Dr. Henry Zmuda Profile

Dr. Henry Zmuda

at Univ of Florida

SPIE Involvement:

Author

Publications (23)

Proceedings Article | 25 February 2012 Paper

FPGA implementation of robust Capon beamformer

Xin Guan, Henry Zmuda, Jian Li, Lin Du, Mark Sheplak

Proceedings Volume 8320, 83200G (2012) https://doi.org/10.1117/12.911110

KEYWORDS: Phased arrays, Field programmable gate arrays, Telecommunications, Antennas, Signal processing, Medical imaging, Digital signal processing, Spatial filters, Radar, Wireless communications

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Proceedings Article | 16 April 2010 Paper

MIMO based optical phased array technology with electronic beam steering for laser radar applications

Neha Sharma, Henry Zmuda

Proceedings Volume 7700, 77000E (2010) https://doi.org/10.1117/12.852602

KEYWORDS: LIDAR, Signal detection, Phased array optics, Phased arrays, Laser systems engineering, Receivers, Radar, Beam steering, Transmitters, Signal attenuation

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Proceedings Article | 29 April 2009 Paper

A MIMO-inspired rapidly switchable photonic interconnect architecture

Henry Zmuda, Joseph Osman, Michael Fanto, Thomas McEwen

Proceedings Volume 7339, 73390K (2009) https://doi.org/10.1117/12.822116

KEYWORDS: Phased array optics, Phase modulation, Wavelength division multiplexing, Phased arrays, Signal detection, Modulation, Receivers, Fiber lasers, Signal processing, Antennas

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It is well-known that interconnect issues pose a significant bottleneck with regard to improving the performance of high-speed integrated systems such as a cluster of computer processing units. Power, speed (bandwidth), and size all affect the computational performance and capabilities of future systems. High-speed optical processing has been looked to as a means for eliminating this interconnect bottleneck. Presented here are the results of a study for a novel optical (integrated photonic) processor which would allow for a high-speed, secure means for arbitrarily addressing a multiprocessor system. This paper will present analysis, simulation, and optimization results for the architecture as well as considerations for a proof-of-concept level system design. The architecture takes advantage of spatial and wavelength diversity and in this regard may be regarded as a Multiple Input Multiple Output (MIMO) architecture. A given node to be addressed, rather than having a wired metal contact as an output, has as a radiating laser source that has been modulated with the data to be conveyed to another point in the system. Each processor node radiates a different optical wavelength. Each individual wavelength is chosen, for example, to correspond to the wavelengths associated with a WDM ITU grid. All wavelengths are incident on a coherent fiber bundle which acts as an array receiver. Unlike conventional phased arrays, the receive elements are spaced many wavelengths apart giving rise to a large number of grating lobes. It will be shown that by using appropriate photonic/optical signal processing methods any node of the processor cluster can be randomly and rapidly addressed using high-speed phase shifters (electrooptic or others) as control elements. The diversity techniques employed achieve high gain and a narrow beamwidth in the direction of the desired node and high attenuation with regard to the signals from all other nodes. As is often the case of MIMO-bases systems, overall performance exceeds that of diffraction limited array processing. In addition to the interconnect application discussed, the methods described in this paper can also be applied to other applications where rapid electrical (non-mechanical) optical beamsteering is required such as raster scanned laser radar systems and tracking, guidance, and navigation systems.

Proceedings Article | 23 April 2008 Paper

Experimental results for a photonic time reversal processor for the adaptive control of an ultra wideband phased array antenna

Henry Zmuda, Michael Fanto, Thomas McEwen

Proceedings Volume 6975, 697504 (2008) https://doi.org/10.1117/12.783968

KEYWORDS: Antennas, Signal processing, Phased arrays, Atmospheric propagation, Optical components, Phased array optics, Modulation, Dispersion, Digital signal processing, Pulsed laser operation

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Proceedings Article | 23 April 2008 Paper

Characterization of an electroabsorption modulator design with high-dynamic range for broadband analog applications

Rebecca Bussjager, Reinhard Erdmann, Richard Michalak, Paul Cook, Brian McKeon, Henry Zmuda, Songsheng Tan, Nancy Stoffel, Charles Schick, Terrance McDonald, Paul Yu, Ivan Shubin, Xiaobo Xie

Proceedings Volume 6975, 69750N (2008) https://doi.org/10.1117/12.784225

KEYWORDS: Prototyping, Modulators, Waveguides, Analog electronics, Sensors, Analytical research, Intermodulation, Modulation, High dynamic range imaging, Distortion

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Proceedings Article | 24 March 2008 Paper

A photonic recirculating delay line for analog-to-digital conversion and other applications

Henry Zmuda, Michael Fanto, Thomas McEwen, Jared Pawloski, Kristina Norelli

Proceedings Volume 6975, 69750F (2008) https://doi.org/10.1117/12.783962

KEYWORDS: Signal to noise ratio, Fiber optics, Modulators, Analog electronics, Optical amplifiers, Interference (communication), Modulation, Sensors, Signal detection, Microwave radiation

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Proceedings Article | 7 May 2007 Paper

Time reversed photonic beamforming of arbitrary waveform ladar arrays

Joseph Cox, Henry Zmuda, Rebecca Bussjaeger, Reinhard Erdmann, Michael Fanto, Michael Hayduk, John Malowicki

Proceedings Volume 6572, 657209 (2007) https://doi.org/10.1117/12.723749

KEYWORDS: LIDAR, Sensors, Target detection, Signal processing, Modulation, Pulsed laser operation, Fiber Bragg gratings, Optical amplifiers, Coating, Atmospheric propagation

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Proceedings Article | 12 May 2006 Paper

Ultra wideband photonic control of an adaptive phased array antenna

Joseph Cox, Henry Zmuda, Jian Li, Pasquale Sforza

Proceedings Volume 6243, 62430V (2006) https://doi.org/10.1117/12.672882

KEYWORDS: Antennas, Phased array optics, Signal processing, Phased arrays, Atmospheric propagation, Modulation, Dispersion, Optical components, Digital signal processing, Pulsed laser operation

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Proceedings Article | 24 May 2005 Paper

Optically assisted high-speed, high resolution analog-to-digital conversion

Henry Zmuda, Shane Hanna, R. Bussjager, M. Fanto, M. Hayduk, S. Johns, J. Malowicki, P. Repak

Proceedings Volume 5814, (2005) https://doi.org/10.1117/12.609863

KEYWORDS: Signal to noise ratio, Fiber optics, Signal detection, Modulators, Polarization, Interference (communication), Sensors, Analog electronics, Modulation, Digital signal processing

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Proceedings Article | 3 August 2004 Paper

High-speed high-resolution optically assisted analog-to-digital conversion

Henry Zmuda, Shane Hanna

Proceedings Volume 5435, (2004) https://doi.org/10.1117/12.547840

KEYWORDS: Signal to noise ratio, Fiber optics, Modulators, Analog electronics, Interference (communication), Sensors, Modulation, Signal detection, Digital signal processing, Microwave radiation

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Proceedings Article | 14 July 2003 Paper

Optically assisted high-speed analog-to-digital conversion using a recirculating delay loop

Henry Zmuda, Shane Hanna

Proceedings Volume 5104, (2003) https://doi.org/10.1117/12.511759

KEYWORDS: Signal to noise ratio, Fiber optics, Modulators, Analog electronics, Sensors, Interference (communication), Modulation, Signal detection, Microwave radiation, Digital signal processing

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Proceedings Article | 28 January 2002 Paper

Wavelength-based analog-to-digital conversion

Henry Zmuda, Michael Hayduk, Rebecca Bussjager, Edward Toughlian

Proceedings Volume 4547, (2002) https://doi.org/10.1117/12.454385

KEYWORDS: Optical filters, Tunable lasers, Signal processing, Refractive index, Photodetectors, Radiation effects, Modulators, Fabry–Perot interferometers, Photonics systems, Semiconductor lasers

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Proceedings Article | 27 December 2001 Paper

Analog-to-digital conversion using high-speed photonic processing

Henry Zmuda

Proceedings Volume 4490, (2001) https://doi.org/10.1117/12.455412

KEYWORDS: Tunable lasers, Signal processing, Optical filters, Refractive index, Fabry–Perot interferometers, High speed photonics, Binary data, Electro optics, Modulators, Data modeling

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Proceedings Article | 26 July 2001 Paper

High-speed photonic analog-to-digital converter

Henry Zmuda, Edward Toughlian

Proceedings Volume 4386, (2001) https://doi.org/10.1117/12.434223

KEYWORDS: Fabry–Perot interferometers, Optical filters, Modulators, Electro optics, Tunable filters, Tunable lasers, Signal processing, Fiber Bragg gratings, Waveguides, Binary data

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Proceedings Article | 18 July 2000 Paper

Fiber-optic-based null steering for conformal array antennas

Henry Zmuda, Edward Toughlian, Paul Payson, Mark Jones

Proceedings Volume 4042, (2000) https://doi.org/10.1117/12.391901

KEYWORDS: Antennas, Phased arrays, Tunable lasers, Dispersion, Signal processing, Digital filtering, Signal attenuation, Fiber optics, Phased array optics, Global Positioning System

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Proceedings Article | 26 July 1999 Paper

Photonically controlled phased-array null steering using wavelets

Brian Taylor, Henry Zmuda

Proceedings Volume 3714, (1999) https://doi.org/10.1117/12.354673

KEYWORDS: Wavelets, Signal processing, Filtering (signal processing), Antennas, Tunable lasers, Phase shifts, Phased arrays, Electronic filtering, Digital signal processing, Optical filters

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Proceedings Article | 3 November 1998 Paper

Dynamic null steering for broadband phased-array antennas via photonic processing

Henry Zmuda, Edward Toughlian, Paul Payson, Herbert Klumpe, Mark Jones

Proceedings Volume 3463, (1998) https://doi.org/10.1117/12.330376

KEYWORDS: Antennas, Phased arrays, Phased array optics, Tunable lasers, Chemical elements, Signal attenuation, Microwave radiation, Dispersion, Signal processing, Phase shifts

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Proceedings Article | 31 July 1998 Paper

Dynamic null steering for broadband phased array antennas via photonic processing

Henry Zmuda, Edward Toughlian, Paul Payson, Herbert Klumpe, Mark Jones

Proceedings Volume 3384, (1998) https://doi.org/10.1117/12.317668

KEYWORDS: Antennas, Phased arrays, Phased array optics, Tunable lasers, Chemical elements, Signal attenuation, Microwave radiation, Dispersion, Signal processing, Phase shifts

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Proceedings Article | 1 July 1997 Paper

Photonic crossbar switch architecture for phased array beam-forming applications

Henry Zmuda, Richard Soref, Edward Toughlian, Paul Payson, Steven Johns

Proceedings Volume 3075, (1997) https://doi.org/10.1117/12.277623

KEYWORDS: Phased arrays, Microwave radiation, Phased array optics, Antennas, Tunable lasers, Modulation, Optical components, Optical fibers, Fiber lasers, Signal processing

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Proceedings Article | 1 October 1995 Paper

True-time-delay photonic beamformer for an L-band phased array radar

Henry Zmuda, Edward Toughlian, Paul Payson, John Malowicki

Proceedings Volume 2560, (1995) https://doi.org/10.1117/12.218521

KEYWORDS: Phased array optics, Phased arrays, Antennas, Phase shifts, Digital micromirror devices, Heterodyning, Microwave radiation, Integrated optics, Acousto-optics, L band

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The problem of obtaining a true-time-delay photonic beamformer has recently been a topic of great interest. Many interesting and novel approaches to this problem have been studied. This paper examines the design, construction, and testing of a dynamic optical processor for the control of a 20-element phased array antenna operating at L-band (1.2-1.4 GHz). The approach taken here has several distinct advantages. The actual optical control is accomplished with a class of spatial light modulator known as a segmented mirror device (SMD). This allows for the possibility of controlling an extremely large number (tens of thousands) of antenna elements using integrated circuit technology. The SMD technology is driven by the HDTV and laser printer markets so ultimate cost reduction as well as technological improvements are expected. Optical splitting is efficiently accomplished using a diffractive optical element. This again has the potential for use in antenna array systems with a large number of radiating elements. The actual time delay is achieved using a single acousto-optic device for all the array elements. Acousto-optic device technologies offer sufficient delay as needed for a time steered array. The topological configuration is an optical heterodyne system, hence high, potentially millimeter wave center frequencies are possible by mixing two lasers of slightly differing frequencies. Finally, the entire system is spatially integrated into a 3D glass substrate. The integrated system provides the ruggedness needed in most applications and essentially eliminates the drift problems associated with free space optical systems. Though the system is presently being configured as a beamformer, it has the ability to operate as a general photonic signal processing element in an adaptive (reconfigurable) transversal frequency filter configuration. Such systems are widely applicable in jammer/noise canceling systems, broadband ISDN, and for spread spectrum secure communications. This paper also serves as an update of work-in-progress at the Rome Laboratory Photonics Center Optical Beamforming Lab. The multi-faceted aspects of the design and construction of this state-of-the-art beamforming project will be discussed. Experimental results which demonstrate the performance of the system to-date with regard to both maximum delay and resolution over a broad bandwidth are presented.

Proceedings Article | 3 June 1994 Paper

Broadband reconfigurable optical beam-forming systems

Edward Toughlian, Henry Zmuda, Charity Carter

Proceedings Volume 2216, (1994) https://doi.org/10.1117/12.177335

KEYWORDS: Phased array optics, Antennas, Mirrors, Digital micromirror devices, Phased arrays, Digital filtering, Phase shifts, Photonics, Acousto-optics, Telecommunications

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SPIE Journal Paper | 1 March 1993

Variable time-delay system for broadband phased array and other transversal filtering applications

Edward Toughlian, Henry Zmuda

OE, Vol. 32, Issue 03, (March 1993) https://doi.org/10.1117/12.10.1117/12.61059

KEYWORDS: Phased arrays, Digital filtering, Mirrors, Antennas, Filtering (signal processing), Signal processing, Phased array optics, Modulation, Optical filters, Adaptive optics

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Proceedings Article | 1 August 1991 Paper

Variable time delay for RF/microwave signal processing

Edward Toughlian, Henry Zmuda

Proceedings Volume 1476, (1991) https://doi.org/10.1117/12.45566

KEYWORDS: Phased array optics, Phase shifts, Microwave radiation, Antennas, Mirrors, Adaptive optics, Digital filtering, Photonics, Digital micromirror devices, Heterodyning

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Showing 5 of 23 publications

Proceedings Volume Editor (2)

SPIE Conference Volume | 7 May 2012

Sensors and Systems for Space Applications V

SPIE Conference Volume | 10 May 2011

Sensors and Systems for Space Applications IV

Conference Committee Involvement (18)

Sensors and Systems for Space Applications XI

16 April 2018 | Orlando, FL, United States

Sensors and Systems for Space Applications X

10 April 2017 | Anaheim, CA, United States

Sensors and Systems for Space Applications IX

18 April 2016 | Baltimore, MD, United States

Sensors and Systems for Space Applications VIII

20 April 2015 | Baltimore, MD, United States

Sensors and Systems for Space Applications VII

5 May 2014 | Baltimore, MD, United States

Sensors and Systems for Space Applications VI

29 April 2013 | Baltimore, Maryland, United States

Sensors and Systems for Space Applications V

23 April 2012 | Baltimore, Maryland, United States

Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VIII

23 April 2012 | Baltimore, Maryland, United States

Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VII

25 April 2011 | Orlando, Florida, United States

Sensors and Systems for Space Applications IV

25 April 2011 | Orlando, Florida, United States

Enabling Photonics Technologies for Defense, Security, and Aerospace Applications VI

5 April 2010 | Orlando, Florida, United States

Enabling Photonics Technologies for Defense, Security, and Aerospace Applications V

13 April 2009 | Orlando, Florida, United States

Enabling Photonic Technologies for Defense, Security, and Aerospace Applications IV

17 March 2008 | Orlando, Florida, United States

Enabling Photonic Technologies for Defense, Security, and Aerospace Applications III

9 April 2007 | Orlando, Florida, United States

Enabling Photonics Technologies for Defense, Security, and Aerospace Applications II

20 April 2006 | Orlando (Kissimmee), Florida, United States

Enabling Photonics Technologies for Defense, Security, and Aerospace Applications

31 March 2005 | Orlando, Florida, United States

Enabling Photonic Technologies for Aerospace Applications VI

14 April 2004 | Orlando, Florida, United States

Enabling Photonic Technologies for Aerospace Applications V

23 April 2003 | Orlando, Florida, United States

Showing 5 of 18 Conference Committees

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