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  • 2017 European Conference on Lasers and Electro-Optics and European Quantum Electronics Conference
  • (Optica Publishing Group, 2017),
  • paper ED_P_1

Phase noise reduction of an RF oscillator by photonic-based highly sensitive phase noise analyzer

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Abstract

Low phase noise micro - mm waves are critical building blocks for future wireless communications and radar. Micro – mm waves generated by optical frequency combs via optical frequency division can have extremely low phase noise [1], but producible RF carrier frequencies are essentially limited to harmonics of the comb repetition frequency. Actively suppressing phase noise of RF oscillators is a more universal way to generate low noise arbitrary RF carrier frequencies [2, 3]. For this, electro-optic comb (EO comb) based active phase noise suppression of RF oscillators is a powerful method, compatible with referencing to micro cavities [2] and optical frequency combs [3]. In this report, we propose and demonstrate an alternative approach for active phase noise suppression by referencing to a long fiber delay, based on highly sensitive phase noise measurements as enabled via a two wavelength, delayed self-heterodyne interferometer [4].

© 2017 IEEE

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