High-Speed Analog Fiber Optic Links For Satellite Communication

A. S. Daryoush; P. R. Herczfeld; R. R. Kunath

doi:10.1117/12.960172

28 November 1988 High-Speed Analog Fiber Optic Links For Satellite Communication

A. S. Daryoush, P. R. Herczfeld, R. R. Kunath

Proceedings Volume 0996, High Data Rate Atmospheric and Space Communications; (1988) https://doi.org/10.1117/12.960172
Event: O-E/Fiber LASE '88, 1988, Boston, MA, United States

Abstract

Large aperture phased array antennas operating at millimeter wave frequencies are designed for space-based communications and imaging. Array elements are comprised of active transmit/receive (T/R) modules which are linked to the central processing unit through a high-speed fiberoptic network. This paper demonstrates optical control of active modules for satellite communication at 24GHz. An approach called T/R level data mixing, which utilizes fiberoptic transmission of data signal to individual T/R modules to be upconverted by an optically synchronized local oscillator, is demonstrated at 24GHz. In this study free-running HEMT oscillator, used as local oscillator at 24GHz, is synchronized using indirect subharmonic optical injection locking over a locking range of 14MHz. Results of data link performance over 500-1000MHz is also reported in terms of gain-bandwidth, linearity and third order intercept, sensitivity, and dynamic range.

Citation Download Citation

A. S. Daryoush, P. R. Herczfeld, and R. R. Kunath "High-Speed Analog Fiber Optic Links For Satellite Communication", Proc. SPIE 0996, High Data Rate Atmospheric and Space Communications, (28 November 1988); https://doi.org/10.1117/12.960172

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