[1] Zhou X, Zheng X P, Wen H et al. Pair-by-pair pulse shaping for optical arbitrary waveform generation by dual-comb heterodyne[J]. Optics Letters, 38, 5331-5333(2013).

[2] Winkler G, Fellinger J, Seres J et al. Non-planar femtosecond enhancement cavity for VUV frequency comb applications[J]. Optics Express, 24, 5253-5262(2016).

[3] Vainio M, Karhu J. Fully stabilized mid-infrared frequency comb for high-precision molecular spectroscopy[J]. Optics Express, 25, 4190-4200(2017).

[4] Gutierrez F A, Martin E P, Perry P et al. WDM orthogonal subcarrier multiplexing[J]. Journal of Lightwave Technology, 34, 1815-1823(2016).

[5] Shang L, Wen A J, Lin G B et al. A flat and broadband optical frequency comb with tunable bandwidth and frequency spacing[J]. Optics Communications, 331, 262-266(2014).

[6] Li Y N. External modulator optical frequency comb generation technology and the multi-frequency local oscillator generation Xi'an:[D]. Xidian University(2018).

[7] Li W L, Yu C Y, Fei B et al[J]. Single electro-absorption modulator-based generation of super-flat dual optical frequency combs Study on Optical Communications, 2015, 42-45.

[8] Shao Q. Research on the generation technology of optical frequency comb based on external modulation and microwave frequency comb[D]. Nanjing: Nanjing University of Posts and Telecommunications(2016).

[9] Lin G B. Research on optical frequency comb generation and application in WDM system Xi'an:[D]. Xidian University(2014).

[10] Han Y S, Lu M T, Zheng J W et al. Design of flat multi-carrier light source with adjustable frequency spacing[J]. Acta Photonica Sinica, 47, 122-129(2018).

[11] Del'Haye P, Arcizet O, Schliesser A et al. Full stabilization of a microresonator-based optical frequency comb[J]. Physical Review Letters, 101, 053903(2008).

[12] Melo S A S, do Nascimento A R, Cerqueira S A et al. Frequency comb expansion based on optical feedback, highly nonlinear and erbium-doped fibers[J]. Optics Communications, 312, 287-291(2014).

[13] Xie G H, Liu Y, Luo D P et al. Fiber optical frequency combs[J]. Chinese Journal of Nature, 41, 15-23(2019).

[14] Moskalenko V, Koelemeij J, Williams K et al. Study of extra wide coherent optical combs generated by a QW-based integrated passively mode-locked ring laser[J]. Optics Letters, 42, 1428-1431(2017).

[15] Ma J D, Wu H Y, Lu Q et al. Fiber-type difference frequency generation infrared optical frequency comb based on the femtosecond pulses generated by a mode-locked fiber laser[J]. Acta Physica Sinica, 67, 094207(2018).