Liu Wenkai, Liu Chengyuan, Dong Xiaowei. Ultrashort Optical Pulse Shaping Based on Integral Characteristics of Phase-Shifted Fiber Grating[J]. Chinese Journal of Lasers, 2018, 45(3): 306005
- Chinese Journal of Lasers
- Vol. 45, Issue 3, 306005 (2018)
Fig. 1. Structure of phase-shifted fiber gratings
Fig. 2. Amplitude-frequency response and phase-frequency response of phase-shifted fiber grating. (a) Amplitude-frequency and (b) phase-frequency responses of first-order phase-shifted fiber grating; (c) amplitude-frequency and (d) phase-frequency responses of second-order phase-shifted fiber grating
Fig. 3. Integral test of phase-shifted fiber gratings. (a) First-order phase-shifted fiber grating; (b) second-order phase-shifted fiber grating
Fig. 4. Structure of the pulse shaper
Fig. 5. First-order integral of Gaussian pulses
Fig. 6. Flat-topped pulse after shaping. (a) Time domain; (b) frequency domain
Fig. 7. (a) Input Gaussian pulse; (b) triangular pulse after shaping
Fig. 8. Asymmetric triangular pulse. (a) k1=1, k2=-2; (b) k1=2, k2=-1
Fig. 9. Effect of the input signal fluctuation on the output pulse. (a) Flat-topped pulse; (b) triangular pulse
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