The effect of modulator bias point on harmonic suppression of MWP based RF channel

Yongchuan Xiao; Hao Zhang; Chao Wang; Pengfei Qu; Lijun Sun

doi:10.1117/12.2524602

10 May 2019 The effect of modulator bias point on harmonic suppression of MWP based RF channel

Yongchuan Xiao, Hao Zhang, Chao Wang, Pengfei Qu, Lijun Sun

Proceedings Volume 11068, Second Symposium on Novel Technology of X-Ray Imaging; 110681R (2019) https://doi.org/10.1117/12.2524602
Event: Second Symposium on Novel Technology of X-Ray Imaging, 2018, Hefei, China

Abstract

Microwave photonic (MWP) based radio frequency (RF) channel is usually composed of three parts: microwave pre-processing part, electro-optical interconversion part and microwave post-processing part. The nonlinearity of active components causes serious harmonics at the output of MWP based RF channels. This paper mainly analyzes the harmonic distortions produced in the external-modulated optical transmission link and studies the variation of output harmonic power in the RF channel by changing the modulator bias point. According to the experiment, it is verified that the second harmonic can be effectively suppressed when the modulator is biased at high power point.

Citation Download Citation

Yongchuan Xiao, Hao Zhang, Chao Wang, Pengfei Qu, and Lijun Sun "The effect of modulator bias point on harmonic suppression of MWP based RF channel", Proc. SPIE 11068, Second Symposium on Novel Technology of X-Ray Imaging, 110681R (10 May 2019); https://doi.org/10.1117/12.2524602

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