Xuemeng Xu, Pengfei Zheng, Jing Li, Hong Hong, Huimin Yang, Ruohu Zhang, Binfeng Yun. Delay Test of Tunable Silicon Nitride Micro-Ring Based on Optical Vector-Network Analysis[J]. Acta Optica Sinica, 2019, 39(11): 1113001
- Acta Optica Sinica
- Vol. 39, Issue 11, 1113001 (2019)
Fig. 1. Schematic of OVNA measurement system based on optical single sideband modulation
Fig. 2. Schematic of tunable silicon nitride micro-ring
Fig. 3. Variation between measured delay and average delay of OVNA system
Fig. 4. Test of resonance peak deviation. (a) Micro-ring delay spectra of multiple measurements; (b) resonance frequency fluctuation of 20 measurements
Fig. 5. Comparison between delay spectrum of single measurement and average delay spectrum of 20 measurements
Fig. 6. Comparison of delay spectra after frequency-domain alignment. (a) Delay spectra of multiple measurements; (b) delay spectrum of single measurement, average delay spectrum of 20 measurements, and average delay spectrum of 20 measurements after frequency-domain alignment
Fig. 7. Measurement and fitting for micro-ring amplitude spectra. (a) Micro-ring amplitude spectra measured by LMS and OVNA; (b) fitting of micro-ring transmission spectrum
Fig. 8. Comparison of delay spectra obtained by OVNA measurement and theoretical fitting
Fig. 9. Transmission and delay spectra of micro-ring under different driving voltages. (a) Micro-ring transmission spectra measured by LMS; (b) theoretical fitting delay spectra corresponding to transmission spectra
Fig. 10. Extinction ratio and delay measurement under different driving voltages. (a) Extinction ratio measured by LMS and OVNA; (b) delay obtained by theoretical fitting and OVNA measurement
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