Wavelength-tunable prism-coupled external cavity passively mode-locked quantum-dot laser*
Wu Yan-Hua, Jian Wu, Jin Peng†, Wang Fei-Fei, Hu Fa-Jie, Wei Heng, Wang Zhan-Guo
       
Saturation parameters S of the SESAM at the different lasing wavelengths. The two dashed lines indicate the ideal operating range of the SESAM.