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中文摘要：
利用化学腐蚀法在光纤包层表面成功制备了调制深度为3．9％的单壁碳纳米管饱和吸收体．组建了环形腔结构的全光纤掺铒光纤激光器，PASO备的单壁碳纳米管薄膜为锁模元件，利用倏逝场锁模实现了锁模输出．锁模脉冲的中心波长为1556nm，3dB光谱带宽为24nm，脉冲宽度为147fs，重复频率为150MHz．在520mW抽运功率下，平均输出功率为21mW，相应的单脉冲能量为0．14nJ．
英文摘要：
A saturable absorber of 3.9% modulation depth was prepared on the surface of a fiber clad with single-walled carbon nanotubes （SWCNT） using chemical corrosion method. An all-fiber Er-doped fiber laser was setup with a ring cavity, and was mode-locked successfully by evanescent field mode-locking using prepared saturable absorber of single-walled carbon nanotubes. A 147 fs mode-locking pulse is obtained near 1556 nm with a 3 dB bandwidth of 24 nm. The output power is 21 mW at a pump power of 520 mW, corresponding to a pulse energy of 0.14 nJ with a repetition rate of 150 MHz.
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