Techniques for optical generation of microwave signals have recently received much attention [1]. The generation of narrowband microwave signals from the mixing of two optical sources has been demonstrated using fast photodetectors [2]. This paper describes the first generation of a tuneable, CW, narrowband microwave radiation by mixing two optical sources in a GaAs/AlxGa1-xAs waveguide, utilizing the inherent non-linear properties of the material.

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Conference Proceedings of the IEEE MTT-S International Microwave Symposium
Citation
Frlan, E., Janz, S., Chatenoud, F., Normandin, R., Stubbs, M.G., & Wight, J. S. (1994). CW microwave generation by optical downconversion in a nonlinear AlxGa1-xAs waveguide. Presented at the Proceedings of the IEEE MTT-S International Microwave Symposium.