Engineering topics
Publications and source records attributed to Hemmati, H..
This paper discusses the process being used and the results of the selection and qualification of a low cost prepackaged diode laser with a custom packaged microchip laser crystal.
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Describes the LAMP instrument and its performance obtained in field-testing.
A flight qualified laser radar called LAMP (LAser MaPper) is under development at JPL. LAMP is a guidance and control sensor that can form 3 dimensional images of its field of regard. This paper describes the detailed design of the LAMP sensor.
Optical communication technologies are being developed to support multi-gigabit/sec links that encompass the LEO-to-GEO and GEO-to-GROUND communication system.
Communication links with multi-gga-bits per sec (Gbps) data-rates depicting both LEO-GEO and GEO-to-Ground optical communications were characterized in the laboratory.
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The goal is to develop key components for a technology that will enable optical communications to meet the data delivery requirements of the EOS (Earth Observing Spacecraft) community.
Future NASA and commercial space missions will require communications terminals to provide higher data rate with lower mass and power. Optical communications is a rapidly developing technology in response to this demand.
We discuss the programs currently under development in regards to laser communications research at NASA/JPL.
We discuss the telescope and its new programs currently under development.
The Jet Propulsion Laboratory (JPL) has recently established an accelerated development initiative to enable high-resolution active optical ranging and terrain mapping capabilities for a series of upcoming Solar System exploration missions.
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The coming decade of Mars exploration will involve a diverse set of robotic science missions, including in situ and sample return investigations, and ultimately moving towards sustained robotic presence on the Martian surface. In supporting this mission set, NASA must establish a robust telecommunications architecture that meets the specific science needs of near-term missions while enabling new methods of future exploration. This paper will assess the anticipated telecommunications needs of future Mars exploration, examine specific options for deploying capabilities, and quantify the performance of these options in terms of key figures of merit.
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Optical communications is a rapidly developing technology applicable to future NASA and commercial space missions that desire a communications terminal that provides a higher data rate with lower mass and power.
Highly efficient laser sources are required for deep space optical telecommunication. This paper investigates the efficiency components for pulsed diode pumped solid state laser transmittersand determines the overall wall-plug efficiency applicable to a spaceborne system.