Dr. Mulugeta Petros Profile

Dr. Mulugeta Petros

at NASA Langley Research Ctr

SPIE Involvement:

Author

Publications (43)

Proceedings Article | 12 July 2023 Open Access

Independent reliability assessment of the NASA GSFC laser transmitter for the LISA program

Upendra Singh, Neal Spellmeyer, Malcolm Wright, Erik Zucker, Kenji Numata, Stephen Horan, Charles Antill, Mulugeta Petros, Matthew Joplin, Anthony Yu

Proceedings Volume 12777, 1277739 (2023) https://doi.org/10.1117/12.2690346

KEYWORDS: Astronomical imaging, Transmitters, Reliability, Nanoimprint lithography

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Proceedings Article | 24 October 2018 Paper

Laser energy monitor for triple-pulse 2-um IPDA lidar application

Tamer Refaat, Mulugeta Petros, Jane Lee, Teh-Hwa Wong, Ruben Remus, Upendra Singh

Proceedings Volume 10779, 1077905 (2018) https://doi.org/10.1117/12.2324782

KEYWORDS: Laser energy, Calibration, Signal to noise ratio, LIDAR, Sensors, Analog electronics, Pulsed laser operation, Absorption, Carbon monoxide, Signal detection

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Proceedings Article | 24 October 2018 Paper

Airborne, direct-detection, 2-um triple-pulse IPDA lidar for simultaneous and independent atmospheric water vapor and carbon dioxide active remote sensing

Tamer Refaat, Mulugeta Petros, Upendra Singh, Charles Antill, Teh-Hwa Wong, Ruben Remus, Karl Reithmaier, Jane Lee, Stephen Bowen, Bryant Taylor, Angela Welters, Syed Ismail, Anna Noe

Proceedings Volume 10779, 1077902 (2018) https://doi.org/10.1117/12.2324785

KEYWORDS: LIDAR, Carbon monoxide, Transmitters, Pulsed laser operation, Atmospheric modeling, Data acquisition, Telescopes, Absorption, Sensors, Receivers

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Proceedings Article | 20 November 2017 Open Access

High energy 2-micron solid-state laser transmitter for NASA's airborne CO2 measurements

Jirong Yu, Mulugeta Petros, Upendra Singh, Yingxin Bai

Proceedings Volume 10564, 105642G (2017) https://doi.org/10.1117/12.2309054

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Proceedings Article | 17 November 2017 Open Access

Column Co2 measurement from an airborne solid state double-pulsed 2-micron integrated path differential absorption lidar

U. Singh, T. Refaat, K. Reithmaier, J. Yu, M. Petros, R. Remus, J. Fay

Proceedings Volume 10563, 105630C (2017) https://doi.org/10.1117/12.2304210

KEYWORDS: Carbon monoxide, LIDAR, Transmitters, Sensors, Absorption, Gas lasers, Pulsed laser operation, Atmospheric modeling, Telescopes, Global Positioning System

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Proceedings Article | 25 September 2017 Open Access

Column carbon dioxide and water vapor measurements by an airborne triple-pulse integrated path differential absorption lidar – novel lidar technologies and techniques with path to space

U. Singh, J. Yu, S. Ismail, M. Petros, T. Refaat

Proceedings Volume 10562, 105621R (2017) https://doi.org/10.1117/12.2296219

KEYWORDS: LIDAR, Transmitters, Carbon monoxide, Sensors, Absorption, Pulsed laser operation, Astronomical imaging, Active remote sensing, Aerospace engineering, Space telescopes

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Proceedings Article | 7 September 2017 Paper

Progress on development of an airborne two-micron IPDA lidar for water vapor and carbon dioxide column measurements

Upendra Singh, Tamer Refaat, Mulugeta Petros, Jirong Yu, Charles Antill, Bryant Taylor, Ruben Remus, Teh-Hwa Wong, Karl Reithmaier, Jane Lee, Syed Ismail, Stephen Bowen, Angela Welters

Proceedings Volume 10406, 1040603 (2017) https://doi.org/10.1117/12.2276206

KEYWORDS: LIDAR, System integration, Active remote sensing, Absorption, Atmospheric laser remote sensing, Carbon dioxide, Transmitters, Packaging, Receivers, Mercury cadmium telluride

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Proceedings Article | 7 December 2016 Presentation

Airborne 2-micron IPDA Lidar for atmospheric CO2 measurement (Conference Presentation)

Jirong Yu, Mulugeta Petros, Tamer Refaat, Upendra Singh

Proceedings Volume 9977, 997704 (2016) https://doi.org/10.1117/12.2236705

KEYWORDS: LIDAR, Carbon dioxide, Absorption, Clouds, Remote sensing, Systems engineering, Current controlled current source

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Proceedings Article | 24 October 2016 Paper

Airborne lidar for simultaneous measurement of column CO2 and water vapor in the atmosphere

Mulugeta Petros, Jirong Yu, Upendra Singh, Tamer Refaat, Charles Antill, Ruben Remus

Proceedings Volume 10006, 1000602 (2016) https://doi.org/10.1117/12.2245509

KEYWORDS: LIDAR, Absorption, Pulsed laser operation, Carbon monoxide, Sensors, Telescopes, Space telescopes, Transmitters, Data acquisition, Receivers

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Proceedings Article | 5 May 2016 Paper

Wavelength locking to CO2 absorption line-center for 2-um pulsed IPDA lidar application

Tamer Refaat, Mulugeta Petros, Charles Antill, Upendra Singh, Jirong Yu

Proceedings Volume 9879, 987904 (2016) https://doi.org/10.1117/12.2224950

KEYWORDS: Carbon dioxide, LIDAR, Carbon dioxide lasers, Absorption, Semiconductor lasers, Signal detection, Sensors, Modulation, Transmitters, Laser sources

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Proceedings Article | 5 May 2016 Paper

2-micron triple-pulse integrated path differential absorption lidar development for simultaneous airborne column measurements of carbon dioxide and water vapor in the atmosphere

Upendra Singh, Mulugeta Petros, Tamer Refaat, Jirong Yu

Proceedings Volume 9879, 987902 (2016) https://doi.org/10.1117/12.2223681

KEYWORDS: LIDAR, Absorption, Carbon dioxide lasers, Carbon dioxide, Sensors, Transmitters, Data acquisition, Receivers, Telescopes, Pulsed laser operation

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Proceedings Article | 20 October 2015 Paper

Double-pulsed 2-micron lidar validation for atmospheric CO2 measurements

Upendra Singh, Tamer Refaat, Jirong Yu, Mulugeta Petros, Ruben Remus

Proceedings Volume 9645, 964502 (2015) https://doi.org/10.1117/12.2196489

KEYWORDS: Carbon dioxide, LIDAR, Sensors, Transmitters, Clouds, Carbon dioxide lasers, Data modeling, Ocean optics, Absorption, Laser energy

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Proceedings Article | 1 September 2015 Paper

Development of double- and tripled-pulsed 2-micron IPDA Lidars for column CO2 measurement

Upendra Singh, Jirong Yu, Mulugeta Petros, Tamer Refaat, Ruben Remus, Karl Reithmaier

Proceedings Volume 9612, 961204 (2015) https://doi.org/10.1117/12.2191023

KEYWORDS: Carbon dioxide, LIDAR, Carbon dioxide lasers, Absorption, Atmospheric monitoring, Active remote sensing, Sensors, Remote sensing, Transmitters, Carbon monoxide

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Proceedings Article | 23 October 2014 Paper

Airborne 2-micron double-pulsed integrated path differential absorption lidar for column CO2 measurement

Ruben Remus, James Fay, Upendra Singh, Jirong Yu, Mulugeta Petros, Tamer Refaat, Karl Reithmaier

Proceedings Volume 9246, 924602 (2014) https://doi.org/10.1117/12.2069670

KEYWORDS: Carbon dioxide, LIDAR, Transmitters, Carbon dioxide lasers, Sensors, Absorption, Pulsed laser operation, Telescopes, Global Positioning System, Earth's atmosphere

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Proceedings Article | 20 October 2014 Paper

2-micron coherent Doppler lidar instrument advancements for tropospheric wind measurement

U. Singh, J. Yu, M. Kavaya, G. Koch, Mulugeta Petros

Proceedings Volume 9246, 92460A (2014) https://doi.org/10.1117/12.2067676

KEYWORDS: LIDAR, Transmitters, Wind energy, Doppler effect, Semiconductor lasers, Crystals, Sensors, Wind measurement, Laser systems engineering, Laser crystals

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Proceedings Article | 20 October 2014 Paper

Laser energy monitor for double-pulsed 2-um IPDA lidar application

Tamer Refaat, Mulugeta Petros, Ruben Remus, Jirong Yu, Upendra Singh

Proceedings Volume 9246, 924606 (2014) https://doi.org/10.1117/12.2070998

KEYWORDS: Sensors, Laser energy, Pulsed laser operation, LIDAR, Calibration, Signal to noise ratio, Atmospheric laser remote sensing, Signal detection, Carbon dioxide, Absorption

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SPIE Journal Paper | 6 October 2014 Open Access

Sensitive infrared signal detection by upconversion technique

Teh-Hwa Wong, Jirong Yu, Yingxin Bai, William Johnson, Songsheng Chen, Mulugeta Petros, Upendra Singh

OE, Vol. 53, Issue 10, 107102, (October 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.10.107102

KEYWORDS: Upconversion, Signal detection, Sensors, Infrared radiation, Mirrors, Infrared detectors, Silicon, Crystals, LIDAR, Photonic crystals

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Proceedings Article | 17 September 2013 Paper

Development of a TRL-5 conductively-cooled 2-micron laser transmitter for coherent doppler wind lidar system

Michael Kavaya, Timothy Shuman, Floyd Hovis, Upendra Singh, Mulugeta Petros, Jirong Yu

Proceedings Volume 8872, 887205 (2013) https://doi.org/10.1117/12.2024358

KEYWORDS: Laser applications, LIDAR, Laser development, Diodes, Transmitters, Laser resonators, Doppler effect, Solid state lasers, Resonators, Solid state electronics

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Proceedings Article | 17 September 2013 Paper

Development of a pulsed 2-micron integrated path differential absorption lidar for CO2 measurement

Tamer Refaat, Upendra Singh, Jirong Yu, Mulugeta Petros, Karl Reithmaier

Proceedings Volume 8872, 887209 (2013) https://doi.org/10.1117/12.2028245

KEYWORDS: Carbon dioxide, LIDAR, Carbon dioxide lasers, Sensors, Transmitters, Absorption, Atmospheric sensing, Pulsed laser operation, Earth's atmosphere, Active remote sensing

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SPIE Journal Paper | 12 September 2012 Open Access

Side-scan Doppler lidar for offshore wind energy applications

Grady Koch, Jeffrey Beyon, Edward Modlin, Mulugeta Petros, Jirong Yu, Paul Petzar, Steven Woll, Michael Kavaya

JARS, Vol. 6, Issue 01, 063562, (September 2012) https://doi.org/10.1117/12.10.1117/1.JRS.6.063562

KEYWORDS: LIDAR, Wind measurement, Wind energy, Doppler effect, Aerosols, Backscatter, Scanners, Sensors, Calibration, Wind turbine technology

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Proceedings Article | 18 November 2010 Paper

Advances in high-energy solid-state 2-micron laser transmitter development for ground and airborne wind and CO2 measurements

Grady Koch, Jeffrey Beyon, Upendra Singh, Paul Petzar, Edward Modlin, Yingxin Bai, Songsheng Chen, Jirong Yu, Michael Kavaya, Bo Trieu, Mulugeta Petros

Proceedings Volume 7832, 783202 (2010) https://doi.org/10.1117/12.865853

KEYWORDS: LIDAR, Oscillators, Wind energy, Wind measurement, Optical amplifiers, Laser development, Pulsed laser operation, Carbon dioxide, Carbon dioxide lasers, Transmitters

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Proceedings Article | 11 November 2010 Paper

A two micron coherent differential absorption lidar development

Jeffrey Beyon, Songsheng Chen, Randal VanValkenburg, Upendra Singh, Yingxin Bai, Paul Petzar, Jirong Yu, Mulugeta Petros, Bo Trieu, Grady Koch, Michael Kavaya

Proceedings Volume 7860, 786006 (2010) https://doi.org/10.1117/12.873318

KEYWORDS: Carbon dioxide, Absorption, Pulsed laser operation, LIDAR, Continuous wave operation, Carbon dioxide lasers, Transceivers, Heterodyning, Transmitters, Holmium

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SPIE Journal Paper | 1 March 2010

Field testing of a high-energy 2-µm Doppler lidar

Grady Koch, Jeffrey Beyon, Paul Petzar, Mulugeta Petros, Jirong Yu, Bo Trieu, Michael Kavaya, Upendra Singh, Edward Modlin, Bruce Barnes, Belay Demoz

JARS, Vol. 4, Issue 01, 043512, (March 2010) https://doi.org/10.1117/12.10.1117/1.3368726

KEYWORDS: LIDAR, Wind measurement, Clouds, Backscatter, Wind energy, Troposphere, Doppler effect, Aerosols, Pulsed laser operation, Optical amplifiers

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Proceedings Article | 9 December 2008 Paper

The selection of Q-switch for a 350mJ air-borne 2μm wind lidar

Jirong Yu, Upendra Singh, Paul Petzar, Bo Trieu, Mulugeta Petros, Yingxin Bai

Proceedings Volume 7153, 715309 (2008) https://doi.org/10.1117/12.806499

KEYWORDS: Q switching, Oscillators, Resonators, Pulsed laser operation, Acoustics, Wind energy, Transducers, LIDAR, Diffraction, Q switched lasers

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SPIE Journal Paper | 1 November 2007

High-energy 2 μm Doppler lidar for wind measurements

Grady Koch, Jeffrey Beyon, Bruce Barnes, Mulugeta Petros, Jirong Yu, Farzin Amzajerdian, Michael Kavaya, Upendra Singh

OE, Vol. 46, Issue 11, 116201, (November 2007) https://doi.org/10.1117/12.10.1117/1.2802584

KEYWORDS: LIDAR, Wind measurement, Doppler effect, Backscatter, Pulsed laser operation, Wind energy, Oscillators, Clouds, Optical engineering, Heterodyning

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Proceedings Article | 12 December 2006 Paper

300mJ injection seeded compact 2 micron coherent lidar transmitter

Bo Trieu, Mulugeta Petros, Jirong Yu, Upendra Singh, Yingxin Bai, Paul Petzar

Proceedings Volume 6409, 64091A (2006) https://doi.org/10.1117/12.694172

KEYWORDS: Oscillators, LIDAR, Amplifiers, Resonators, Thulium, Mirrors, Transmitters, Laser crystals, Semiconductor lasers, Distortion

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Proceedings Article | 12 December 2006 Paper

Advanced 2-micron solid-state laser for wind and CO2 lidar applications

Yingxin Bai, Michael Kavaya, Bo Trieu, Grady Koch, Jirong Yu, Upendra Singh, Mulugeta Petros, Paul Petzar

Proceedings Volume 6409, 64091C (2006) https://doi.org/10.1117/12.696908

KEYWORDS: Optical amplifiers, LIDAR, Oscillators, Diodes, Laser development, Wind energy, Amplifiers, Semiconductor lasers, Solid state lasers, Transceivers

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Proceedings Article | 16 September 2005 Paper

Design of a totally conductively cooled diode-pumped 2µm-laser amplifier

Glenn Byron, Luis Ramos-Izquierdo, Upendra Singh, Bo Trieu, Mulugeta Petros, Peck Sohn, Michael Kavaya, Songsheng Chen, Jirong Yu, Yingxin Bai

Proceedings Volume 5887, 58870M (2005) https://doi.org/10.1117/12.620823

KEYWORDS: Optical amplifiers, Head, Laser crystals, Diodes, Oscillators, Crystals, Semiconductor lasers, Transmitters, Thermal effects, Waveguides

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