Journal article
Optical Beamforming Networks Based on Broadband Optical Source and Chirped Fiber Grating
We propose a photonic beamforming network scheme based on a broadband optical source and chirped fiber grating. The principle and feasibility are proved by both theoretical analysis and experiments. In 1 to 18 GHz microwave band, experimental results show a good delay time consistency and the ratio of signal-to-noise met the practical application demands.
The time consistency errors are smaller than 1 ps in 9.25 to 10.25 GHz band. Especially, the effects of group delay ripple are effectively mitigated compared with the tunable laser source scheme, which agree well with the theoretical results.
Language: | English |
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Publisher: | IEEE |
Year: | 2008 |
Pages: | 733-735 |
ISSN: | 19410174 and 10411135 |
Types: | Journal article |
DOI: | 10.1109/LPT.2008.921086 |
Array signal processing Bragg gratings Broadband optical source (BS) Chirp Delay effects Fiber gratings Laser theory Masers Microwave bands Optical beams Optical fiber networks Tunable circuits and devices broadband optical source chirped fiber grating chirped fiber grating (CFG) delay time consistency frequency 1 GHz to 18 GHz group delay ripple microwave photonics optical beamforming networks optical beamforming networks (OBFNs) optical delay lines optical fibre networks photonic beamforming network scheme signal-to-noise ratio true-time delay (TTD)