Non-reciprocal character in the microwave photonic sensing system utilized by the intensity optical modulator

Lin Gui; Yushuang Zhu; Yuxuan Zhu

doi:10.1117/12.2534024

17 May 2019 Non-reciprocal character in the microwave photonic sensing system utilized by the intensity optical modulator

Lin Gui, Yushuang Zhu, Yuxuan Zhu

Author Affiliations +

Proceedings Volume 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019); 111703Y (2019) https://doi.org/10.1117/12.2534024
Event: Fourteenth National Conference on Laser Technology and Optoelectronics, 2019, Shanghai, China

Abstract

The microwave photonic sensing system is widely investigated recently. The transmission character between two types of optical sensing schemes interrogated by microwave approach is investigated. The first case is that the incoherent light is modulated by the electro-optic modulator firstly and then filtered, and the second case is that the incoherent light is filtered firstly and then modulated. Experimental results show that the optical loss and microwave loss of the links between two cases are different. By utilizing a fiber with the length of 2km between and optical filter, the optical loss of the links in case I is 1.8dB lower than that in case II, and the microwave loss of the links in case I is 3.8dB lower than that in case II. To conclude, the non-reciprocal character appears in this incoherent microwave photonics links.

Citation Download Citation

Lin Gui, Yushuang Zhu, and Yuxuan Zhu "Non-reciprocal character in the microwave photonic sensing system utilized by the intensity optical modulator", Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111703Y (17 May 2019); https://doi.org/10.1117/12.2534024

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