[1] H Zhang, D Y Tang, L M Zhao et al. Large energy mode locking of an erbium-doped fiber laser with atomic layer graphene. Opt Express, 17, 17630(2009).

[2] Z P Sun, T Hasan, F Torrisi et al. Graphene mode-locked ultrafast laser. ACS Nano, 4, 803(2010).

[3] J J Liu, J Liu, Z N Guo et al. Dual-wavelength Q-switched Er:SrF₂ laser with a black phosphorus absorber in the midinfrared region. Opt Express, 24, 30289(2016).

[4] K Y Lan, P J Ker, A F Abas et al. Long-term stability and sustainability evaluation for mode-locked fiber laser with graphene/PMMA saturable. Opt Commun, 435, 251(2019).

[5] L M Zhao, D Y Tang, X A Wu et al. Dissipative soliton generation in Yb-fiber laser with an invisible intracavity bandpass filter. Opt Lett, 35, 2756(2010).

[6] L Lu, Z M Liang, L M Wu et al. Few-layer bismuthene: sonochemical exfoliation, nonlinear optics and applications for ultrafast photonics with enhanced stability. Laser Photonics Rev, 12, 1700221(2018).

[7] X Wang, u Y J Zhu, g C Jiang et al. InAs/GaAs quantum dot semiconductor saturable absorber for controllable dual-wavelength passively Q-switched fiber laser. Opt Express, 27, 20649(2019).

[8] J Sotor, G Sobon, J Tarka et al. Passive synchronization of erbium and thulium doped mode-locked laser enhanced by common graphene saturable absorber. Opt Express, 22, 5536(2014).

[9] A Martinez, K Fuse, B Xu et al. Optical deposition of graphene and carbon nanotubes in a fiber ferrule for passive modelocked lasing. Opt Express, 18, 23054(2010).

[10] Z Y Zhang, A E H Oehler, B Resan et al. 1.55 μm InAs/GaAs quantum dots and high repetition rate quantum dot SESAM mode-locked laser. Sci Rep-UK, 2, 477(2012).

[11] Z T Wang, Y Chen, C J Zhao et al. Switchable dual-wavelength synchronously Q-switched erbium-doped fiber laser based on graphene saturable absorber. IEEE Photonics J, 4, 869(2012).

[12] V Ashoori, M Shayganmanesh. Analytical thermal modeling of graphene-clad microfiber as a saturable absorber in ultrafast fiber lasers. Appl Phys B, 125, 40(2019).

[13] R L Zhang, J Wang, M S Liao et al. Tunable Q-switched fiber laser based on a graphene saturable without additional tuning element. IEEE Photonics J, 11, 1500310(2019).

[14] A Martinez, Z P Sun. Nanotube and graphene saturable absorbers for fiber lasers. Nat Photonics, 7, 842(2013).

[15] H Zhang, D Y Tang, R J Knize et al. Graphene mode locked, wavelength-tunable, dissipative soliton fiber laser. Appl Phys Lett, 96, 111112(2010).

[16] J Ma, G Q Xie, P P Lv et al. Graphene mode-locked femtosecond laser at 2 μm wavelength. Opt Lett, 37, 2085(2012).

[17] J Hader, H J Yang, M Scheller et al. Microscopic analysis of saturable absorbers: Semiconductor saturable absorber mirrors versus graphene. J Appl Phys, 119, 053102(2016).

[18] Q L Bao, H Zhang, Z H Ni et al. Monolayer graphene as a saturable absorber in a mode-locked laser. Nano Res, 4, 297(2011).

[19] Q L Bao, H Zhang, Y Wang et al. Atomic-layer graphene as a saturable absorber for ultrafast pulsed lasers. Adv Funct Mater, 19, 3077(2009).

[20] A C Ferrari. Raman spectroscopy of graphene and graphite: Disorder, electron-phonon coupling, doping and nonadiabatic effects. Solid State Commun, 143, 47(2007).

[21] M S Dresselhaus, A Jorio, M Hofmann. Perspectives on carbon nanotubes and graphene Raman spectroscopy. Nano Lett, 10, 751(2010).

[22] X Zhang, X F Qiao, W Shi et al. Phonon and Raman scattering of two-dimensional transition metal dichalcogenides from monolayer, multilayer to bulk material. Chem Soc Rev, 44, 2757(2015).

[23] S Botti, A Rufoloni, A Vannozzi et al. Investigation of CVD grown graphene topography. AIP Conf Proc, 1990(2018).

[24] X H Li, K Wu, Z P Sun et al. Single-wall carbon nanotubes and graphene oxide-based saturable absorbers for low phase noise mode-locked fiber lasers. Sci Rep-UK, 6, 25266(2016).

[25] Z Q Luo, Y Y Li, M Zhong et al. Nonlinear optical absorption of few-layer molybdenum diselenide (MoSe₂) for passively mode-locked soliton fiber laser. Photonics Res, 3, A79(2015).

[26] X H Li, X C Yu, Z P Sun et al. High-power graphene mode-locked Tm/Ho co-doped fiber laser with evanescent field interaction. Sci Rep-UK, 5, 16624(2015).