[1] [1] Dang B L, Larrode M G, Prasad R V, et al.. Radio-over-fiber based architecture for seamless wireless indoor communication in the 60 GHz band［J］. Computer Communications, 2007, 30(18): 3598-3613.

[2] [2] Zhang D, Zhao J, Yang Q, et al.. Compact MEMS external cavity tunable laser with ultra-narrow linewidth for coherent detection［J］. Opt Express, 2012, 20(18):19670-19682.

[3] [3] Kobayashi G, Kiyota K, Kimoto T, et al.. Narrow linewidth tunable light source integrated with distributed reflector laser array［C］. in Proc OFC, 2014: Tu2H.2.

[4] [4] Seimetz M. Laser linewidth limitations for optical systems with high-order modulation employing feed forward digital carrier phase estimation［C］. In Proc OFC/NFOEC, 2008: OTuM2.

[5] [5] Pan Biwei, Yu Liqiang, Lu Dan, et al.. 20 kHz narrow linewidth fiber bragg grating external cavity semiconductor Laser［J］. Chinese J Lasers, 2015, 42(5):0502007.

[6] [6] Pan B, Lu D, Sun Y, et al.. Tunable optical microwave generation using self-injection locked monolithic dual-wavelength amplified feedback laser［J］. Optics letters, 2014, 39(22):6395-6398.

[7] [7] Dijk F V, Accard A, Enard A, et al.. Monolithic dual wavelength DFB lasers for narrow linewidth heterodyne beat-note generation［C］. 2011 International Topical Meeting on & Microwave Photonics Conference in Microwave Photonics, IEEE,2011:73-76.

[8] [8] Brox O, Bauer S, Radziunas M, et al.. High-frequency pulsations in DFB lasers with amplified feedback［J］. IEEE J Quantum Electron,2003,39(11):1381-1387.

[9] [9] Yee D S, Leem Y A, Kim S B, et al.. Loss-coupled distributed-feedback lasers with amplified optical feedback for optical microwave generation［J］. Opt Lett,2004,29(19):2243-2245.

[10] [10] Yu L Q, Lu D, Pan B W, et al.. Monolithically integrated amplified feedback lasers for high-quality microwave and broadband chaos generation［J］. J Lightwave Technol, 2014,32(20):3595-3601.