具有高平均功率、高峰值功率和窄脉宽的被动锁模皮秒激光器在高精度激光加工领域具有非常广泛的应用。可饱和吸收体是被动锁模激光器的关键元件,新型可饱和吸收体(SA)-单壁碳纳米管(SWCNT)具有波长覆盖范围较宽、制作方法简单、制备成本低等显著优点,被广泛应用于产生被动锁模激光。基于碳纳米管的被动锁模激光器的研究国 Passive mode-locked picosecond lasers with high average power, high peak power and narrow pulse width have a very wide range of applications in the field of high-precision laser processing. The saturable absorber is a key element of passive mode-locked lasers. The new type of SA absorber - single-walled carbon nanotubes (SWCNTs) has the advantages of wide wavelength coverage, simple fabrication method and low preparation cost. Used to produce passive mode-locked laser. Research on passive mode - locked lasers based on carbon nanotubes