[1] Xiang H L, Li Y. Experimental Study on Multi Wavelength Erbium-doped Fiber Laser based on FBG[J]. Journal of Xi'an University of Posts and Telecommunications, 23, 80-86(2018).

[2] Yang X F, Fang X L, Tong Z R et al. Experimental Study of Multi-wavelength Erbium-doped Fiber Laser based on Phase-shifted Fiber Grating[J]. Chinese Journal of Lasers, 39, 52-55(2012).

[3] Li Z Y. Theoretical Analysis and Experimental Study on Filtering and Frequency Stabilization Characteristics of Multi-wavelength Fiber Lasers[D](2020).

[4] Li Z. Study on Several Key Technology of Microwave Photonic Signal Processing[D](2012).

[5] Xu Z W. Novel Microwave Photonic Filter and its Applications[D](2014).

[6] Li P X. Key Technologies for Dynamic Spectrum Manipulations of Microwave Photonic Signal[D](2020).

[7] Xie F F. Theoretical Research and Application of Chirped Fiber Bragg Grating in Communication System[D](2014).

[8] Pei L, Wu L Y, Wang J S et al. Distributed Strain and Strain Point Precision Positioning Sensing of Chirped Phase-shifted Fiber Grating[J]. Acta Physica Sinica, 66, 19-27(2017).

[9] Xu X M. Theoretical Study and Experimental Fabrication of Phase-sampling Fiber Bragg Grating[D](2005).

[10] Cui L P, Wu Y M. Spectral Characteristics of the Cascaded Long-Period Gratings[J]. Acta Optica Sinica, 1019-1024(2005).

[11] Wang X, Yu C X, Yu Z H et al. Interinter Sampled Fiber Bragg Grating for Multi-channel Filter[J]. Optical Technique, 117-119(2005).

[12] Guo L P, Ge Y L, Liu X J. Filtering Properties of Reflectingvolume Bragg Gratings[J]. Laser Journal, 40, 52-55(2019).

[13] Zhao D H, Yang X F, Liu Z G et al. Analysis for Characteristics of the Phase Shifted Fiber Grating[J]. Journal of Optoelectronics·Laser, 7-10(1998).

[14] Cai L L, Wu F, Wang Y T. Analysis for the Reflection Spectrum Characteristics of Phase-shift Fiber Grating[J]. Chinese Journal of Lasers, 36, 2070-2075(2009).

[15] Xiao Y L. Analysis of the Phase-shift Fiber Grating Spectral Properties[J]. Science Technology and Engineering, 2462-2464,2476(2008).

[16] Zou X H, Li M, Pan W et al. Multichannel Narrow, Flat-top Optical Filters based on Multiple-phase-shifted and Phase Sampled FBG[J]. IEEE Journal of Quantum Electronics, 53, 1-5(2017).

[17] Hu S, Dai R Z, Yuan G J et al. All-fiber Optical Filter with an Ultranarrow and Rectangular Spectral Response[P].

[18] Erdogan T. Fiber Grating Spectra[J]. Journal of Light-wave Technology, 15, 1277-1294(1997).

[19] Li W, Lit J W Y. Phase-shifted Bragg Grating Filters with Symmetrical Structures[J]. Journal of Lightwave Technology, 15, 1405-1410(1997).

[20] Xie B. Investigation and Design of Optical Filter based on Optical Fiber Bragg Grating[D](2008).