{"title":"Superchannel multiplexing using programmable multicast beamsteering in LCoS WSS","authors":"Brian J. Smith, P. Roorda, Dan Burke","doi":"10.1109/PN.2017.8090564","DOIUrl":"https://doi.org/10.1109/PN.2017.8090564","url":null,"abstract":"A method is presented for Nyquist superchannel combination within a WSS that avoids crosstalk, noise and loss issues of passive combiners.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"92 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132773091","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}
K. Nallappan, Jingwen Li, H. Guerboukha, A. Markov, B. Petrov, D. Morris, M. Skorobogatiy
{"title":"A dynamically reconfigurable terahertz array antenna for 2D-imaging applications","authors":"K. Nallappan, Jingwen Li, H. Guerboukha, A. Markov, B. Petrov, D. Morris, M. Skorobogatiy","doi":"10.1109/PN.2017.8090603","DOIUrl":"https://doi.org/10.1109/PN.2017.8090603","url":null,"abstract":"An array of dipole antenna for multichannel near field imaging has been designed, fabricated and characterized using Terahertz time domain spectroscopy (THz-TDS) system. A 2D Terahertz image using the designed antenna can be obtained by reconfiguring the wavefront of the optical probe beam using the spatial light modulator. As a proof of concept, the THz spectrum of one of the dipole antenna is measured and presented.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"773 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133493180","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}
{"title":"All-optical wavelength conversion using a liquid-filled photonic crystal fiber","authors":"Y. E. Monfared, S. Ponomarenko","doi":"10.1109/PN.2017.8090575","DOIUrl":"https://doi.org/10.1109/PN.2017.8090575","url":null,"abstract":"We theoretically investigate widely tunable wavelength conversion based on four-wave mixing using a carbon-disulfide-filled photonic crystal fiber (CS2-PCF). We designed a CS2-PCF with nonlinear coefficient of 7740 W−1km−1, nearly-zero dispersion of 0.00007 ps/(nm km) and a dispersion slope of 0.000018 near 1550 nm. Considering the effect of nonlinear optical response of CS2, a 2-meter-long CS2-PCF is used as a nonlinear medium for wavelength conversion of a 10 Gb/s non-re turn-to-zero (NRZ) signal. A 3-dB tunable wavelength conversion bandwidth is about 108 nm and the conversion efficiency is about −10.6 dB when the pump power is only 14 dBm. The eye diagrams show that there is no additional noise during wavelength conversion. Simulations show the feasibility of even higher bit rates (up to 100 Gb/s) operation by using appropriate input pulses.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"332 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122841426","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}
{"title":"Lossless encoding compressed ultrafast photography: Capturing light-speed scattering dynamics in a snapshot","authors":"Jinyang Liang","doi":"10.1109/PN.2017.8090596","DOIUrl":"https://doi.org/10.1109/PN.2017.8090596","url":null,"abstract":"We have developed lossless compressed ultrafast photography (LLE-CUP), a single-shot receive-only ultrafast imaging modality with an imaging speed of 100 billion frames per second. Using LLE-CUP, we have imaged, for the first time, a scattering-induced propagating photonic Mach cone in real time.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125428335","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}
{"title":"Plasmonic metasurfaces for nonlinear beam shaping","authors":"Antonio Calà Lesina, P. Berini, L. Ramunno","doi":"10.1109/PN.2017.8090590","DOIUrl":"https://doi.org/10.1109/PN.2017.8090590","url":null,"abstract":"Controlling the nonlinear emission from each meta-atom in a metasurface is explored for the shaping of far-field nonlinear radiation. By arranging gold gap-nanostructures on a surface and by exploiting the nonlinear emission from the metal or from the gap material, we numerically demonstrate the creation of highly pure vortex beams at frequencies not accessible by linear plasmonics.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127961885","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}
{"title":"Ray optimization of Gaussian beams","authors":"Paul D. Colboume","doi":"10.1109/PN.2017.8090552","DOIUrl":"https://doi.org/10.1109/PN.2017.8090552","url":null,"abstract":"A ray-based method is presented for optimizing optical systems employing Gaussian beams. The selection of rays to use for optimization is discussed.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134564612","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}
{"title":"Double-heralded single photons by cascaded downconversion","authors":"Patrick F. Poitras, D. Hamel, E. Meyer-Scott","doi":"10.1109/PN.2017.8090567","DOIUrl":"https://doi.org/10.1109/PN.2017.8090567","url":null,"abstract":"Heralded single photon sources are the subject of intense research owing to their usefulness in metrology and quantum information. These are often created using a pair of photons produced by spontaneous parametric downconversion (SPDC), from which one photon is used to certify the presence of the other. However, multiple-pair production and detector dark counts limit the quality of such sources. Here, we investigate whether cascading two downconversion events to precertify the presence of a photon pair would allow us to reduce these effects. Using analytical calculations and simulations, we find that higher purity photons, as quantified by the heralded second order correlation function, can be obtained for some detector performance ranges.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132868736","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}
{"title":"Determination of biomolecular interaction kinetics using surface plasmon waveguides","authors":"M. Khodami, P. Berini","doi":"10.1109/PN.2017.8090584","DOIUrl":"https://doi.org/10.1109/PN.2017.8090584","url":null,"abstract":"A new optical biosensor technology based on surface plasmon waveguides, composed of gold stripes embedded in CYTOP, is used to measure the kinetics constants of BSA and Anti-BSA interaction. The binding curves showing this interaction are obtained by recording the output power continuously over time. The binding curves are then converted into surface mass concentration. The binding kinetics are extracted from such curves using the integrated rate equation.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133730490","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}
P. Anandarajah, M. Deseada Gutierrez Pascual, S. O’duill, Jules Bradell, F. Smyth, P. Landais
{"title":"Integrated frequency combs for flexible optical networks","authors":"P. Anandarajah, M. Deseada Gutierrez Pascual, S. O’duill, Jules Bradell, F. Smyth, P. Landais","doi":"10.1109/PN.2017.8090555","DOIUrl":"https://doi.org/10.1109/PN.2017.8090555","url":null,"abstract":"Optical frequency comb (OFC) sources have proven to be useful in applications such as frequency metrology [1], spectroscopy [2], millimetre wave generation [3] and dense/ultra-dense wavelength division multiplexed high speed optical communications [4]. These applications require highly coherent, stable and cost efficient optical comb sources. Other important comb parameters include a flexible free spectral range (FSR) and uniform power distribution amongst the frequency components. Typical OFC sources generate multiple optical carriers offering low power consumption and complexity by replacing multiple independent lasers with a single subsystem. Therefore, OFCs ensure constant and stable frequency spacing between the carriers enabling the reduction or elimination of guard bands in advanced multicarrier modulation techniques. In order to enable/enhance the practical use of comb sources in >100G next generation optical transport networks, a key issue to be considered is the footprint/compactness of the device as this directly relates to the ease of manufacturing (cost), power consumption, and reliability. Therefore, monolithically integrated comb sources [5, 6] with simple and compact designs could be highly beneficial. In this work, the authors present the optimum features of an integrated externally injected master slave laser [7] used to generate a gain switched optical frequency comb [8]. In addition, the employment of this comb in a flexible optical networking environment will be reviewed and experimental results presented.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130010241","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}
Mathieu Huneault, M. Olivier, M. Piché, G. Brochu, A. Villeneuve
{"title":"Numerical investigation of the Raman instability in high-power CW ytterbium-doped fiber lasers","authors":"Mathieu Huneault, M. Olivier, M. Piché, G. Brochu, A. Villeneuve","doi":"10.1109/PN.2017.8090569","DOIUrl":"https://doi.org/10.1109/PN.2017.8090569","url":null,"abstract":"A numerical model of a high power CW ytterbium-doped fiber laser has been developed using the split-step Fourier method. Stimulated Raman scattering (SRS) is included in the model via the well-known Raman transfer function of silica fibers. The parameters of the gain fiber and of the fiber Bragg gratings are varied in order to minimize the impact of SRS on the spectral content of laser emission.","PeriodicalId":153736,"journal":{"name":"2017 Photonics North (PN)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122185838","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}