[1] Kippenberg T J, Holzwarth R, Diddams S A. Microresonator-based optical frequency combs[J]. Science, 332, 555-559(2011).

[2] Fortier T, Baumann E. 20 years of developments in optical frequency comb technology and applications[J]. Communications Physics, 2, 153(2019).

[3] Diddams S A, Vahala K, Udem T. Optical frequency combs: coherently uniting the electromagnetic spectrum[J]. Science, 369, eaay3676(2020).

[4] Cundiff S T, Ye J, Hall J L. Optical frequency synthesis based on mode-locked lasers[J]. Review of Scientific Instruments, 72, 3749-3771(2001).

[5] Wang C, Chang B, Tan T et al. High energy and low noise soliton fiber laser comb based on nonlinear merging of Kelly sidebands[J]. Optics Express, 30, 23556-23567(2022).

[6] Zhang M, Buscaino B, Wang C et al. Broadband electro-optic frequency comb generation in a lithium niobate microring resonator[J]. Nature, 568, 373-377(2019).

[7] Carlson D R, Hickstein D D, Zhang W et al. Ultrafast electro-optic light with subcycle control[J]. Science, 361, 1358-1363(2018).

[8] Kippenberg T J, Gaeta A L, Lipson M et al. Dissipative Kerr solitons in optical microresonators[J]. Science, 361, eaan8083(2018).

[9] Shen B Q, Chang L, Liu J Q et al. Integrated turnkey soliton microcombs[J]. Nature, 582, 365-369(2020).

[10] Chang B, Tan T, Du J T et al. Dispersive Fourier transform based dual-comb ranging[J]. Nature Communications, 15, 4990(2024).

[11] Li J T, Chang B, Du J T et al. Coherently parallel fiber-optic distributed acoustic sensing using dual Kerr soliton microcombs[J]. Science Advances, 10, eadf8666(2024).

[12] Liang Y P, Liu M Y, Tang F et al. Harnessing sub-comb dynamics in a graphene-sensitized microresonator for gas detection[J]. Frontiers of Optoelectronics, 17, 12(2024).

[13] Qin C Y, Du J T, Tan T et al. Co-generation of orthogonal soliton pair in a monolithic fiber resonator with mechanical tunability[J]. Laser & Photonics Reviews, 17, 2200662(2023).

[14] Geng Y, Zhou H, Han X J et al. Coherent optical communications using coherence-cloned Kerr soliton microcombs[J]. Nature Communications, 13, 1070(2022).

[15] Yi X, Yang Q F, Yang K Y et al. Soliton frequency comb at microwave rates in a high-Q silica microresonator[J]. Optica, 2, 1078-1085(2015).

[16] Wang X Y, Xie P, Wang W Q et al. Program-controlled single soliton microcomb source[J]. Photonics Research, 9, 66-72(2021).

[17] Joshi C, Jang J K, Luke K et al. Thermally controlled comb generation and soliton modelocking in microresonators[J]. Optics Letters, 41, 2565-2568(2016).

[18] Yao S Y, Wei Z Q, Guo Y N et al. Self-frequency shift of AlN-on-sapphire Kerr solitons[J]. Optics Letters, 46, 5312-5315(2021).

[19] Gong Z, Bruch A, Shen M H et al. High-fidelity cavity soliton generation in crystalline AlN micro-ring resonators[J]. Optics Letters, 43, 4366-4369(2018).

[20] Cai L, Li J, Wang R et al. Octave-spanning microcomb generation in 4H-silicon-carbide-on-insulator photonics platform[J]. Photonics Research, 10, 870(2022).

[21] Wang C L, Cai J C, Zhou L P et al. Progress of silicon carbide integrated photonics[J]. Acta Optica Sinica, 43, 1623017(2023).

[22] Chang L, Xie W Q, Shu H W et al. Ultra-efficient frequency comb generation in AlGaAs-on-insulator microresonators[J]. Nature Communications, 11, 1331(2020).

[23] Moille G, Chang L, Xie W Q et al. Dissipative Kerr solitons in a Ⅲ‒Ⅴ microresonator[J]. Laser & Photonics Reviews, 14, 2000022(2020).

[24] Xia D, Yang Z L, Zeng P Y et al. Integrated chalcogenide photonics for microresonator soliton combs[J]. Laser & Photonics Reviews, 17, 2200219(2023).

[25] Wang C, Zhang M, Yu M J et al. Monolithic lithium niobate photonic circuits for Kerr frequency comb generation and modulation[J]. Nature Communications, 10, 978(2019).

[26] Yang H, Yang Q, Ling J et al. Self-starting bi-chromatic LiNbO3 soliton microcomb[J]. Optica, 6, 1138-1144(2019).

[27] Yang Y K, Cheng J L, Wen Y J et al. Evolution and thermal self-stability analysis of optical frequency combs in silicon nitride microcavity[J]. Laser & Optoelectronics Progress, 60, 1106029(2023).

[28] Xia D, Yang Z, Zeng P et al. Integrated chalcogenide photonics for microresonator soliton combs[J]. Laser and Photonics Reviews, 17, 1-9(2023).

[29] Wang C L, Li Z H, Riemensberger J et al. Lithium tantalate photonic integrated circuits for volume manufacturing[J]. Nature, 629, 784-790(2024).

[30] Pfeiffer M H P, Kordts A, Brasch V et al. Photonic Damascene process for integrated high-Q microresonator based nonlinear photonics[J]. Optica, 3, 20-25(2016).

[31] Yang K Y, Oh D Y, Lee S H et al. Bridging ultrahigh-Q devices and photonic circuits[J]. Nature Photonics, 12, 297-302(2018).

[32] Liu J Q, Huang G H, Wang R N et al. High-yield, wafer-scale fabrication of ultralow-loss, dispersion-engineered silicon nitride photonic circuits[J]. Nature Communications, 12, 2236(2021).

[33] Xiang C, Liu J Q, Guo J et al. Laser soliton microcombs heterogeneously integrated on silicon[J]. Science, 373, 99-103(2021).

[34] Xiang C, Guo J, Jin W et al. High-performance lasers for fully integrated silicon nitride photonics[J]. Nature Communications, 12, 6650(2021).

[35] Ji X C, Barbosa F A S, Roberts S P et al. Ultra-low-loss on-chip resonators with sub-milliwatt parametric oscillation threshold[J]. Optica, 4, 619-624(2017).

[36] Ji X C, Jang J K, Dave U D et al. Exploiting ultralow loss multimode waveguides for broadband frequency combs[J]. Laser & Photonics Reviews, 15, 2000353(2021).

[37] Ji X C, Roberts S, Corato-Zanarella M et al. Methods to achieve ultra-high quality factor silicon nitride resonators[J]. APL Photonics, 6, 071101(2021).

[38] Ji X C, Okawachi Y, Gil-Molina A et al. Ultra-low-loss silicon nitride photonics based on deposited films compatible with foundries[J]. Laser & Photonics Reviews, 17, 2200544(2023).

[39] Ye Z C, Jia H Y, Huang Z J et al. Foundry manufacturing of tight-confinement, dispersion-engineered, ultralow-loss silicon nitride photonic integrated circuits[J]. Photonics Research, 11, 558-568(2023).

[40] Zhao S Y, Yang H Z, Chen S F et al. Self-starting and integration method of multi-state microcavity optical frequency combs[J]. Laser & Optoelectronics Progress, 61, 2313002(2024).

[41] Voloshin A S, Kondratiev N M, Lihachev G V et al. Dynamics of soliton self-injection locking in optical microresonators[J]. Nature Communications, 12, 235(2021).

[42] Stern B, Ji X C, Okawachi Y et al. Battery-operated integrated frequency comb generator[J]. Nature, 562, 401-405(2018).

[43] Raja A S, Voloshin A S, Guo H R et al. Electrically pumped photonic integrated soliton microcomb[J]. Nature Communications, 10, 680(2019).

[44] Ling J W, Gao Z D, Xue S X et al. Electrically empowered microcomb laser[J]. Nature Communications, 15, 4192(2024).

[45] Liu J Q, Tian H, Lucas E et al. Monolithic piezoelectric control of soliton microcombs[J]. Nature, 583, 385-390(2020).

[46] Yu Q H, Gao J Y, Ye N et al. Heterogeneous photodiodes on silicon nitride waveguides with 20 GHz bandwidth[C](2020).

[47] Shu H W, Chang L, Tao Y S et al. Microcomb-driven silicon photonic systems[J]. Nature, 605, 457-463(2022).

[48] Suh M G, Vahala K J. Soliton microcomb range measurement[J]. Science, 359, 884-887(2018).

[49] Trocha P, Karpov M, Ganin D et al. Ultrafast optical ranging using microresonator soliton frequency combs[J]. Science, 359, 887-891(2018).

[50] Jang Y S, Liu H, Yang J H et al. Nanometric precision distance metrology via hybrid spectrally resolved and homodyne interferometry in a single soliton frequency microcomb[J]. Physical Review Letters, 126, 023903(2021).

[51] Wang J D, Lu Z Z, Wang W Q et al. Long-distance ranging with high precision using a soliton microcomb[J]. Photonics Research, 8, 1964-1972(2020).

[52] Riemensberger J, Lukashchuk A, Karpov M et al. Massively parallel coherent laser ranging using a soliton microcomb[J]. Nature, 581, 164-170(2020).

[53] Lukashchuk A, Riemensberger J, Karpov M et al. Dual chirped microcomb based parallel ranging at megapixel-line rates[J]. Nature Communications, 13, 3280(2022).

[54] Chen R X, Shu H W, Shen B T et al. Breaking the temporal and frequency congestion of LiDAR by parallel chaos[J]. Nature Photonics, 17, 306-314(2023).

[55] Lukashchuk A, Riemensberger J, Tusnin A et al. Chaotic microcomb-based parallel ranging[J]. Nature Photonics, 17, 814-821(2023).

[56] Karpov M, Pfeiffer M H P, Liu J Q et al. Photonic chip-based soliton frequency combs covering the biological imaging window[J]. Nature Communications, 9, 1146(2018).

[57] Ji X C, Yao X W, Klenner A et al. Chip-based frequency comb sources for optical coherence tomography[J]. Optics Express, 27, 19896-19905(2019).

[58] Bao C Y, Suh M G, Vahala K. Microresonator soliton dual-comb imaging[J]. Optica, 6, 1110-1116(2019).

[59] Picqué N, Hänsch T. Frequency comb spectroscopy[J]. Nature Photonics, 13, 146-157(2019).

[60] Coddington I, Newbury N, Swann W. Dual-comb spectroscopy[J]. Optica, 3, 414-426(2016).

[61] Yu M J, Okawachi Y, Joshi C et al. Gas-phase microresonator-based comb spectroscopy without an external pump laser[J]. ACS Photonics, 5, 2780-2785(2018).

[62] Suh M G, Yang Q F, Yang K Y et al. Microresonator soliton dual-comb spectroscopy[J]. Science, 354, 600-603(2016).

[63] Dutt A, Joshi C, Ji X C et al. On-chip dual-comb source for spectroscopy[J]. Science Advances, 4, e1701858(2018).

[64] Yu M J, Okawachi Y, Griffith A G et al. Silicon-chip-based mid-infrared dual-comb spectroscopy[J]. Nature Communications, 9, 1869(2018).

[65] Bao C Y, Yuan Z Q, Wang H M et al. Interleaved difference-frequency generation for microcomb spectral densification in the mid-infrared[J]. Optica, 7, 309-315(2020).

[66] Bao C Y, Yuan Z Q, Wu L et al. Architecture for microcomb-based GHz-mid-infrared dual-comb spectroscopy[J]. Nature Communications, 12, 6573(2021).

[67] He X Y, Chang B, Yang Z Y et al. Fiber-optic microphone radar driven by dual-soliton-microcomb[C], 4-7(2023).

[68] Chang B, Li J T, He X Y et al. Dual-soliton-microcombs based coherent fiber-optic distributed acoustic sensing[C](2023).