Published/Posted: May 15, 2007

Authors: Haas, B. M.; Murphy, T. E.

DOI: 10.1109/LPT.2007.895887

Abstract: We describe and experimentally demonstrate a new technique to suppress third-order intermodulation distortion (IMD) in a coherent phase-modulated RF optical link. The anisotropic electrooptic coefficient of lithium niobate is exploited to simultaneously modulate orthogonally polarized fields. These fields are then combined to eliminate the third-order distortion. This technique uses a single phase modulator, requiring no external bias or control, for a highly linear photonic microwave relay. The resulting suboctave dynamic range is limited by fifth-order IMD instead of third-order IMD.

B. M. Haas and T. E. Murphy, "A Simple, Linearized, Phase-Modulated Analog Optical Transmission System", IEEE Photon. Technol. Lett. 19(10) 729-731 (2007)
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Manuscript: Haas_PTL_19_729_2007.pdf

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