Photonic-delay homodyne technology for low-phase noise measurement |
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| Authors: | Jun Hong Lan Yin |
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| Institution: | 1. Department of Electrical and Information Engineering, Hunan Institute of Technology, Hengyang 421002, Hunan, China;2. School of Mathematics and Physics, University of South China, Hengyang 421001, Hunan, China |
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| Abstract: | The sensitivity of photonic-delay homodyne phase noise measurement system is improved by using high-linear photodetector and low-phase noise amplifier in this paper. The phase noise model for microwave link is proposed and the sensitivity of photonic-delay based measurement system is analyzed with this theory model. Results show that phase noise sensitivity in this measurement system is −130 dBc/Hz at 1 kHz and −145 dBc/Hz at 10 kHz, and in my knowledge it is the highest sensitivity for photonic-delay homodyne technology without cross correlation. |
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| Keywords: | Phase noise Photonic delay Cross correlation |
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