Biao Zhao, Pengfei Du, Jianghai Wo, Wenshan Cong, Junkai Zhang, Lan Yu. Tunable Dual-Bandpass Microwave Photonic Filter Based on Chirped Fiber Bragg Grating[J]. Laser & Optoelectronics Progress, 2019, 56(3): 030605
- Laser & Optoelectronics Progress
- Vol. 56, Issue 3, 030605 (2019)
Fig. 1. Structure of tunable dual-bandpass MPF based on CFBG
Fig. 2. Output optical spectrum of MZI (Inset: detailed drawing of amplified interference spectrum)
Fig. 3. Optical spectrum after reflection by cascaded CFBG
Fig. 4. Frequency response of MPF
Fig. 5. Frequency response curves of MPF with different length differences of MZI arm
Fig. 6. Relationship curves between central frequency of dual-bandpass and length difference of MZI arms. (a) First passband; (b) second passband
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