1 March 1988 Determination Of A Variable-Spacing Array's Applicability As The NASA Advanced Communication Test Satellite Intersatellite Communication System Transmitter
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Abstract
Direct detection free-space optical communication using laser diode transmitters has been proposed for use on NASA's Advanced Communication Test Satellite (ACTS). The investigation reported here examines a prototype laser diode array for this purpose, having a variable spacing between the emitter stripes (VSA). The device was designed to output a moderately powerful beam into a narrower single-lobed radi-ation pattern than that of the (currently) more powerful regular-spacing phase-locked arrays (RSAs). Key parameters were measured to determine whether the VSA would be a good candidate for use in the ACTS system. Measurements showed a superior electrical frequency response, superior impulse response, and a slightly narrower far-field radiation pattern compared with the RSA. However, the limited output power of the VSA realistically precludes its use in a free-space optical communication system even when a polarization beam-combining system is used.
Peter L. Fuhr, Peter L. Fuhr, Frederic M. Davidson, Frederic M. Davidson, } "Determination Of A Variable-Spacing Array's Applicability As The NASA Advanced Communication Test Satellite Intersatellite Communication System Transmitter," Optical Engineering 27(3), 273238 (1 March 1988). https://doi.org/10.1117/12.7977920 . Submission:
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