Laser ranging contributions to monitoring and interpreting Earth orientation changes
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laser packaging laser-welded fiber-pigtailed↗
Engineering topics
Asbury, C. G.
Publications and source records attributed to Asbury, C. G..
Optical metrology for Starlight Separated Spacecraft Stellar Interferometry Mission
We describe a high-precision inter-spacecraft metrology system designed for NASA 's StarLight mission, a space-based separated-spacecraft stellar interferometer. It consists of dual-target linear metrology, based on a heterodyne interferometer with carrier phase modulation, and angular metrology designed to sense the pointing of the laser beam and provides bearing information. The dual-target operation enables one metrology beam to sense displacement of two targets independently. We present the current design, breadboard implementation of the Metrology Subsystem in a stellar interferometer testbed and the present state of development of flight qualifiable subsystem components.
metrology stellar interferometry formation flying↗
Laser-welded packaging of a Nd:YAG laser for space applications
This paper describes the fabrication of a rugged, laser-welded package for a 200mW, monolithic diode-pumped solid state Nd:YAG laser operating at 1319nm.
laser↗
Rugged, laser-welded packaging of a fiber-pigtailed Nd:YAG laser
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laser packaging laser-welded fiber-pigtail↗
Reliable, laser-welded packaging of a Nd:YAG laser for space application
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laser laser-welded packaging space↗
The starlight metrology subsystem
Describes a metrology subsystem for NASA's Starlight mission, a space-based separated-spacecraft stellar interferometer.
metrology, stellar interferometry↗