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Optical phase locked loop (OPLL) module for use as a 9 GHz source in phased array communications antennas

Langley, LN; Elkin, MD; Edge, C; Wale, MJ; Gliese, U; Huang, X; Seeds, AJ; (1998) Optical phase locked loop (OPLL) module for use as a 9 GHz source in phased array communications antennas. Proceedings of the International Topical Meeting on Microwave Photonics, MWP, Technical Digest pp. 141-142.

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Abstract

A packaged diode-laser optical phase locked loop (OPLL) sub-system is constructed for evaluation in an proof-of-concept optical beamforming system. The loop is implemented with laser diodes, micro-optics and linewidth, wide bandwidth electronics to give optimum phase noise performance. The laser diodes are designed for narrow linewidth, wide bandwidth and high FM-efficiency, whilst the main challenge in the construction of the packaged OPLL is the realization of a high gain loop, with a small propagation delay.

Type: Article
Title: Optical phase locked loop (OPLL) module for use as a 9 GHz source in phased array communications antennas
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/1299509
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