Pub Date : 2021-05-31DOI: 10.1109/PN52152.2021.9597853
V. Kocharovsky, E. Kocharovskaya, Alexey B. Mishin, A. Seleznev, V. Kocharovsky
We find an intriguing regime of simultaneous emission of two power trains of superradiant pulses and soliton-like pulses in a class C laser with a low-Q combined cavity that supports two broadband superradiant modes and many quasi-monochromatic self-locked modes under the condition of double resonance when (i) the latter modes have an intermode spacing two times less than a frequency spacing between the superradiant modes and (ii) a pulse-repetition interval in an oscillogram of each superradiant mode is multiple of a pulse-repetition cycle of the self-mode-locking solitons, i.e., a cavity round-trip period.
{"title":"Double Resonance and Coherent Parametric Self-Mode-Locking in CW Superradiant Lasing","authors":"V. Kocharovsky, E. Kocharovskaya, Alexey B. Mishin, A. Seleznev, V. Kocharovsky","doi":"10.1109/PN52152.2021.9597853","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597853","url":null,"abstract":"We find an intriguing regime of simultaneous emission of two power trains of superradiant pulses and soliton-like pulses in a class C laser with a low-Q combined cavity that supports two broadband superradiant modes and many quasi-monochromatic self-locked modes under the condition of double resonance when (i) the latter modes have an intermode spacing two times less than a frequency spacing between the superradiant modes and (ii) a pulse-repetition interval in an oscillogram of each superradiant mode is multiple of a pulse-repetition cycle of the self-mode-locking solitons, i.e., a cavity round-trip period.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"7 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77533468","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597973
J. Malone, S. Lam, A. L. Buenconsejo, G. Hohert, J. McAlpine, Dianne Miller, Marette H Lee, P. Lane, Calum MacAulay
Cervical cancer continues to be a significant global health burden as one of the most frequently diagnosed and fatal cancers, ranking fourth in both categories globally in 2020 [1]. Although there is an effective vaccine which will hopefully reduce the future burden of cervical cancers, there remains a need for screening programs as early detection and treatment drastically improves patient outcomes.
{"title":"Endoscopic optical coherence tomography and autofluorescence imaging of the endocervical canal for cervical cancer detection","authors":"J. Malone, S. Lam, A. L. Buenconsejo, G. Hohert, J. McAlpine, Dianne Miller, Marette H Lee, P. Lane, Calum MacAulay","doi":"10.1109/PN52152.2021.9597973","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597973","url":null,"abstract":"Cervical cancer continues to be a significant global health burden as one of the most frequently diagnosed and fatal cancers, ranking fourth in both categories globally in 2020 [1]. Although there is an effective vaccine which will hopefully reduce the future burden of cervical cancers, there remains a need for screening programs as early detection and treatment drastically improves patient outcomes.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"438 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76955577","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597847
Essam Berikaa, Santiago Bernal, Y. D’Mello, Deng Mao, D. Plant
We report a compact 10-tip inverse tapered edge coupler design for silicon photonics integrated circuits that has a coupling efficiency of -0.72 dB at 1310 nm and -1.12 dB at 1550 nm considering a TE-polarized 3 $mu mathrm{m}$ MFD source. 3D-FDTD simulations show that the design exhibit a 1-dB bandwidth of more than 400 nm for both TE and TM modes with polarization-dependent loss less than 0.4 dB and 1-dB horizontal misalignment tolerance of 2.35 $mu mathrm{m}$.
{"title":"Misalignment-Tolerant Ultra-Broadband Edge Coupler Based on 10 Inverse Tapers","authors":"Essam Berikaa, Santiago Bernal, Y. D’Mello, Deng Mao, D. Plant","doi":"10.1109/PN52152.2021.9597847","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597847","url":null,"abstract":"We report a compact 10-tip inverse tapered edge coupler design for silicon photonics integrated circuits that has a coupling efficiency of -0.72 dB at 1310 nm and -1.12 dB at 1550 nm considering a TE-polarized 3 $mu mathrm{m}$ MFD source. 3D-FDTD simulations show that the design exhibit a 1-dB bandwidth of more than 400 nm for both TE and TM modes with polarization-dependent loss less than 0.4 dB and 1-dB horizontal misalignment tolerance of 2.35 $mu mathrm{m}$.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"13 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78372640","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597914
Ankit Udai, Tarni Aggarwal, Vikas Pendem, S. Ganguly, D. Saha
Carrier dynamics is fundamental in the optimal performance of optoelectronic devices. TAS experiments can be used to study carrier dynamics at a particular wavelength. However, the $Delta alpha$ kinetics in QCSE-exhibiting materials turns out to be only approximate. This paper proposes a more accurate method to determine carrier dynamics.
{"title":"Determining the carrier decay kinetics in QCSE-exhibiting materials: An accurate interpretation of transient absorption spectroscopy data","authors":"Ankit Udai, Tarni Aggarwal, Vikas Pendem, S. Ganguly, D. Saha","doi":"10.1109/PN52152.2021.9597914","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597914","url":null,"abstract":"Carrier dynamics is fundamental in the optimal performance of optoelectronic devices. TAS experiments can be used to study carrier dynamics at a particular wavelength. However, the $Delta alpha$ kinetics in QCSE-exhibiting materials turns out to be only approximate. This paper proposes a more accurate method to determine carrier dynamics.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"29 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81224309","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597978
S. Murshid, A. Atieh, Ming-Hsu Tu, S. Harish, C. Su
This presents the architecture, setup, and simulated results for a four-channel optical communications system that uses spatial domain multiplexing (SDM) in single-core optical fibers using commercially available OptiSystem software. The system components layout, simulated results, eye diagrams and the system bit error ratio (BER) for the individual channels are presented.
{"title":"Simulation of SDM Channels Using OptiSystem","authors":"S. Murshid, A. Atieh, Ming-Hsu Tu, S. Harish, C. Su","doi":"10.1109/PN52152.2021.9597978","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597978","url":null,"abstract":"This presents the architecture, setup, and simulated results for a four-channel optical communications system that uses spatial domain multiplexing (SDM) in single-core optical fibers using commercially available OptiSystem software. The system components layout, simulated results, eye diagrams and the system bit error ratio (BER) for the individual channels are presented.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"8 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82052682","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597895
P. Long, Q. Goher, M. Comanici, Lawrence R. Chen, M. Soltanian
We demonstrate second harmonic generation in a temperature-controlled MgO:PPLN crystal to obtain an output at 510 nm from a high-power polarization maintaining (PM) mode-locked fiber laser at 1020 nm with 35% conversion efficiency.
{"title":"1020 nm Pulsed Fiber Laser for High Efficiency Second Harmonic Generation","authors":"P. Long, Q. Goher, M. Comanici, Lawrence R. Chen, M. Soltanian","doi":"10.1109/PN52152.2021.9597895","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597895","url":null,"abstract":"We demonstrate second harmonic generation in a temperature-controlled MgO:PPLN crystal to obtain an output at 510 nm from a high-power polarization maintaining (PM) mode-locked fiber laser at 1020 nm with 35% conversion efficiency.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"39 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84744721","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597966
M. Dhouibi, S. Haffouz, J. Jin, L. Giner, K. Mnaymneh, P. Poole, D. Dalacu, A. Kalboussi, R.L. Williams
We report on temperature-dependent photoluminescence properties of a single $mathbf{In} mathbf{A s}_{mathbf{x}} mathbf{P}_{1-mathbf{x}} / mathbf{In} mathbf{A s} mathbf{y} mathbf{P}_{1-mathbf{y}}$ quantum dot-in-a-rod (DROD) nanowire emitting at 1310 nm. We will discuss the variation of the emission intensity, linewidth, peak energy and decay time of the exciton peak as a function of the temperature in the 4 - 120 K range. Strong emission from the DROD nanowire at 300 K is also observed. A relative quantum yield of about 61 % is measured at room temperature.
{"title":"Temperature-dependent photoluminescence of a dot-in-a-rod nanowire emitting at 1310nm","authors":"M. Dhouibi, S. Haffouz, J. Jin, L. Giner, K. Mnaymneh, P. Poole, D. Dalacu, A. Kalboussi, R.L. Williams","doi":"10.1109/PN52152.2021.9597966","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597966","url":null,"abstract":"We report on temperature-dependent photoluminescence properties of a single $mathbf{In} mathbf{A s}_{mathbf{x}} mathbf{P}_{1-mathbf{x}} / mathbf{In} mathbf{A s} mathbf{y} mathbf{P}_{1-mathbf{y}}$ quantum dot-in-a-rod (DROD) nanowire emitting at 1310 nm. We will discuss the variation of the emission intensity, linewidth, peak energy and decay time of the exciton peak as a function of the temperature in the 4 - 120 K range. Strong emission from the DROD nanowire at 300 K is also observed. A relative quantum yield of about 61 % is measured at room temperature.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"54 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83827531","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597989
H. Guerboukha, Yasith Amarasinghe, R. Shrestha, A. Pizzuto, D. Mittleman
We present a very simple, rapid and low-cost prototyping technique to make metallic 2D patterns for the terahertz range. We demonstrate arrays of split-ring resonators and wire-grid polarizers.
{"title":"Terahertz Metallic Metasurfaces Prototyping Using Hot Stamping","authors":"H. Guerboukha, Yasith Amarasinghe, R. Shrestha, A. Pizzuto, D. Mittleman","doi":"10.1109/PN52152.2021.9597989","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597989","url":null,"abstract":"We present a very simple, rapid and low-cost prototyping technique to make metallic 2D patterns for the terahertz range. We demonstrate arrays of split-ring resonators and wire-grid polarizers.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"64 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85226467","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597903
M. Mansourian, M. Zhuldybina, X. Ropagnol, N. D. Trinh, C. Bois, F. Blanchard
In this work, we have manufactured by industrial roll-to-roll press and characterized a printed polarizer working in the terahertz frequency range. A high degree of polarizability is found for frequencies up to 0.7 THz. An improvement in performance is demonstrated by the addition of a second polarizer layer.
{"title":"Fabrication and charactrization of a terahertz polarizer from a roll-to-roll printer","authors":"M. Mansourian, M. Zhuldybina, X. Ropagnol, N. D. Trinh, C. Bois, F. Blanchard","doi":"10.1109/PN52152.2021.9597903","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597903","url":null,"abstract":"In this work, we have manufactured by industrial roll-to-roll press and characterized a printed polarizer working in the terahertz frequency range. A high degree of polarizability is found for frequencies up to 0.7 THz. An improvement in performance is demonstrated by the addition of a second polarizer layer.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"22 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82063633","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 : 2021-05-31DOI: 10.1109/PN52152.2021.9597941
I. Alamgir, Md Hosne Mobarok Shamim, W. Correr, Y. Messaddeq, M. Rochette
We experimentally demonstrate that a supercontinuum becomes further broadened by using a dispersion varying nonlinear medium. Compared to constant dispersion designs, a power enhancement of 4.3 dB and bandwidth extension of 262 nm are obtained.
{"title":"Supercontinuum enhancement in dispersion-varying chalcogenide taper","authors":"I. Alamgir, Md Hosne Mobarok Shamim, W. Correr, Y. Messaddeq, M. Rochette","doi":"10.1109/PN52152.2021.9597941","DOIUrl":"https://doi.org/10.1109/PN52152.2021.9597941","url":null,"abstract":"We experimentally demonstrate that a supercontinuum becomes further broadened by using a dispersion varying nonlinear medium. Compared to constant dispersion designs, a power enhancement of 4.3 dB and bandwidth extension of 262 nm are obtained.","PeriodicalId":6789,"journal":{"name":"2021 Photonics North (PN)","volume":"1 1","pages":"1-1"},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87769946","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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