesses a direct band gap, quantify the impact of alloy-induced band hybridization on the inter-band optical matrix elements, and describe qualitatively the consequences of the alloy band structure for carrier recombination.
{"title":"Hexagonal SixGe1-xas a direct-gap semiconductor","authors":"C. Broderick","doi":"10.1109/SUM53465.2022.9858220","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858220","url":null,"abstract":"The band gap of germanium (Ge) is “weakly” indirect, with the $mathrm{L}_{6c}$ conduction band (CB) minimum lying only $approx 150text{meV}$ below the zone-center $Gamma_{7c}$ CB edge in energy. This has stimulated significant interest in engineering the band structure of Ge, with the aim of realizing a direct-gap group-IV semiconductor compatible with established complementary metal-oxide-semiconductor fabrication and processing infrastructure. Recent advances in nanowire fabrication now allow growth of Ge in the metastable lonsdaleite (“hexagonal diamond”) phase, reproducibly and with high crystalline quality. In its lonsdaleite allotrope Ge is a direct- and narrow-gap semiconductor, in which the zone-center $mathrm{T}_{8mathrm{c}}$ CB minimum originates via back-folding of the $mathrm{L}_{6c}$ CB minimum of the conventional cubic (diamond) phase. Here, we analyze the electronic structure evolution in direct-gap lonsdaleite SixGe1-x alloys from first principles, using a combination of alloy supercell calculations and zone unfolding. We confirm the Si composition range $xleq$ 25 % across which SixGe1-x possesses a direct band gap, quantify the impact of alloy-induced band hybridization on the inter-band optical matrix elements, and describe qualitatively the consequences of the alloy band structure for carrier recombination.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121707673","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858241
Jungwon Kim, Dohyeon Kwon
We show that timing and comb-line of optical frequency combs can be directly stabilized to the delay time of a compact 1-km-long optical fiber link spool (with several cm diameter) with (sub-)femtosecond-level integrated jitter and down to 10−1s-level frequency instability.
{"title":"Compact and Ultra-Stable Fiber-Photonic Stabilization Methods of Optical Frequency Combs","authors":"Jungwon Kim, Dohyeon Kwon","doi":"10.1109/SUM53465.2022.9858241","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858241","url":null,"abstract":"We show that timing and comb-line of optical frequency combs can be directly stabilized to the delay time of a compact 1-km-long optical fiber link spool (with several cm diameter) with (sub-)femtosecond-level integrated jitter and down to 10−1s-level frequency instability.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122686257","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858273
Bo Wang, Fangmin Wang, Guan Wang, Zhongwang Pang, Bohan Zhang
Fiber network has become one of the largest infrastructures in the world. To expand its ability except to telecommunication, we show recent experimental results of frequency synchronization network in Beijing, timekeeping method based on this network, urban traffic vibration sensing, and earthquake detection.
{"title":"Using Fiber Network to Realize Synchronization, Timekeeping and Vibration Sensing","authors":"Bo Wang, Fangmin Wang, Guan Wang, Zhongwang Pang, Bohan Zhang","doi":"10.1109/SUM53465.2022.9858273","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858273","url":null,"abstract":"Fiber network has become one of the largest infrastructures in the world. To expand its ability except to telecommunication, we show recent experimental results of frequency synchronization network in Beijing, timekeeping method based on this network, urban traffic vibration sensing, and earthquake detection.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123423206","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858309
M. Feng, H. Ling, Baoqing Zhang, Qingpu Wang, Aimin Song, Yifei Zhang
As the emergence of the sixth generation communication technologies, terahertz frequencies have gained great interest. Active metasurfaces with tunable optical properties can manipulate terahertz waves versatilely, which enables many promising applications, such as reconfigurable intelligent surface, dynamically-controlled radome, holography, etc.
{"title":"Actively Manipulate Terahertz Waves: (Invited Paper)","authors":"M. Feng, H. Ling, Baoqing Zhang, Qingpu Wang, Aimin Song, Yifei Zhang","doi":"10.1109/SUM53465.2022.9858309","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858309","url":null,"abstract":"As the emergence of the sixth generation communication technologies, terahertz frequencies have gained great interest. Active metasurfaces with tunable optical properties can manipulate terahertz waves versatilely, which enables many promising applications, such as reconfigurable intelligent surface, dynamically-controlled radome, holography, etc.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"13 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121005721","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 : 2022-07-01DOI: 10.1109/SUM53465.2022.9858128
O. Spitz, Shiyuan Zhao, P. Didier, D. Díaz-Thomas, L. Cerutti, A. Baranov, Hedwig Knötig, R. Weih, J. Köth, B. Schwarz, F. Grillot
To achieve mid-infrared wavelength operation with semiconductor technology, efforts were mainly focused on in-tersubband devices requiring high voltage and current. In this work, we show our latest progress with energy -efficient interband emitters and receivers, paving the way towards application like free-space communication and squeezed light.
{"title":"Interband cascade technology for next-generation mid-IR communication and quantum applications","authors":"O. Spitz, Shiyuan Zhao, P. Didier, D. Díaz-Thomas, L. Cerutti, A. Baranov, Hedwig Knötig, R. Weih, J. Köth, B. Schwarz, F. Grillot","doi":"10.1109/SUM53465.2022.9858128","DOIUrl":"https://doi.org/10.1109/SUM53465.2022.9858128","url":null,"abstract":"To achieve mid-infrared wavelength operation with semiconductor technology, efforts were mainly focused on in-tersubband devices requiring high voltage and current. In this work, we show our latest progress with energy -efficient interband emitters and receivers, paving the way towards application like free-space communication and squeezed light.","PeriodicalId":371464,"journal":{"name":"2022 IEEE Photonics Society Summer Topicals Meeting Series (SUM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126442246","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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