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Non-reciprocal character in the microwave photonic sensing system utilized by the intensity optical modulator
Author(s): Lin Gui; Yushuang Zhu; Yuxuan Zhu
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Paper 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.

Paper Details

Date Published: 17 May 2019
PDF: 4 pages
Proc. SPIE 11170, 14th National Conference on Laser Technology and Optoelectronics (LTO 2019), 111703Y (17 May 2019); doi: 10.1117/12.2534024
Show Author Affiliations
Lin Gui, Shanghai Second Polytechnic Univ. (China)
Yushuang Zhu, Shanghai Second Polytechnic Univ. (China)
Yuxuan Zhu, Shanghai Second Polytechnic Univ. (China)


Published in SPIE Proceedings Vol. 11170:
14th National Conference on Laser Technology and Optoelectronics (LTO 2019)
Jianqiang Zhu; Weibiao Chen; Zhenxi Zhang; Minlin Zhong; Pu Wang; Jianrong Qiu, Editor(s)

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