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

Autor:	U. Gliese, Colin Edge, MJ Michael Wale, Alwyn J. Seeds, L.N. Langley, M.D. Elkin, Xuan Huang
Rok vydání:	2002
Předmět:	Beamforming Engineering Phased-array optics Phased array business.industry Bandwidth (signal processing) Electrical engineering Physics::Optics Laser Semiconductor laser theory law.invention Phase-locked loop law Phase noise Electronic engineering business
Zdroj:	International Topical Meeting on Microwave Photonics. Technical Digest (including High Speed Photonics Components Workshop) (Cat. No.98EX181).
Popis:	Coherent optical beamforming is particularly advantageous in multi-beam mobile phased array communications. Systems of this type employ a pair of phase locked optical carriers with a difference frequency equal to the required microwave signal. In this work a packaged diode-laser optical phase locked loop (OPLL) sub-system has been constructed for evaluation in a proof-of-concept optical beamforming system. The loop has been implemented with laser diodes, micro-optics and wide bandwidth electronics to give optimum phase noise performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bc51b713e35055fb136a05ca28537979 https://doi.org/10.1109/mwp.1998.745647 Zobrazit plný text záznamu