Dr. Jirong Yu Profile

Dr. Jirong Yu

Electronic Engineer at NASA Langley Research Ctr

SPIE Involvement:

Author

Publications (50)

Proceedings Article | 21 December 2024 Paper

Differential absorption lidar for searching water sources on Mars

Zhaoyan Liu, Joel Campbell, Bing Lin, Jirong Yu, Jihong Geng

Proceedings Volume 13265, 132650D (2024) https://doi.org/10.1117/12.3045077

KEYWORDS: Mars, Absorption, Water, LIDAR, Spectroscopy, Spatial resolution, Mars Reconnaissance Orbiter, Liquids, Ions, Hydrogen

Read Abstract +

Proceedings Article | 21 November 2017 Open Access

High-energy, 2µm laser transmitter for coherent wind LIDAR

Upendra Singh, Jirong Yu, Michael Kavaya, Grady Koch

Proceedings Volume 10566, 105661N (2017) https://doi.org/10.1117/12.2308205

KEYWORDS: LIDAR, Transmitters, Ions, Oscillators, Wind energy, Thulium, Fiber amplifiers, Optical amplifiers, Doppler effect, Holmium

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 21 November 2017 Open Access

Development and evaluation of a high sensitivity dial system for profiling atmospheric CO2

S. Ismail, G. Koch, T. Refaat, M. N. Abedin, J. Yu, U. Singh

Proceedings Volume 10566, 105661I (2017) https://doi.org/10.1117/12.2308246

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 20 November 2017 Open Access

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

Upendra Singh, Jirong Yu, Mulugeta Petros, Yingxin Bai

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

Read Abstract +

DOWNLOAD PAPER

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

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

Read Abstract +

DOWNLOAD PAPER

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

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

Read Abstract +

DOWNLOAD PAPER

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

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 24 October 2016 Paper

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

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

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 23 October 2014 Paper

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

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 20 October 2014 Paper

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

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

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

Read Abstract +

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

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 17 September 2013 Paper

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

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

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

Read Abstract +

Proceedings Article | 17 September 2013 Paper

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

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

Read Abstract +

Proceedings Article | 15 October 2012 Paper

Single-frequency gain-switched Ho-doped fiber laser

Jihong Geng, Q. Wang, T. Luo, B. Case, S. Jiang, Farzin Amzajerdian, Jirong Yu

Proceedings Volume 8519, 85190N (2012) https://doi.org/10.1117/12.930970

KEYWORDS: Fiber lasers, Fiber amplifiers, Silicate glass, Pulsed laser operation, Laser scattering, Q switched lasers, Scattering, Modulation, Absorption, Doppler effect

Read Abstract +

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

Read Abstract +

DOWNLOAD PAPER

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

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

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

Read Abstract +

Proceedings Article | 11 November 2010 Paper

Design of control software for a high-speed coherent Doppler lidar system for CO2 measurement

Randal VanValkenburg, Jeffrey Beyon, Grady Koch, Jirong Yu, Upendra Singh, Michael Kavaya

Proceedings Volume 7860, 786008 (2010) https://doi.org/10.1117/12.871967

KEYWORDS: Data acquisition, LIDAR, Carbon dioxide, Doppler effect, Software development, Data storage, Absorption, Control systems, Human-machine interfaces, Picosecond phenomena

Read Abstract +

Proceedings Article | 11 November 2010 Paper

A two micron coherent differential absorption lidar development

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

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

Read Abstract +

Proceedings Article | 11 November 2010 Paper

Energy measurement studies for CO2 measurement with a coherent Doppler lidar system

Jeffrey Beyon, Grady Koch, Jirong Yu, Upendra Singh, Michael Kavaya, Randal VanValkenburg

Proceedings Volume 7860, 786007 (2010) https://doi.org/10.1117/12.871966

KEYWORDS: LIDAR, Carbon dioxide, Interference (communication), Doppler effect, Wind energy, Data acquisition, Profiling, Absorption, Statistical analysis, Carbon dioxide lasers

Read Abstract +

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

Read Abstract +

Proceedings Article | 19 February 2009 Paper

Single-frequency fiber laser at 2.05 um based on Ho-doped germanate glass fiber

Jianfeng Wu, Zhidong Yao, Jie Zong, Arturo Chavez-Pirson, Nasser Peyghambarian, Jirong Yu

Proceedings Volume 7195, 71951K (2009) https://doi.org/10.1117/12.809482

KEYWORDS: Fiber lasers, Glasses, Absorption, Semiconductor lasers, Ions, Fiber Bragg gratings, Luminescence, Holmium, Doping, Laser stabilization

Read Abstract +

Proceedings Article | 9 December 2008 Paper

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

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

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

Read Abstract +

Proceedings Article | 23 October 2008 Paper

Solid-state 2-micron laser transmitter advancement for wind and carbon dioxide measurements from ground, airborne, and space-based lidar systems

Upendra Singh, Michael Kavaya, Grady Koch, Jirong Yu, Syed Ismail

Proceedings Volume 7111, 711104 (2008) https://doi.org/10.1117/12.802740

KEYWORDS: LIDAR, Wind energy, Transceivers, Oscillators, Transmitters, Laser applications, Solid state lasers, Doppler effect, Carbon dioxide, Carbon dioxide lasers

Read Abstract +

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

Read Abstract +

Proceedings Article | 26 September 2007 Paper

Requirements and technology advances for global wind measurement with a coherent lidar: a shrinking gap

Michael Kavaya, Jirong Yu, Grady Koch, Farzin Amzajerdian, Upendra Singh, G. David Emmitt

Proceedings Volume 6681, 668106 (2007) https://doi.org/10.1117/12.737428

KEYWORDS: LIDAR, Wind measurement, Wind energy, Doppler effect, Pulsed laser operation, Space telescopes, Laser applications, Aerosols, Telescopes, Laser energy

Read Abstract +

Proceedings Article | 12 December 2006 Paper

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

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

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

Read Abstract +

Proceedings Article | 12 December 2006 Paper

300mJ injection seeded compact 2 micron coherent lidar transmitter

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

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

Read Abstract +

Proceedings Article | 16 September 2005 Paper

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

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

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

Read Abstract +