Dr. Lawrence J. Lembo Profile

Dr. Lawrence J. Lembo

Member of Technical Staff at Northrop Grumman Space Technology

SPIE Involvement:

Author

Publications (17)

Proceedings Article | 23 April 2008 Paper

Paper

Photonically enabled RF spectrum analyzer demonstration

Elizabeth Kunkee, Ken Tsai, Andrew Smith, T. Jung, Larry Lembo, Richard Davis, W. Randall Babbitt, R. Krishna-Mohan, Zachary Cole, Kristian Merkel, Kelvin Wagner

Proceedings Volume 6975, 697506 (2008) https://doi.org/10.1117/12.777222

KEYWORDS: Spectrum analysis, Signal detection, Crystals, Signal processing, Modulation, Free space optics, Field programmable gate arrays, RF photonics, Telecommunications, Laser crystals

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Proceedings Article | 8 December 2003 Paper

Paper

Semiconductor electrorefractive modulators

Elizabeth Kunkee, QiSheng Chen, Steve Holm, James Ho, Chun-Ching Shih, Peter Livingston, Johanna Lacey Kraus, Larry Lembo

Proceedings Volume 5248, (2003) https://doi.org/10.1117/12.513107

KEYWORDS: Modulators, Quantum wells, Absorption, Semiconductors, Quantum dots, Doping, Modulation, Waveguides, Phased array optics, Signal detection

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Proceedings Article | 7 September 2000 Paper

Paper

Wideband signal processing applications for coherent optical channelizers

Richard Davis, Lawrence Lembo, Wenshen Wang, Robert Lodenkamper, Thomas Jung, John Brock, Ming Wu

Proceedings Volume 4112, (2000) https://doi.org/10.1117/12.399384

KEYWORDS: Channel projecting optics, Signal processing, Electronics, Receivers, Sensors, System integration, Modulators, Modulation, Heterodyning, Diffraction gratings

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Proceedings Article | 7 September 2000 Paper

Paper

Photonic correlation for wideband processing in MMW imaging systems

James Leight, Lawrence Lembo

Proceedings Volume 4112, (2000) https://doi.org/10.1117/12.399385

KEYWORDS: Signal processing, Imaging systems, Extremely high frequency, Modulators, Electronics, Sensors, Modulation, Millimeter wave imaging, Optical correlators, Integrated optics

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Proceedings Article | 7 September 2000 Paper

Paper

Broadband high-power photodetector arrays for photonically implemented phased-array antenna architectures

David Scott, Timothy Vang, James Leight, David Forbes, Karen Everett, Fernando Alvarez, Roosevelt Johnson, John Brock, Lawrence Lembo

Proceedings Volume 4112, (2000) https://doi.org/10.1117/12.399379

KEYWORDS: Picture Archiving and Communication System, Photodiodes, Photodetectors, Phased array optics, Microwave radiation, Phased arrays, Capacitance, Data modeling, Performance modeling, Circuit switching

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Proceedings Article | 19 April 2000 Paper

Paper

Semiconductor optical modulators for high-performance analog rf photonic links and signal processing

Timothy Vang, Elizabeth Twyford Kunkee, David Scott, David Forbes, Richard Davis, Jeff Elliott, John Brock, Lawrence Lembo

Proceedings Volume 3950, (2000) https://doi.org/10.1117/12.382167

KEYWORDS: Modulators, Quantum wells, Semiconductors, Optical modulators, Analog electronics, Optical semiconductors, Photodetectors, Electro optics, RF photonics, Signal processing

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Proceedings Article | 3 November 1998 Paper

Paper

RF performance of optical injection locking

Robert Lodenkamper, Thomas Jung, Richard Davis, Lawrence Lembo, Ming Wu, John Brock

Proceedings Volume 3463, (1998) https://doi.org/10.1117/12.330390

KEYWORDS: Semiconductor lasers, Heterodyning, Sensors, Signal processing, Phase measurement, Signal detection, Acoustics, Channel projecting optics, Polarization, Interference (communication)

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Proceedings Article | 3 November 1998 Paper

Paper

Evaluation of optical channelizers in terms of rf performance

Robert Lodenkamper, Richard Davis, Lawrence Lembo, Michael Wickham, John Brock

Proceedings Volume 3463, (1998) https://doi.org/10.1117/12.330387

KEYWORDS: Channel projecting optics, Sensors, Heterodyning, Detector arrays, Diffraction gratings, Signal detection, Optical filters, Fabry–Perot interferometers, Filtering (signal processing), Signal attenuation

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Proceedings Article | 13 October 1998 Paper

Paper

Radiation test results of polarization-maintaining fiber at 1.55 um over a wide temperature range

Xenophon Glavas, Lawrence Lembo, Warren Haraki, Shimen Claxton, Roger Greenwell, David Scott

Proceedings Volume 3440, (1998) https://doi.org/10.1117/12.326688

KEYWORDS: Phase modulation, Signal attenuation, Temperature metrology, Birefringence, Optical fibers, Information operations, Polarization maintaining fibers, Cladding, Silica, Ionizing radiation

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Proceedings Article | 23 October 1997 Paper

Paper

Simultaneous optical amplification and splitting for lower-noise and higher-gain microwave signal distribution

Elizabeth Twyford Kunkee, Charles Zmudzinski, Lawrence Lembo, Roosevelt Johnson, Fernando Alvarez, Doyle Nichols, John Brock

Proceedings Volume 3160, (1997) https://doi.org/10.1117/12.279459

KEYWORDS: Optical amplifiers, Phased array optics, Microwave radiation, Waveguides, Semiconductor optical amplifiers, Photodetectors, Interference (communication), Multimode interference devices, Antennas, Phased arrays

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Proceedings Article | 18 December 1996 Paper

Paper

Q-band monolithic rf optical photoreceiver using InP-based PIN-HEMT MBE selective epitaxy

Richard Lai, Lawrence Lembo, Dennis Lo, Dwight Streit, Rosie Dia, Po-Hsin Liu, Fernando Alvarez, John Brock

Proceedings Volume 2842, (1996) https://doi.org/10.1117/12.262762

KEYWORDS: Epitaxy, Wafer-level optics, Semiconducting wafers, Molecular beam epitaxy, Photodiodes, Optical amplifiers, Heterodyning, Modulation, Spectrum analysis

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Proceedings Article | 22 November 1996 Paper

Paper

Microwave optical splitter/amplifier integrated chip (MOSAIC) using semiconductor optical amplifiers

Charles Zmudzinski, E. Twyford, Lawrence Lembo, Roosevelt Johnson, Fernando Alvarez, Doyle Nichols, John Brock

Proceedings Volume 2844, (1996) https://doi.org/10.1117/12.259001

KEYWORDS: Optical amplifiers, Phased array optics, Signal to noise ratio, Interference (communication), Waveguides, Active optics, Near field optics, Integrated optics, Semiconductor optical amplifiers, Signal attenuation

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Proceedings Article | 22 November 1996 Paper

Paper

Fiber optic Bragg grating true-time-delay generator for broadband rf applications

Michael Wickham, Lawrence Lembo, Lawrence Dozal, John Brock

Proceedings Volume 2844, (1996) https://doi.org/10.1117/12.259002

KEYWORDS: Antennas, Phased array optics, Fiber optics, Fiber Bragg gratings, Phase shifts, Nulling interferometry, Phased arrays, Signal attenuation, Beam steering, Switching

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Proceedings Article | 1 October 1995 Paper

Paper

Fiber optic Bragg grating true-time-delay generator for broadband rf applications

Michael Wickham, Lawrence Dozal, Lawrence Lembo, John Brock

Proceedings Volume 2560, (1995) https://doi.org/10.1117/12.218519

KEYWORDS: Phased array optics, Antennas, Fiber Bragg gratings, Fiber optics, Modulation, Signal attenuation, Reflectivity, Prisms, Single mode fibers, Switching

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Proceedings Article | 30 June 1995 Paper

Paper

Optical electroabsorption modulators for wideband, linear, low-insertion-loss photonic links

Lawrence Lembo, Fernando Alvarez, Dennis Lo, Chan Tu, Philip Wisseman, Charles Zmudzinski, John Brock

Proceedings Volume 2481, (1995) https://doi.org/10.1117/12.212725

KEYWORDS: Modulators, Quantum wells, Distortion, Absorption, Semiconductors, Photodetectors, Switching, Analog electronics, Modulation, Waveguides

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Proceedings Article | 10 June 1994 Paper

Paper

Integrated optoelectronic interconnect for phased-array antenna applications

Lawrence Lembo, Moshe Sergant, Chan Tu, Philip Wisseman, Charles Zmudzinski, John Brock

Proceedings Volume 2155, (1994) https://doi.org/10.1117/12.177387

KEYWORDS: Antennas, Optoelectronics, Waveguides, Semiconductors, Microwave radiation, Phased arrays, Integrated optics, Optical amplifiers, Signal attenuation, RF photonics

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Proceedings Article | 10 June 1994 Paper

Paper

Low-loss fiber optic time-delay element for phased-array antennas

Lawrence Lembo, Terry Holcomb, Michael Wickham, Philip Wisseman, John Brock

Proceedings Volume 2155, (1994) https://doi.org/10.1117/12.177398

KEYWORDS: Fiber optics, Optical components, Fiber optic components, Antennas, Phased array optics, Fiber Bragg gratings, Optical networks, Phased arrays, Holography, Single mode fibers

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Showing 5 of 17 publications

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