Conference Presentations

2014

  • M. A. Vorontsov, T. Weyrauch, and D. Bricker, “Deep turbulence and speckle effects in coherently combined fiber-array systems: Analysis and experimental demonstration,” presented at the Ninth Beam Control Conference, part of the Ninth Directed Energy Systems Symposium, Monterey, CA, USA, 25–28 August 2014.  Oral.
  • T. Weyrauch, M. Vorontsov, V. Ovchinnikov, E. Polnau, G. Wu, T. Ryan, and M. Maynard, “Atmospheric turbulence compensation and coherent beam combining over a 7 km propagation path using a fiber-array system with 21 sub-apertures,” presented at the Conference on Propagation through and Characterization of Distributed Volume Turbulence (pcDVT), part of the Imaging and Applied Optics Congress, Seattle, Washington, USA, 13–17 July 2014.  Presentation code: PW2E.3 (oral).
  • M. A. Vorontsov and S. L. Lachinova, “Target-in-the-loop atmospheric turbulence characterization based on remote sensing invariants,” presented at the Conference on Propagation through and Characterization of Distributed Volume Turbulence (pcDVT), part of the Imaging and Applied Optics Congress, Seattle, Washington, USA, 13–17 July 2014.  Presentation code: PW2E.1 (invited).
  • T. Weyrauch, M. A. Vorontsov, V. M. Ovchninnikov, and G. Wu, “Experimental demonstration of phase locking of a 21-subaperture fiber-collimator array over a 7-km atmospheric propagation path,” presented at the SPIE Defense, Security, and Sensing Conference, Baltimore, Maryland, USA, 5–9 May 2014.  Presentation code: 9081-26 (oral).
  • J. R. Kraczek, M. Aubailly, S. L. Lachinova, and M. A. Vorontsov, “Scintillation resistant multi-aperture phase-contrast wavefront sensor,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2014), part of the SPIE Photonics West Conference, San Francisco, California, USA, 1–6 February 2014.  Presentation code: 8971-9 (oral).
  • G. A. Filimonov, M. A. Vorontsov, and S. L. Lachinova, “Performance analysis of coherent tiled fiber-array beam director with near-field phase-locking and programmable control of tip/tilt and piston phases,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2014), part of the SPIE Photonics West Conference, San Francisco, California, USA, 1–6 February 2014.  Presentation code: 8971-8 (oral).

2013

  • M. A. Vorontsov, T. Weyrauch, S. L. Lachinova, V. Ovchinnikov, G. Wu, J. Raker, M. Maynard, and G. A. Filimonov, “Adaptive fiber-array systems for coherent beam combining and atmospheric compensation,” presented at the Eighth Beam Control Conference, part of the Eighth Directed Energy Systems Symposium, Monterey, California, USA, 26–29 August 2013.  Oral.
  • M. A. Vorontsov and J. Minet, “Turbulence enhanced cooperative optical communications (TECOCOM) concept and analysis,” presented at the Eighth Beam Control Conference, part of the Eighth Directed Energy Systems Symposium, Monterey, California, USA, 26–29 August 2013.  Oral.
  • J. Minet, C. Nunalee, M. A. Vorontsov, and S. Basu, “Optical wave propagation through von Karman vortex streets,” presented at the 2013 Imaging and Applied Optics Congress, Arlington, Virginia, USA, 23–27 June 2013.  Presentation code: PW3F.3 (oral).
  • C. Nunalee, J. Minet, S. Basu, and M. A. Vorontsov, “Atmospheric refractivity anomalies induced by mesoscale von Karman vortex streets,” presented at the 2013 Imaging and Applied Optics Congress, Arlington, Virginia, USA, 23–27 June 2013.  Presentation code: PW3F.2 (oral).
  • M. A. Vorontsov, “Conservation laws for counter-propagating optical waves in atmospheric turbulence with application to directed energy and laser communications,” presented at the 2013 Imaging and Applied Optics Congress, Arlington, Virginia, USA, 23–27 June 2013.  Presentation code: PW3F.1 (invited).
  • M. Aubailly and M. A. Vorontsov, “Digital adaptive optics and imaging through deep turbulence,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2013), part of the SPIE Photonics West Conference, San Francisco, California, USA, 2–7 February 2013.  Presentation code: 8610-36 (oral).
  • J. Minet, M. A. Vorontsov, and D. Dolfi, “Efficiency comparison of spatial and spectral diversity techniques for fading mitigation in free-space optical communications over tactical-range distances,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2013), part of the SPIE Photonics West Conference, San Francisco, California, USA, 2–7 February 2013.  Presentation code: 8610-35 (oral).
  • S. L. Lachinova and M. A. Vorontsov, “Generation of exotic laser beams with fiber-array systems for active imaging and wavefront sensing applications,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2013), part of the SPIE Photonics West Conference, San Francisco, California, USA, 2–7 February 2013.  Presentation code: 8610-18 (oral).
  • T. Weyrauch, M. D. Gatz, M. A. Vorontsov, G. W. Carhart, A. C. Deck, A. P. Rostov, “Experimental demonstration of coherent beam combining with an array of 21 adaptive fiber collimators,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2013), part of the SPIE Photonics West Conference, San Francisco, California, USA, 2–7 February 2013.  Presentation code: 8601-41 (oral).

2012

  • L. R. Burchett, S. T. Fiorino, J. E. McCrae, M. A. Vorontsov, and T. Weyrauch, “Comparison of Cn2 profiles from weather radar data to Coherent Multi-Beam Atmospheric Transceiver (COMBAT) experiments,” presented at the Fifteenth Annual Directed Energy Symposium, Albuquerque, New Mexico, USA, 26–30 November 2012.  Oral.
  • M. A. Vorontsov, “Wave optics of deep atmospheric turbulence (AFOSR MURI overview),” presented at the Fifteenth Annual Directed Energy Symposium, Albuquerque, New Mexico, USA, 26–30 November 2012.  Oral.
  • M. A. Vorontsov, V. S. Rao Gudimetla, A. M. Vorontsov, and P. Paramonov, “Numerical techniques for 3D-turbulence effects analysis and piston phase retrieval,” presented at the Advanced Maui Optical and Space Surveillance Technologies Conference (AMOS-2012), Wailea, Maui, Hawaii, USA, 11–14 September 2012.  Oral.
  • M. A. Vorontsov, V. V. Dudorov, M. O. Zyryanova, V. V. Kolosov, and G. A. Filimonov, “Receiver aperture averaging effect for free-space optical communications systems,” presented at the XVIII International Symposium “Atmospheric and Ocean Optics. Atmospheric Physics,” Irkutsk, Russia, 2–6 July 2012.  Poster.
  • M. A. Vorontsov, V. V. Dudorov, V. V. Kolosov, and G. A. Filimonov, “Generation of optical beams with controllable coherence degree based on fiber-array,” presented at the XVIII International Symposium “Atmospheric and Ocean Optics. Atmospheric Physics,” Irkutsk, Russia, 2–6 July 2012.  Poster.
  • M. A. Vorontsov, V. V. Dudorov, V. V. Kolosov, and G. A. Filimonov, “Bit error rate value for free-space optical communications systems with partially coherent beams,” presented at the XVIII International Symposium “Atmospheric and Ocean Optics. Atmospheric Physics,” Irkutsk, Russia, 2–6 July 2012.  Oral.
  • M. A. Vorontsov, V. V. Dudorov, G. A. Filimonov, and V. V. Kolosov, “Transmitter beam coherence degree influence on bit-error threshold for free-space optical communications through turbulent atmosphere,” presented at the XVIII International Symposium “Atmospheric and Ocean Optics. Atmospheric Physics,” Irkutsk, Russia, 2–6 July 2012.  Oral.
  • M. A. Vorontsov, T. Weyrauch, S. L. Lachinova, and M. Gatz, “Speckle-metric-optimization-based adaptive optics for laser beam projection and coherent beam combining on extended target with randomly rough surface,” presented at the XVIII International Symposium “Atmospheric and Ocean Optics. Atmospheric Physics,” Irkutsk, Russia, 2–6 July 2012.  Invited.
  • M. A. Vorontsov, T. Weyrauch, S. L. Lachinova, M. Gatz, and E. E. Polnau, “Coherent beam combining on an extended target with randomly rough surface: approach and experimental demonstration,” presented at the Seventh Directed Energy Beam Control Conference, Broomfield, Colorado, USA, 11–14 June 2012.  Oral.
  • M. Aubailly, M. A. Vorontsov, and G. W. Carhart, “On-the-fly turbulence effect mitigation in long-range surveillance applications based on lucky region fusion,” presented at the SIAM Conference on Imaging Science, Philadelphia, Pennsylvania, USA, 20–22 May 2012.  Oral.
  • M. A. Vorontsov, V. V. Kolosov, V. V. Dudorov, S. L. Lachinova, and V. P. Paramonov, “Generation of laser beams with controllable space-varying coherence with fiber-array systems,” presented at the SPIE Defense, Security, and Sensing Conference, Baltimore, Maryland, USA, 23–27 April 2012.  Presentation code: 8395-02 (invited).
  • M.-T. Velluet, M. A. Vorontsov, R. L. Espinola, G. Marchi, S. Nicolas, J. Riker, and P. B. W. Schwering, “Turbulence characterization and image processing data sets from a NATO RTO SET 165 trial in Dayton, OH, USA,” presented at the SPIE Defense, Security, and Sensing Conference, Baltimore, Maryland, USA, 23–27 April 2012.  Presentation code: 8380-18 (oral).
  • M. A. Vorontsov, G. W. Carhart, V. S. R. Gudimetla, S. L. Lachinova, T. Weyrauch, E. E. Polnau, and J. J. Liu, “Atmospheric characterization with multiwavelength laser beams over tactical and long-range propagation paths,” presented at the SPIE Defense, Security, and Sensing Conference, Baltimore, Maryland, USA, 23–27 April 2012.  Presentation code: 8380-16 (oral).
  • M. Aubailly, M. A. Vorontsov, G. W. Carhart, J. J. Liu, and R. L. Espinola, “Content-dependent, on-the-fly visual information fusion for battlefield scenarios,” presented at the SPIE Defense, Security, and Sensing Conference, Baltimore, Maryland, USA, 23–27 April 2012.  Presentation code: 8368-17 (oral).
  • M. Aubailly, M. A. Vorontsov, J. Liu, “Scintillation-resistant wavefront sensing based on a multi-aperture phase reconstruction (MAPR) technique,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2012), part of the SPIE Photonics West Conference, San Francisco, California, USA, 21–26 January 2012.  Presentation code: 8238B-26 (oral).
  • T. Weyrauch, M. A. Vorontsov, G. W. Carhart, L. A. Beresnev, A. P. Rostov, and J. J. Liu, “Experimental demonstration of target-in-the-loop coherent beam combining over a 7-km atmospheric propagation path,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2012), part of the SPIE Photonics West Conference, San Francisco, California, USA, 21–26 January 2012.  Presentation code: 8238B-22 (oral).
  • M. A. Vorontsov, E. E. Polnau, M. D. Gatz, T. Weyrauch, S. L. Lachinova, and D. Marker, “Target-in-the-loop adaptive laser beam projection on an extended target: turbulence speckle effects mitigation,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2012), part of the SPIE Photonics West Conference, San Francisco, California, USA, 21–26 January 2012.  Presentation code: 8238B-21 (oral).

2011

  • M. A. Vorontsov, V. S. Rao Gudimetla, G. W. Carhart, T. Weyrauch, S. L. Lachinova, E. Polnau, J. Reierson, L. A. Beresnev, J. Liu, E. Stevenson, and J. F. Riker, “Comparison of turbulence-induced scintillations for multi-wavelength laser beacons over tactical (7 km) and long (149 km) atmospheric propagation paths,” presented at the Advanced Maui Optical and Space Surveillance Technologies Conference (AMOS-2011), Wailea, Maui, Hawaii, USA, 13–16 September, 2011.  Oral.
  • M. A. Vorontsov, “Characteristics of atmosphere over 149 km propagation path: experimental results and analysis,” presented at the XVII International Symposium “Atmospheric and Ocean Optics. Atmospheric Physics,” Tomsk, Russia, 28 June – 1 July 2011.  Invited.
  • M. A. Vorontsov, T. Weyrauch, E. Polnau, L. A. Beresnev, G. Carhart, L. Liu, A. P. Rostov, and J. Liu, “Coherent beam combining over 7 km atmospheric propagation path: experimental results and path forward,” presented at the Sixth Beam Control Conference, Orlando, Florida, USA, 23–26 May 2011.  Oral.
  • M. A. Vorontsov, E. Polnau, G. Carhart, D. Marker, and J. Liu, “Speckle metrics based beam control in tiled fiber-array systems for HEL operation with extended (speckle) targets,” presented at the Sixth Beam Control Conference, Orlando, Florida, USA, 23–26 May 2011.  Oral.
  • S. L. Lachinova and M. A. Vorontsov, “Wavefront sensing and adaptive control in phased array of fiber collimators,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2011), part of the SPIE Photonics West Conference, San Francisco, California, USA, 22–27 January 2011.  Presentation code: 7924-14 (oral).
  • A. Vorontsov, G. W. Carhart, V. S. Rao Gudimetla, T. Weyrauch, E. Stevenson, S. L. Lachinova, L. A. Beresnev, J. Liu, and J. F. Riker, “Long-range (149km) atmospheric propagation experiments with multi-wavelength laser beacons,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2011), part of the SPIE Photonics West Conference, San Francisco, California, USA, 22–27 January 2011. Presentation code: 7924-07 (invited).
  • A. Beresnev, M. A. Vorontsov, T. Weyrauch, G. W. Carhart, and J. Liu, “Experimental study of phase locking of fiber collimators using internal beam-tail interference,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2011), part of the SPIE Photonics West Conference, San Francisco, California, USA, 22–27 January 2011. Presentation code: 7914-108 (poster).
  • A. Vorontsov, T. Weyrauch, L. A. Beresnev, G. W. Carhart, S. L. Lachinova, L. Liu, J. Liu, “Laser beam projection with adaptive fiber array systems,” presented at the International Symposium on Lasers and Applications in Science and Engineering (LASE 2011), part of the SPIE Photonics West Conference, San Francisco, California, USA, 22–27 January 2011. Presentation code: 7914-47 (invited).

2010

  • A. Vorontsov, J. J. Liu, L. A. Beresnev, G. Carhart, T. Weyrauch, and S. L. Lachinova, “Obscuration-free near-field phase locking of a coherent fiber-array laser transmitter system,” presented at the 27th Army Science Conference (27th ASC), Orlando, Florida, USA, 29 November – 2 December 2010. Presentation code: NO-03 (oral).
  • A. Vorontsov, G. W. Carhart, V. S. Rao Gudimetla, T. Weyrauch, E. Stevenson, K. Rehder, J. Liu, L. A. Beresnev, S. L. Lachinova, I. Kemp, and J. F. Riker, “Characterization of deep turbulence over 149 km propagation path using multi-wavelength laser beacons,” presented at the Advanced Maui Optical and Space Surveillance Technologies Conference (AMOS-2010), Wailea, Maui, Hawaii, USA, 14–17 September 2010. Invited.
  • A. Vorontsov, T. Weyrauch, G. W. Carhart, L. A. Beresnev, S. L. Lachinova, and J. Liu, “Adaptive phase-locked fiber-collimator array: Analysis and experimental demonstration,” presented at the 14th International Conference on Laser Optics (LO ‘2010), St. Petersburg, Russia, 28 June – 2 July 2010. Presentation code: WeR4-16 (invited).
  • M. Chi, G. Carhart, M. A. Vorontsov, and G. Cauwenberghs, “Intensity histogram CMOS image sensor for adaptive optics,” presented at the 2010 IEEE International Symposium on Circuits and Systems (ISCAS 2010), Paris, France, 30 May – 2 June 2010. Oral.
  • A. Vorontsov and S. L. Lachinova, “Wavefront control concept for adaptive phase-locked fiber-collimator array: Wavefront sensing and control system integration,” presented at the Fifth Directed Energy Systems Symposium, Monterey, California, USA, 12–16 April 2010. Oral.
  • A. Vorontsov, G. W. Carhart, V. S. Rao Gudimetla, T. Weyrauch, E. Stevenson, K. Rehder, J. Liu, L. A. Beresnev, S. L. Lachinova, I. Kemp, and J. F. Riker, “Deep turbulence characterization over 149 km propagation path with Coherent Multi-Beam Atmospheric Transceiver (COMBAT) system,” presented at the Fifth Directed Energy Systems Symposium, Monterey, California, USA, 12–16 April 2010. Invited.
  • A. Vorontsov, T. Weyrauch, G. W. Carhart, L. A. Beresnev, S. L. Lachinova, and J. Liu, “Target-in-the-loop beam projection with adaptive phase-locked fiber-collimator array: Analysis and experimental demonstration,” presented at the Fifth Directed Energy Systems Symposium, Monterey, California, USA, 12–16 April 2010. Oral.
  • A. Vorontsov, T. Weyrauch, L. A. Beresnev, G. W. Carhart, E. Polnau, S. L. Lachinova, and J. Liu, “Adaptive optics for free space laser communications,” presented at the OSA Topical Meeting on Applications of Lasers for Sensing and Free Space Communications, San Diego, California, USA, 31 January –3 February 2010. Presentation code: LSMA1 (invited).

2009

  • A. Vorontsov, T. Weyrauch, L. A. Beresnev, G. W. Carhart, L. Liu, and S. L. Lachinova, “Adaptive complex field control with an array of phase-locked fiber collimators,” presented at the Frontiers in Optics 2009/Laser Science XXV (FiO 2009/LS XXV), San Jose, California, USA, 11–15 October 2009. Presentation code: JWA4 (invited).
  • Aubailly, M. A. Vorontsov, G. W. Carhart, and M. T. Valley, “Image fusion from a stream of atmospherically distorted short-exposure images with automatic parameterization,” presented at the SPIE Conference on Optics and Photonics, San Diego, California, USA, 2–6 August 2009. Presentation code: 7463-11 (oral).
  • A. Vorontsov, J. F. Riker, V. S. Rao Gudimetla, G. W. Carhart, T. Weyrauch, L. A. Beresnev, K. Aschenbach, and S. L. Lachinova, “Design of a Coherent Optical Multi-Beam Atmospheric Testbed (COMBAT) for deep turbulence effects characterization and mitigation over 149 km propagation path,” presented at the Fourth Directed Energy Systems Symposium, Monterey, California, USA, 6–10 April 2009. Invited.
  • A. Vorontsov, T. Weyrauch, L. A. Beresnev, G. W. Carhart, L. Liu, and K. Aschenbach, “Adaptive array of phase-locked fiber collimators: Analysis and first experimental demonstration of dynamic phase distortion compensation,” presented at the Fourth Directed Energy Systems Symposium, Monterey, California, USA, 6–10 April 2009. Invited.

2008

  • A. Vorontsov and E. Polnau, “Target-in-the-loop wavefront sensing and control,” presented at the Advanced Maui Optical and Space Surveillance Technologies Conference (AMOS-208), Wailea, Maui, Hawaii, USA, 16–19 September 2008. Oral.
  • A. Vorontsov, E. E. Polnau, and V. V. Kolosov, “Wavefront phase originated of an extended light source: definition, analysis and adaptive optics applications,” presented at the SPIE Conference on Optics and Photonics, San Diego, California, USA, 10–14 August 2008. Presentation code: 7090-08 (oral).
  • A. Beresnev, T. Weyrauch, M. A. Vorontsov, L. Liu, and G. W. Carhart, “Development of adaptive fiber collimators for conformal fiber-based beam projection systems,” presented at the SPIE Conference on Optics and Photonics, San Diego, California, USA, 10–14 August 2008. Presentation code: 7090-07 (oral).
  • L. Lachinova and M. A. Vorontsov, “Adaptive control of conformal laser beams in deep atmospheric turbulence,” presented at the SPIE Conference on Optics and Photonics, San Diego, California, USA, 10–14 August 2008. Presentation code: 7090-06 (oral).
  • Aubailly, M. A. Vorontsov, G. W. Carhart, and M. T. Valley, “Synthetic imaging through atmospheric turbulence from short-exposure anisoplanatic images: mixed metric approach,” presented at the SPIE Conference on Optics and Photonics, San Diego, California, USA, 10–14 August 2008. Presentation code: 7090-05 (oral).
  • A. Vorontsov, V. V. Kolosov, and E. Polnau, Adaptive wavefront phase distortion compensation based on speckle-averaged phase conjugation,” presented at the XV International Symposium “Atmospheric and Ocean Optics. Atmospheric physics,” Krasnoyarsk, Russia, 22–29 June 2008. Invited.