Asymmetric heterodyne downconversion for fading-free radio-over-fiber systems

Takahide Sakamoto; Tatsuki Ishijima; Syuhei Otsuka; Hideto Takayasu

doi:10.1117/12.2648866

15 March 2023 Asymmetric heterodyne downconversion for fading-free radio-over-fiber systems

Takahide Sakamoto, Tatsuki Ishijima, Syuhei Otsuka, Hideto Takayasu

Proceedings Volume 12429, Next-Generation Optical Communication: Components, Sub-Systems, and Systems XII; 1242912 (2023) https://doi.org/10.1117/12.2648866
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

In this paper, we investigate asymmetric heterodyne downconversion, where dual-sideband (DSB) RoF signals are downconverted without experiencing the dispersive fading effects, which allows us higher conversion efficiency (higher RF link gain) and high tolerance against fiber nonlinearity, as well. Two methods for the downconversion are investigated and compared with each other, where dual sidebands allocated on (1) one side, and (2) both sides against the optical carrier frequency are asymmetrically downconverted into the intermediate frequencies and transferred as RF signals.

Conference Presentation

Citation Download Citation

Takahide Sakamoto, Tatsuki Ishijima, Syuhei Otsuka, and Hideto Takayasu "Asymmetric heterodyne downconversion for fading-free radio-over-fiber systems", Proc. SPIE 12429, Next-Generation Optical Communication: Components, Sub-Systems, and Systems XII, 1242912 (15 March 2023); https://doi.org/10.1117/12.2648866

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