Ku-Band (14Ghz) Fiber Optic Communication Links For Distributed Antennas In The Space Station
Abstract
Fiber optic networks are considered as a viable alternative to the conventional coaxial distribution systems for Space Station. The multiple access communication subsystem provides 450-750MHz data signal on offset quadrature phase shift keying (OQPSK) format to antenna mounted electronics. For coherent communication 100MHz frequency reference signal is transmitted to each module to phase lock a dielectric resonator oscillator at 14.15GHz. Experimental results of phase locked oscillator's spectral purity, synchronized via two commercial fiber-optic links at 1.3tim and 0.8gm, are reported. These two fiber-optic links were compared in terms of phase noise degradation. Furthermore, experimental results of fiber-optic link linearity, third order intermodulation distortion, dynamic range and effect of mixing between data and the frequency reference are reported.
- Publication:
-
Optical technologies for space communication systems
- Pub Date:
- June 1987
- DOI:
- 10.1117/12.940039
- Bibcode:
- 1987SPIE..756..173D
- Keywords:
-
- Antenna Arrays;
- Fiber Optics;
- Optical Communication;
- Space Stations;
- Spacecraft Antennas;
- Superhigh Frequencies;
- Cavity Resonators;
- Frequency Division Multiplexing;
- Multiple Access;
- Phase Shift Keying;
- Quadratures;
- Transmission Loss;
- Space Communications, Spacecraft Communications, Command and Tracking