High crosstalk InP digital optical switch for microwave applications

M. Zegaoui; J. Harari; D. Lauvernier; D. Decoster; J. Chazelas

doi:10.1117/12.689823

3 October 2006 High crosstalk InP digital optical switch for microwave applications

M. Zegaoui, J. Harari, D. Lauvernier, D. Decoster, J. Chazelas

Proceedings Volume 6399, Advanced Free-Space Optical Communication Techniques/Applications II and Photonic Components/Architectures for Microwave Systems and Displays; 63990M (2006) https://doi.org/10.1117/12.689823
Event: Optics/Photonics in Security and Defence, 2006, Stockholm, Sweden

Abstract

Because electro-optic switches are key elements for the synthesis of large bandwidth, high dynamic, true time delay optically controlled microwave antennas, we designed, fabricated and characterized a new digital optical switch grown on InP substrate, and based on carrier-induced effects. The switching time is short (3ns) and there is no added noise on the optical signal. By introducing this switch in a microwave optical link at 1GHz frequency, we demonstrate that a 72dB microwave crosstalk (more than 36dB on the optical signal) can be achieved. The low current consumption of 60mA makes our device suitable for the optical control of microwave antennas.

Citation Download Citation

M. Zegaoui, J. Harari, D. Lauvernier, D. Decoster, and J. Chazelas "High crosstalk InP digital optical switch for microwave applications", Proc. SPIE 6399, Advanced Free-Space Optical Communication Techniques/Applications II and Photonic Components/Architectures for Microwave Systems and Displays, 63990M (3 October 2006); https://doi.org/10.1117/12.689823

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