Qibin Cai, Jiahong Zhang, Zhengang Zhao. Measurement and Analysis of Instantaneous Microwave Frequency Based on Bisymmetric Stimulated Brillouin Scattering Effect[J]. Laser & Optoelectronics Progress, 2021, 58(9): 0906001
- Laser & Optoelectronics Progress
- Vol. 58, Issue 9, 0906001 (2021)
Fig. 1. Schematic diagram of microwave frequency measurement structure
Fig. 2. Frequency spectra of SBS effect. (a)(c) Phase modulation; (b)(d) spectra of SBS effect in HNLF1 and HNLF2
Fig. 3. ACF curve of system instantaneous frequency measurement
Fig. 4. ACF curves for different Brillouin frequency shift difference
Fig. 5. ACF curves under different line center gain coefficient difference
Fig. 6. Optimized ACF curves. （a） ACF curve at 0‒21 GHz; （b） ACF curve at 0‒18 GHz
Fig. 7. Variation of measurement error with frequency
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