11 January 2005 Adaptive high-Q bandpass photonic RF filter
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In this paper, a MicroPhotonic-based high-Q tunable RF filter architecture is proposed. The architecture uses a Vertical Cavity Surface Emitting Laser (VCSEL) array, a 2D ultra-wideband photo-receiver array and a multi-cavity optical substrate to generate a large number of optical true-time delays thus achieving arbitrary, high-resolution RF filter transfer characteristics. By tuning the responses of the different optical cavities, adaptive high-Q RF filter characteristics can be realized over a wide RF frequency range. Proof-of-concept experimental results demonstrate the adaptability of the MicroPhotonic-based RF filter.
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Rong Zheng, Rong Zheng, Kamal Alameh, Kamal Alameh, Zhenglin Wang, Zhenglin Wang, } "Adaptive high-Q bandpass photonic RF filter", Proc. SPIE 5642, Information Optics and Photonics Technology, (11 January 2005); doi: 10.1117/12.572599; https://doi.org/10.1117/12.572599

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