Pub Date : 2017-10-01DOI: 10.1109/IPCON.2017.8116218
Tao Jiang, M. Tang, R. Lin
Traditional OFDM techniques in VLC suffer from high PAPR and serious clipping distortion. In this paper, we propose a Precoded-DC-Biased Optical OFDM technique for VLC system. Numerical simulations are presented, proving substantial benefits in terms of PAPR and BER.
{"title":"Precoded-DC-biased optical OFDM system for visible light communications","authors":"Tao Jiang, M. Tang, R. Lin","doi":"10.1109/IPCON.2017.8116218","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8116218","url":null,"abstract":"Traditional OFDM techniques in VLC suffer from high PAPR and serious clipping distortion. In this paper, we propose a Precoded-DC-Biased Optical OFDM technique for VLC system. Numerical simulations are presented, proving substantial benefits in terms of PAPR and BER.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"60 1","pages":"549-550"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77184093","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 : 2017-10-01DOI: 10.1109/IPCON.2017.8116092
S. Haffouz, D. Dalacu, P. Poole, K. Mnaymneh, J. Lapointe, G. Aers, D. Poltras, R. Williams
Non-classical light sources that can produce streams of correlated on-demand photons are a central building block for optics based quantum information technologies. There are numerous possible approaches for producing such a light source. One of the most promising is the solid-state single photon source based on a single quantum dot in III-V semiconductors. Utilizing a single InAs quantum dot in an InP nanowire, we previously demonstrated a bright and efficient source for single photons [1] and entangled photon pairs [2] that emits around 950 nm. In order to interface with telecom systems, single photon sources emitting at longer wavelengths are required. A few works have extended the emission to the telecom band using a single InAs/InP quantum dot in a micro-cavity [3-4]. However, improving the source brightness and the extraction efficiency remains a challenging task. In this contribution, by modifying the growth conditions and the pre-growth pattern for an InAs dot in an InP nanowire, we demonstrate a bright light source that emits in the telecom O-band, an important step towards the demonstration of a single photon source.
{"title":"Bright single InAs quantum dots at telecom wavelengths in site-selective InP nanowires","authors":"S. Haffouz, D. Dalacu, P. Poole, K. Mnaymneh, J. Lapointe, G. Aers, D. Poltras, R. Williams","doi":"10.1109/IPCON.2017.8116092","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8116092","url":null,"abstract":"Non-classical light sources that can produce streams of correlated on-demand photons are a central building block for optics based quantum information technologies. There are numerous possible approaches for producing such a light source. One of the most promising is the solid-state single photon source based on a single quantum dot in III-V semiconductors. Utilizing a single InAs quantum dot in an InP nanowire, we previously demonstrated a bright and efficient source for single photons [1] and entangled photon pairs [2] that emits around 950 nm. In order to interface with telecom systems, single photon sources emitting at longer wavelengths are required. A few works have extended the emission to the telecom band using a single InAs/InP quantum dot in a micro-cavity [3-4]. However, improving the source brightness and the extraction efficiency remains a challenging task. In this contribution, by modifying the growth conditions and the pre-growth pattern for an InAs dot in an InP nanowire, we demonstrate a bright light source that emits in the telecom O-band, an important step towards the demonstration of a single photon source.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"86 1-2 1","pages":"253-254"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78051042","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 : 2017-10-01DOI: 10.1109/IPCON.2017.8115984
M. Lo, R. Guzman, C. Gordón, Muhsin Ali, G. Carpintero
A monolithically integrated mode-locked laser cavity design with coupled feedback is proposed. It features switchable repetition rate. Optical frequency combs with mode spacing of 50 and 100 GHz are demonstrated. 350-GHz and 450GHz pulse trains are shown through autocorrelation traces.
{"title":"Self-coupled mode-locked laser with switchable repetition-rate for mmW/THz pulse generation","authors":"M. Lo, R. Guzman, C. Gordón, Muhsin Ali, G. Carpintero","doi":"10.1109/IPCON.2017.8115984","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8115984","url":null,"abstract":"A monolithically integrated mode-locked laser cavity design with coupled feedback is proposed. It features switchable repetition rate. Optical frequency combs with mode spacing of 50 and 100 GHz are demonstrated. 350-GHz and 450GHz pulse trains are shown through autocorrelation traces.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"6 1","pages":"15-16"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72798391","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 : 2017-10-01DOI: 10.1109/IPCON.2017.8116080
M. Mahmoud, Christian G. Bottenfield, L. Cai, G. Piazza
An asymmetric Mach-Zehnder electro-optic modulator is fabricated through etching in 500nm thin film of Y-cut Lithium Niobate. A half wave voltage length product of 16.8Vcm and modulation efficiency of 9.4×10−3V−1 were measured for this device which is very close to what we expect from theory.
{"title":"Fully integrated lithium niobate electro-optic modulator based on asymmetric Mach-Zehnder interferometer etched in LNOI platform","authors":"M. Mahmoud, Christian G. Bottenfield, L. Cai, G. Piazza","doi":"10.1109/IPCON.2017.8116080","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8116080","url":null,"abstract":"An asymmetric Mach-Zehnder electro-optic modulator is fabricated through etching in 500nm thin film of Y-cut Lithium Niobate. A half wave voltage length product of 16.8Vcm and modulation efficiency of 9.4×10<sup>−3</sup>V<sup>−1</sup> were measured for this device which is very close to what we expect from theory.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"81 1","pages":"223-224"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80907658","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 : 2017-10-01DOI: 10.1109/IPCON.2017.8116071
J. McKinney, Ross T. Schermar
Photonic sampling techniques for wideband signal detection have gained substantial interest in recent history. This talk will detail work at the U.S. Naval Research Laboratory in using sub-Nyquist sampled optical links to achieve signal detection and disambiguation across a > 40 GHz instantaneous bandwidth.
{"title":"Sub-sampled optical techniques for wideband spectral monitoring","authors":"J. McKinney, Ross T. Schermar","doi":"10.1109/IPCON.2017.8116071","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8116071","url":null,"abstract":"Photonic sampling techniques for wideband signal detection have gained substantial interest in recent history. This talk will detail work at the U.S. Naval Research Laboratory in using sub-Nyquist sampled optical links to achieve signal detection and disambiguation across a > 40 GHz instantaneous bandwidth.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"35 1","pages":"205-206"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74496814","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 : 2017-10-01DOI: 10.1109/IPCON.2017.8116166
C. Grein
The modeling of molecular beam epitaxial (MBE) growth has potential benefits in identifying optimal growth conditions and predicting atomic-scale defects that may form in actual growth. We describe the use of simulation software to conduct realistic atomic-scale MBE growth simulations of Type II infrared superlattices.
{"title":"Simulation of molecular beam epitaxy type II infrared superlattice growth","authors":"C. Grein","doi":"10.1109/IPCON.2017.8116166","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8116166","url":null,"abstract":"The modeling of molecular beam epitaxial (MBE) growth has potential benefits in identifying optimal growth conditions and predicting atomic-scale defects that may form in actual growth. We describe the use of simulation software to conduct realistic atomic-scale MBE growth simulations of Type II infrared superlattices.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"23 1","pages":"417-417"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78198951","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 : 2017-10-01DOI: 10.1109/IPCON.2017.8116066
R. B. Ramirez, M. Plascak, K. Bagnell, A. Bhardwaj, J. Ferrara, G. Hoefler, Ming C. Wu, P. Delfyett
We report the stabilization of a 10 GHz monolithic passively mode-locked laser using a novel combination of multitone injection locking and regenerative mode-locking via optoelectronic loop. Comb-teeth linewidths are narrowed by 4000x and repetition rate is stabilized to better than 10−10/τ at 1 second.
{"title":"Regenerative multi-tone injection locking for linewidth enhancement and repetition rate stabilization of a PIC mode-locked laser","authors":"R. B. Ramirez, M. Plascak, K. Bagnell, A. Bhardwaj, J. Ferrara, G. Hoefler, Ming C. Wu, P. Delfyett","doi":"10.1109/IPCON.2017.8116066","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8116066","url":null,"abstract":"We report the stabilization of a 10 GHz monolithic passively mode-locked laser using a novel combination of multitone injection locking and regenerative mode-locking via optoelectronic loop. Comb-teeth linewidths are narrowed by 4000x and repetition rate is stabilized to better than 10−10/τ at 1 second.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"41 1","pages":"195-196"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77557479","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 : 2017-10-01DOI: 10.1109/IPCON.2017.8115988
C. Artur, Tasha R Womack, Jingting Li Jason Eriksen, D. Mayerich, Wei-Chuan Shih
Expansion microscopy (ExM) is a new tissue preparation technique that has the potential to revolutionize immunofluorescence imaging for histology [1, 2]. By physically expanding a biological specimen embedded in a dense swellable polymer, one can achieve an effective increase in resolution of «5X using an ordinary fluorescence microscope. The probes used for immunofluorescence in ExM are standard fluorescent conjugated antibodies and proteins. The photosensitivity of these fluorophores limit their usable lifetime and emission brightness. These limitations significantly reduce their effectiveness in ExM since the 5X lateral expansion results in an ≈125X reduction in signal per focal volume. In addition, traditional fluorophores have broad excitation and emission spectra that limit multiplex imaging to the number of spectra that can “fit” into the spectral bandwidth, largely comprising visible wavelengths.
{"title":"Hyperspectral expansion microscopy","authors":"C. Artur, Tasha R Womack, Jingting Li Jason Eriksen, D. Mayerich, Wei-Chuan Shih","doi":"10.1109/IPCON.2017.8115988","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8115988","url":null,"abstract":"Expansion microscopy (ExM) is a new tissue preparation technique that has the potential to revolutionize immunofluorescence imaging for histology [1, 2]. By physically expanding a biological specimen embedded in a dense swellable polymer, one can achieve an effective increase in resolution of «5X using an ordinary fluorescence microscope. The probes used for immunofluorescence in ExM are standard fluorescent conjugated antibodies and proteins. The photosensitivity of these fluorophores limit their usable lifetime and emission brightness. These limitations significantly reduce their effectiveness in ExM since the 5X lateral expansion results in an ≈125X reduction in signal per focal volume. In addition, traditional fluorophores have broad excitation and emission spectra that limit multiplex imaging to the number of spectra that can “fit” into the spectral bandwidth, largely comprising visible wavelengths.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"2 1","pages":"23-24"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79125898","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 : 2017-10-01DOI: 10.1109/PC2.2017.8283361
Juerg Leuthold, C. Hoessbacher, W. Heni, C. Haffner, Y. Salamin, U. Koch, M. Ayata, Y. Fedoryshyn, B. Baeuerle, A. Josten, D. Elder, Larry R. Dalton
Plasmonic interconnects are proposed as a solution to offer interconnect densities not to be matched by electronics and with bandwidths exceeding 100 GHz. Key elements such as ultrafast and compact plasmonic modulators and detectors have already been tested and first demonstrations confirm the viability of the technology.
{"title":"Plasmonic interconnects - a dense and fast interconnect solution","authors":"Juerg Leuthold, C. Hoessbacher, W. Heni, C. Haffner, Y. Salamin, U. Koch, M. Ayata, Y. Fedoryshyn, B. Baeuerle, A. Josten, D. Elder, Larry R. Dalton","doi":"10.1109/PC2.2017.8283361","DOIUrl":"https://doi.org/10.1109/PC2.2017.8283361","url":null,"abstract":"Plasmonic interconnects are proposed as a solution to offer interconnect densities not to be matched by electronics and with bandwidths exceeding 100 GHz. Key elements such as ultrafast and compact plasmonic modulators and detectors have already been tested and first demonstrations confirm the viability of the technology.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"37 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73758182","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 : 2017-10-01DOI: 10.1109/IPCON.2017.8116260
B. M. Kurade, Nidhin Prasad, G. T. Raja, S. Varshney
We propose an extremely large mode-area compact hybrid multi-trench fiber with ∼40μm core at 1064nm. High-index arc in trench helps to achieve modearea of 1300μm2 at a practical bending radius of 7.5cm. Resonant rings and trench gaps maintain effectively single-mode operation and bending loss constraints.
{"title":"Extremely large mode-area compact hybrid multi-trench fiber with controlled leakage loss","authors":"B. M. Kurade, Nidhin Prasad, G. T. Raja, S. Varshney","doi":"10.1109/IPCON.2017.8116260","DOIUrl":"https://doi.org/10.1109/IPCON.2017.8116260","url":null,"abstract":"We propose an extremely large mode-area compact hybrid multi-trench fiber with ∼40μm core at 1064nm. High-index arc in trench helps to achieve modearea of 1300μm2 at a practical bending radius of 7.5cm. Resonant rings and trench gaps maintain effectively single-mode operation and bending loss constraints.","PeriodicalId":6657,"journal":{"name":"2017 IEEE Photonics Conference (IPC) Part II","volume":"15 1","pages":"639-640"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74875606","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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