Larc instrument incubator project update
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LaRC Instrument Incubator Project Update. by M. J. Kavaya, G. J. Koch, J. Yu, U. N. Singh, B. Trieu, F. Amzajerdian NASA Langley Research Center M. Petros Science and Technology Corp. to Working Group on Space-Based Lidar Winds Jan. 17-20, 2006 Key West, Florida. Project Approach.

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LaRC Instrument Incubator Project Update

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Larc instrument incubator project update

LaRC Instrument Incubator Project Update

by

M. J. Kavaya, G. J. Koch, J. Yu, U. N. Singh, B. Trieu, F. Amzajerdian

NASA Langley Research Center

M. Petros

Science and Technology Corp.

to

Working Group on Space-Based Lidar Winds

Jan. 17-20, 2006

Key West, Florida


Project approach

Project Approach

  • Proposed as partnership between LaRC and Raytheon Space and Aircraft Systems

  • Cancellation by NASA Exploration of “Laser/Lidar Technologies for Exploration” Project in FY06 and beyond produced immediate threat to LaRC lidar group

  • Examined possibility of in-house execution of project and converted to that approach during December 2005

  • We greatly appreciate Raytheon’s interest and contributions and look forward to joint efforts in future

  • Official start date is 12/20/05; 3 years duration

  • Will use LaRC’s unique Ho:Tm:LuLF solid-state 2-micron laser technology

  • Will begin with partially conductively cooled (PCC) laser design (LDAs are conductively cooled and the laser rod is liquid cooled). The packaged lidar may be upgraded to fully conductively cooled (FCC) in the future.

  • Will package with eye on aircraft operation and space qualification needs

  • Beyond IIP, will require telescope, scanner, and software for aircraft operation


Larc instrument incubator project update

Global Tropospheric Wind Profiles: Example Roadmap

2-Micron Coherent Doppler Lidar

High Energy Technology 1997

2 micron laser 1988

Diode Pump Technology 1993

Inj. Seeding Technology 1996

Conductive Cooling Techn. 1999

Compact Packaging

Packaged Lidar Ground Demo.

Autonomous Oper. Technol.

Pre-Launch Validation

Lifetime Validation

3-Yr. Lifetime Validation

Space Qualif.

Aircraft Operation

Threshold,

400 km

Demo, NPOESS

UAV Operation

Autonomous Oper. Technol.

3-Yr. Lifetime Validation

Space Qualif.

Pre-Launch Validation

Lifetime Validation

1 micron laser

Diode Pump Technology

Inj. Seeding Technology

Conductive Cooling Techn.

Compact Packaging

High Energy Technology

Packaged Lidar Ground Demo.

0.355-Micron Direct Doppler Lidar

Lidar Perf.

Simulations

OSSE’s

Past Funding

Laser Risk Reduction Program

Ground-Based Risk Reduction (IPO)

2 micron Doppler wind aircraft flights

1 micron altimetry space missions

Pump Laser Diode Advancement

Dual Wavelength Telescope & Scanner

IIP-2004 Projects

Optional


Larc development of pulsed 2 micron laser technology for space

LaRC Development of Pulsed, 2-Micron Laser Technology For Space


Larc development of pulsed 2 micron laser technology for space1

LaRC Development of Pulsed, 2-Micron Laser Technology For Space


Pulsed laser efficiency

Pulsed Laser Efficiency

WPE = Wall Plug Efficiency


Conclusions

Conclusions

  • We are pleased that NASA has selected several wind related IIP proposals

  • We are grateful for the previous NASA and IPO/NPOESS funding that has brought us to this point

  • We regret that NASA funding issues will not let us partner with Raytheon for this project

  • The combination of past progress, the LaRC and GSFC IIP’s, the dual Doppler lidar approach, and aircraft validation flights should enable a space demonstration mission in a few years


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