The University of Southampton
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+442380592610
Email:
g.jasion@soton.ac.uk

Dr Gregory Jasion

Research Staff

Dr Gregory Jasion obtained his MEng in Aerospace engineering at the University of Southampton in 2008. He completed his PhD on helicopter dust entrainment in 2013 during which he developed and contributed to several codes for the simulation of multiphase and granular flow.

Greg subsequently joined the Microstructured Optical Fibres group at the ORC as a specialist in numerical modelling of multiphase flow applied to fused glass and fibre drawing. In 2016 he was awarded a Research Fellowship from the Royal Academy of Engineering to develop hollow core fibres for high power laser delivery.

Publications

Jasion, G., Shrimpton, J., Danby, M. and Takeda, K. (2011) Performance of numerical integrators on tangential motion of DEM within implicit flow solvers Computers and Chemical Engineering (doi:10.1016/j.compchemeng.2011.02.017).

Shrimpton, J.S. and Jasion, G. (2012) Prediction of brownout inception beneath a full-scale helicopter downwash Journal of the American Helicopter Society, 57, (4), pp. 1-13. (doi:10.4050/JAHS.57.042006).

Shrimpton, J.S., Danby, M. and Jasion, G. (2013) Suitability of parameters and models in the discrete element method for simulation of mesoscale powder indentation experiments Computers and Chemical Engineering, 56, pp. 89-100. (doi:10.1016/j.compchemeng.2013.05.015).

Jasion, G. (2013) Toward a physics based entrainment model for simulation of helicopter brownout University of Southampton, Faculty of Engineering and the Environment, Doctoral Thesis , 214pp.

Shrimpton, J.S., Jasion, G., Yang, Shoufeng and Li, Z. (2013) On the bridging mechanism in vibration controlled dispensing of pharmaceutical powders from a micro hopper Powder Technology, 249, pp. 24-37. (doi:10.1016/j.powtec.2013.07.027).

Sandoghchi, S.R., Zhang, T., Wooler, J.P., Baddela, N.K., Wheeler, N.V., Chen, Y., Jasion, G., Gray, D.R., Numkam Fokoua, E., Hayes, J.R., Petrovich, M.N., Poletti, F. and Richardson, D.J. (2014) First investigation of longitudinal defects in hollow core photonic bandgap fibers At Conference on Optical Fibre Communications OFC '14, United States. 09 - 13 Mar 2014. , M2F.6.

Jasion, G., Sandoghchi, Seyed Reza, Chen, Y., Wheeler, N.V., Bradley, T., Baddela, N., Hayes, J., Petrovich, M.N., Richardson, D.J., Shrimpton, J.S. and Poletti, F. (2014) Novel fluid dynamics model to predict draw of hollow core photonic band-gap fibres At European Conference on Optical Communications (ECOC), France. 21 - 25 Sep 2014.

Sandoghchi, S.R., Jasion, G., Wheeler, N.V., Wooler, J.P., Boardman, R.P., Baddela, N., Chen, Y., Hayes, J., Numkam Fokoua, E., Bradley, T., Gray, T., Abokhamis Mousavi, S., Petrovich, M., Poletti, F. and Richardson, D.J. (2014) X-Ray tomography for structural analysis of microstructured optical fibres and preforms At European Conference on Optical Communications (ECOC), France. 21 - 25 Sep 2014.

Gray, D.R., Sandoghchi, Seyed Reza, Wheeler, N.V., Jasion, G., Wooler, J.P., Petrovich, M.N., Poletti, F. and Richardson, D.J. (2014) Towards real-time mode content characterization of multimode fibers At European Conference on Optical Communication (ECOC). 21 - 25 Sep 2014.

Sandoghchi, S.R., Jasion, G., Wheeler, N.V., Jain, S., Lian, Z., Wooler, J.P., Boardman, R.P., Baddela, N., Chen, Y., Hayes, J., Numkam Fokoua, E., Bradley, T., Gray, D.R., Abokhamis Mousavi, S., Petrovich, M., Poletti, F. and Richardson, D.J. (2014) X-ray tomography for structural analysis of microstructured and multimaterial optical fibers and preforms Optics Express, 22, (21), pp. 26181-26192. (doi:10.1364/OE.22.026181).

Poletti, F., Jasion, G., Numkam Fokoua, E., Sandoghchi, Seyed Reza, Chen, Y., Wheeler, N.V., Baddela, N.K., Hayes, J.R., Bradley, T., Petrovich, M.N. and Richardson, D.J. (2014) Hollow core fibre technology for data transmission At Asia Communications and Photonics Conference (ACP), China. 11 - 14 Nov 2014.

Gray, D.R., Sandoghchi, S.R., Wheeler, N.V., Baddela, N.K., Jasion, G., Petrovich, M.N., Poletti, F. and Richardson, D.J. (2015) Accurate calibration of S2 and interferometry based multimode fiber characterization techniques Optics Express, 23, (8), pp. 10540-10552. (doi:10.1364/OE.23.010540).

Jasion, Gregory, Numkam Fokoua, Eric, Shrimpton, John, Richardson, David and Poletti, Francesco (2015) Studying the Limits of Production Rate and Yield for the Volume Manufacturing of Hollow Core Photonic Band Gap Fibers University of Southampton doi:10.5258/SOTON/377858 [Dataset]

Jasion, G., Shrimpton, J.S., Chen, Y., Bradley, T., Richardson, D.J. and Poletti, F. (2015) MicroStructure Element Method (MSEM): viscous flow model for the virtual draw of microstructured optical fibers Optics Express, 23, (1), pp. 312-329. (doi:10.1364/OE.23.000312).

Chen, Yong, Liu, Zhixin, Sandoghchi, Seyed Reza, Jasion, Gregory, Bradley, Thomas, Numkam Fokoua, Eric, Hayes, John, Wheeler, Natalie, Gray, David, Robert, Mangan, Brian, Slavik, Radan, Poletti, Francesco, Petrovich, Marco and Richardson, David (2015) Data for Multi-kilometer long, longitudinally uniform Hollow Core Photonic Bandgap Fibers for broadband low latency data transmission University of Southampton doi:10.5258/SOTON/378704 [Dataset]

Chen, Y., Liu, Z., Sandoghchi, S.R., Jasion, G., Bradley, T.D., Numkam Fokoua, Eric, Hayes, J.R., Wheeler, N.V., Gray, D.R., Mangan, B.J., Slavík, R., Poletti, F., Petrovich, M.N. and Richardson, D.J. (2015) Demonstration of an 11km hollow core photonic bandgap fiber for broadband low-latency data transmission At OFC 15, United States. 22 - 26 Mar 2015. 3 pp.

Jasion, G., Poletti, F., Shrimpton, J. and Richardson, D.J. (2015) Volume manufacturing of hollow core photonic band gap fibers: challenges and opportunities At OFC '15, United States. 22 - 26 Mar 2015. 3 pp.

Jasion, G., Numkam Fokoua, Eric, Shrimpton, John S., Richardson, Dave J. and Poletti, Francesco (2015) Studying the limits of production rate and yield for the volume manufacturing of hollow core photonic band gap fibers Optics Express, 23, (25), 32179 -32190. (doi:10.1364/OE.23.032179).

Gray, D.R., Petrovich, M.N., Sandoghchi, S.R., Wheeler, N.V., Baddela, N.K., Jasion, G., Bradley, T., Richardson, D.J. and Poletti, F. (2016) Real-time modal analysis via wavelength-swept spatial and spectral (S2) imaging IEEE Photonics Technology Letters, pp. 1-4. (Submitted).

Gray, D.R., Sandoghchi, S.R., Wheeler, N.V., Baddela, N.K., Jasion, G., Petrovich, M.N., Poletti, F. and Richardson, D.J. (2015) Mitigating spectral leakage and sampling errors in spatial and spectral (S2) imaging At OFC '15, United States. 22 - 26 Mar 2015. 3 pp.

Sandoghchi, Seyed Reza, Petrovich, Marco, Gray, David, Robert, Chen, Y., Wheeler, Natalie, Bradley, Thomas, Wong, Nicholas, Heng Loong, Jasion, Gregory, Hayes, John, Numkam Fokoua, Eric, Botelho Alonso, Marcelo, Abokhamis Mousavi, Seyedmohammad, Richardson, David and Poletti, Francesco (2015) Optical side scattering radiometry for high resolution, wide dynamic range longitudinal assessment of optical fibers University of Southampton doi:10.5258/SOTON/379739 [Dataset]

Jasion, G., Numkam Fokoua, Eric, Shrimpton, John S., Richardson, David J. and Poletti, Francesco (2015) Combined structural and optical modelling tool to optimise design and fabrication of hollow core photonic band gap fibres At Optical Communication (ECOC), 2015 European Conference on, Spain. 27 Sep - 01 Oct 2015. 3 pp, pp. 1-3.

Numkam Fokoua, Eric, Sandoghchi, Seyed Reza, Chen, Yong, Jasion, Gregory T., Wheeler, Natalie V., Baddela, Naveen K., Hayes, John R., Petrovich, Marco N., Richardson, David J. and Poletti, Francesco (2015) Accurate modelling of fabricated hollow-core photonic bandgap fibers Optics Express, 23, (18), p. 23117. (doi:10.1364/OE.23.023117).

Chen, Yong, Liu, Zhixin, Sandoghchi, Seyed Reza, Jasion, G., Bradley, Thomas, Numkam Fokoua, Eric, Hayes, John, Wheeler, Natalie, Gray, David, Mangan, Brian, Slavík, Radan, Poletti, Francesco, Petrovich, Marco and Richardson, David (2015) Multi-kilometer long, longitudinally uniform Hollow Core Photonic Bandgap Fibers for broadband low latency data transmission Journal of Lightwave Technology, pp. 1-10.

Sandoghchi, S.R., Jasion, G., Wheeler, N.V., Wooler, J.P., Boardman, R.P., Baddela, N., Chen, Y., Hayes, J.R., Numkam Fokoua, E., Bradley, T., Gray, T., Abokhamis Mousavi, S., Petrovich, M.N., Poletti, F. and Richardson, D.J. (2014) X-ray computational tomography of hollow core photonic bandgap fibre At 3rd EPSRC Manufacturing the Future Conference, United Kingdom. 23 - 24 Sep 2014.

Sandoghchi, S.R., Petrovich, M.N., Gray, D.R., Chen, Y., Wheeler, N.V., Bradley, T.D., Wong, N.H.L., Jasion, G., Hayes, J.R., Numkam Fokoua, E., Gouveia, M. Botelho Alonso, Abokhamis Mousavi, S.M., Richardson, D.J. and Poletti, F. (2015) Optical side scattering radiometry for high resolution, wide dynamic range longitudinal assessment of optical fibers Optics Express, 23, (21), pp. 27960-27974.

Richardson, David J., Chen, Yong, Wheeler, Natalie, Hayes, John, Bradley, Tom, Liu, Zhixin, Sandoghchi, Seyed Reza, Jasion, G., Numkam Fokoua, Eric, Gray, David, Slavík, Radan, Jung, Yongmin, Wong, Nicholas, Poletti, Francesco and Petrovich, Marco (2015) Photonic bandgap fibres for low-latency data transmission At The European Conference on Optical Communication (ECOC'15), Spain. 27 Sep - 01 Oct 2015.

Kuschnerov, Maxim, Sleiffer, Vincent, Chen, Yingkan, Man, Erik de, Chen, Yong, Liu, Zhixin, Sandoghchi, Seyed Reza, Jasion, G., Bradley, T., Numkam Fokoua, Eric, Hayes, John, Wheeler, Natalie, Gray, David, Slavík, Radan, Jung, Yongmin, Wong, Nicholas, Mangan, Brian, Poletti, Francesco, Petrovich, Marco and Richardson, David (2015) Data transmission through up to 74.8 km of hollow-core fiber with coherent and direct-detect transceivers At The European Conference on Optical Communication (ECOC'15), Spain. 27 Sep - 01 Oct 2015.

Bradley, Thomas, Wheeler, Natalie, Jasion, Gregory, Gray, David, Robert, Hayes, John, Gouveia, Marcelo (Botelho) Alonso, Sandoghchi, Seyed Reza, Chen, Yong, Poletti, Francesco, Petrovich, Marco and Richardson, David (2016) Dataset for Modal Content in Hypocycloid Kagomé Hollow Core Photonic Crystal Fibers University of Southampton doi:10.5258/SOTON/389700 [Dataset]

Bradley, Thomas, Wheeler, Natalie, Jasion, G., Gray, David, Hayes, John, Gouveia, Marcelo Botelho Alonso, Sandoghchi, Seyed Reza, Chen, Yong, Poletti, Francesco, Richardson, David and Petrovich, Marco (2016) Modal content in hypocycloid Kagomé hollow core photonic crystal fibers Optics Express, pp. 1-15.

Hayes, John, Sandoghchi, Seyed Reza, Bradley, Thomas, Liu, Zhixin, Slavík, Radan, Gouveia, Marcelo A., Wheeler, Natalie, Jasion, G., Chen, Yong, Numkam Fokoua, Eric, Petrovich, Marco, Richardson, David and Poletti, Francesco (2016) Antiresonant hollow core fiber with octave spanning bandwidth for short haul data communications At Optical Fiber Communications (OFC 2016) Postdeadline Papers, Anaheim, CA. 20 Mar 2016. 3 pp.

Wheeler, Natalie, Chen, Yong, Hayes, John, Sandoghchi, Seyed Reza, Jasion, G., Bradley, Thomas, Numkam Fokoua, Eric, Baddela, Naveen, Gray, David, Liu, Zhixin, Jung, Yongmin, Alam, Shaif-ul, Slavík, Radan, Poletti, Francesco, Petrovich, Marco and Richardson, David (2016) High capacity, low latency data transmission using hollow core photonic bandgap fibers At Optical Fiber Communication Conference (OFC) 2016, Anaheim, CA. 20 - 24 Mar 2016. 3 pp. (doi:10.1364/OFC.2016.Th4E.1).

Sandoghchi, Seyed Reza, Gray, David, Chen, Yong, Wheeler, Natalie, Bradley, Thomas, Hayes, John, Numkam Fokoua, Eric, Jasion, G., Abokhamis Mousavi, S.M., Petrovich, Marco and Poletti, Francesco (2015) High dynamic range technique for discrete and distributed scattering loss measurement in microstructured optical fibres At European Conference on Optical Communication (ECOC'15). 27 Sep - 01 Oct 2015.

Wheeler, Natalie, Bradley, Thomas, Hayes, John, Jasion, G., Chen, Yong, Sandoghchi, Seyed Reza, Horak, Peter, Poletti, Francesco, Petrovich, Marco and Richardson, David (2016) Dual hollow-core anti-resonant fibres At SPIE Photonics Europe 2016, Belgium. 03 - 07 Apr 2016. 7 pp. (doi:10.1117/12.2225589).

Chen, Yong, Sandoghchi, Seyed Reza, Numkam Fokoua, Eric, Bradley, Thomas, Hayes, John, Wheeler, Natalie, Jasion, G., Gray, David, Poletti, Francesco, Petrovich, Marco and Richardson, David (2016) Detailed study of macrobending effects in a wide transmission bandwidth hollow-core photonic bandgap fiber At SPIE Photonics Europe 2016, Belgium. 03 - 07 Apr 2016. 6 pp.

Chen, Yong, Mulvad, Hans Christian, Sandoghchi, Seyed Reza, Numkam Fokoua, Eric, Bradley, Thomas, Hayes, John, Wheeler, Natalie, Jasion, G., Alam, Shaif-ul, Poletti, Francesco, Petrovich, Marco and Richardson, David (2016) First demonstration of low loss, bend insensitive 37-cell hollow-core photonic bandgap fiber at 1µm for high power delivery applications At Conference on Lasers and Electro-Optics 2016, San Jose, United States. 05 - 10 Jun 2016. 2 pp.

Bradley, Thomas, Wheeler, Natalie V., Jasion, G., Gray, David, Hayes, John, Botelho Alonso, Marcelo, Sandoghchi, Seyed Reza, Chen, Yong, Poletti, Francesco, Petrovich, Marco and Richardson, David (2016) S2 measurement of higher order mode content in low loss hypocycloid Kagomé hollow core photonic crystal fiber At Conference on Lasers and Electro-Optics 2016, San Jose, United States. 05 - 10 Jun 2016. 2 pp.

Numkam Fokoua, Eric, Jasion, G., Chen, Yong, Sandoghchi, Seyed Reza, Bradley, Thomas, Wheeler, Natalie, Hayes, John, Petrovich, Marco, Richardson, David and Poletti, Francesco (2016) Recent advances in hollow fiber technology for telecoms applications At 2016 IEEE Summer Topical Meetings Series, United States. 11 - 13 Jul 2016. 1 pp.

Hayes, John, Sandoghchi, Seyed Reza, Bradley, Thomas, Liu, Zhixin, Slavik, Radan, Gouveia, Marcelo Alonso, Wheeler, Natalie, Jasion, Gregory, Chen, Yong, Numkam Fokoua, Eric, Petrovich, Marco, Richardson, David and Poletti, Francesco (2016) Antiresonant hollow core fiber with an octave spanning bandwidth for short haul data communications University of Southampton doi:10.5258/SOTON/397853 [Dataset]

Chen, Yong, Petrovich, Marco, Sandoghchi, Seyed Reza, Bradley, Thomas, Hayes, John, Wheeler, Natalie, Numkam Fokoua, Eric, Jasion, G., Mulvad, Hans Christian, Liu, Zhixin, Alam, Shaif-ul, Slavík, Radan, Poletti, Francesco and Richardson, David (2016) Recent advances in the development of high performance hollow-core photonic bandgap fibres At ICTON 2016, Italy. 10 - 14 Jul 2016.

Scott, Mark, Boardman, Richard P., Reed, Philippa A.S., Byatt, Dorothy, Stark, Isobel, Cox, Simon J., Coles, Simon J., Collins, Andrew, Earl, Graeme P., Jasion, G., Mbuya, Thomas O. and Soady, Katherine A. (2016) Introducing research data - fourth edition , Southampton, GB University of Southampton 37pp.

Hayes, J.R., Sandoghchi, S.R., Bradley, T.D., Liu, Z., Slavík, R., Gouveia, M.A., Wheeler, N.V., Jasion, G., Chen, Y., Numkam Fokoua, Eric, Petrovich, M.N., Richardson, D.J. and Poletti, F. (2017) Antiresonant hollow core fiber with an octave spanning bandwidth for short haul data communications Journal of Lightwave Technology, 35, (3), pp. 437-442.

Richardson, David, Wheeler, Natalie, Chen, Yong, Hayes, John, Sandoghchi, Seyed Reza, Jasion, Gregory, Bradley, Thomas, Numkam Fokoua, Eric, Liu, Zhixin, Slavík, Radan, Horak, Peter, Petrovich, Marco and Poletti, Francesco (2017) Hollow core fibres and their applications At OFC 2017, Los Angeles. 19 - 23 Mar 2017.

Richardson, David J., Chen, Yong, Numkam Fokoua, Eric, Wheeler, Natalie V., Baddela, Naveen K., Hayes, John R., Sandoghchi, Seyed Reza, Jasion, Gregory, Wooler, John, Gray, David, Petrovich, Marco N. and Poletti, Francesco (2014) Recent advances in hollow-core photonic bandgap fibres In Specialty Optical Fibers 2014. Optical Society of America.. (doi:10.1364/SOF.2014.SoM4B.1).

Richardson, David, Chen, Yong, Wheeler, Natalie, Hayes, John, Bradley, Thomas, Sandoghchi, Seyed Reza, Jasion, Gregory, Numkam Fokoua, Eric, Liu, Zhixin, Slavík, Radan, Petrovich, Marco and Poletti, Francesco (2016) Hollow core fibres for data transmission At OptoElectronics and Communications Conference (OECC 2016), Niigata, Japan. 03 - 07 Jul 2016.

Petrovich, Marco, Chen, Yong, Bradley, Thomas, Sandoghchi, Seyed Reza, Wheeler, Natalie, Hayes, John, Jasion, Gregory, Numkam Fokoua, Eric, Poletti, Francesco, Liu, Zhixin, Slavík, Radan and Richardson, David (2015) Demonstration of long lengths of longitudinally uniform hollow core Photonic Bandgap fibre and their demonstration for low latency data transmission At 17th International Conference on Transparent Optical Networks (ICTON '15), Hungary. 05 - 09 Jul 2015.

Chen, Yong, Numkam Fokoua, Eric, Bradley, Thomas, Hayes, John, Sandoghchi, Seyed Reza, Wheeler, Natalie, Jasion, Gregory, Poletti, Francesco, Petrovich, Marco and Richardson, David (2017) Demonstration of a wide bandwidth, low loss hollow core photonic bandgap fiber in the 1.55 μm wavelength region At 5th Workshop on Specialty Optical Fiber and Their Applications, Limassol, Cyprus. 11 - 13 Oct 2017.

Nawazuddin, M.B.S., Wheeler, N.V., Hayes, J.R., Bradley, T., Sandoghchi, S.R., Gouveia, M.A., Jasion, G.T., Richardson, D.J. and Poletti, F. (2017) Lotus shaped negative curvature hollow core fibre with 10.5 dB/km at 1550 nm wavelength At 43rd European Conference on Optical Communications, Gothenburg, Sweden. 17 - 21 Sep 2017. 3 pp.

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