[1] [1] Pu H L, Lu H W. Design and experiment study of all-fiber MZI interleaver based on 8-shaped fiber ring resonator[J]. Journal of Optoelectronics·Laser, 2015, 26(2): 239–244.

[2] [2] Dong X W, Pei L,Xu O, et al. Study of interleaver based on ring resonator assisted Mach-Zehnder interferometer[J]. Acta Op-tica Sinica, 2008, 28(4): 638–642.

[3] [3] Zhou G, Zhao C L, Huang Y L, et al. Improvement of the capa-bility of nonsymmetrical Mach-Zehnder interferometric inter-leaver using fiber loop[J]. Acta Optica Sinica, 2002, 22(6): 702–705.

[4] [4] Dong X W, Liu M M, Liu W K. Optical pulse repetition rate multiplication and shaping using double-Mach-Zehnder-based ring resonator[J]. Optik, 2016, 127(4): 1720–1723.

[5] [5] Li W B, Sun J Q. Analysis of characteristics of the interleaver based on a double-coupler resonator[J]. Chinese Journal of Lasers, 2008, 35(8): 1191–1194.

[6] [6] Lu HW, Lu Y, Pu H L, et al. Improved designs of all-fiber 3×3 interleaver with flat-topped passband[J]. Acta Optica Sinica, 2015, 35(2): 0206003.

[7] [7] Lu HW,Wei Y, Yan K J, et al. Design of all-fiber asymmetric interleaver with 3x3 and 2x2 fiber couplers[J]. Acta Optica Si-nica, 2011, 31(11): 1106002.

[8] [8] Kang J, Li M C, Dong X Y, et al. Optimization of concatenated long-period fiber grating based M-Z filter[J]. Journal of Optoe-lectronics·Laser, 2011, 22(8): 1130–1133.

[9] [9] Zhang B G, Wu X C. Design analysis of flattop all-fiber asym-metric interleaver[J]. Optics Communications, 2015, 341: 194–198.

[10] [10] Li J, Tong Z R, Meng H Y, et al. Theoretical study on optical comb-filter of cascaded M-Z interferometer[J]. Acta Optica Si-nica, 2003, 23(1): 41–44.

[11] [11] Lu HW,Wu K J,Wei Y, et al. Study of all-fiber asymmetric interleaver based on two-stage cascaded Mach–Zehnder In-terferometer[J]. Optics Communications, 2012, 285(6): 1118–1122.

[12] [12] Meng Y C, Tan W H, Huang Z M. General solutions to direc-tional couplers with coupling between neighbored waveguides only[J]. Acta Optica Sinica, 2003, 23(8): 964–969.

[13] [13] Wang Q J, Zhang Y, Soh Y C. All-fiber 3×3 interleaver design with flat-top passband[J]. IEEE Photonics Technology Letters, 2004, 16(1): 168–170.

[14] [14] Kok S W, Zhang Y, Wen C Y, et al. Design of all-fiber optical interleavers with a given specification on passband ripples[J]. Optics Communications, 2003, 226(1–6): 241–248.

[15] [15] Wu Y D, Liu C L, Jhan G Y. All-optical switch based on the local nonlinear plasmonic Mach-Zehnder interferometer wave-guides[C]//Proceedings of the 2015 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), Taipei, Taiwan, 2015: 51–52.

[16] [16] Li F, Geng C, Li X Y, et al. Phase-locking control in all fiber link based on fiber coupler[J]. Opto-Electronic Engineering, 2017, 44(6): 602–609.