L12_A
         Lesson 4: Passive Mode Locking

         Disadvantages of active mode locking 

         SPM ＋ Anomalous GVD–Optical soliton

         SPM ＋ Normal GVD–Wave breaking

         Impact of soliton & wave breaking

L12_B
         Lesson 4: Passive Mode Locking

         4-1 Master equation 

               Strategy

               Spectral effect: Cavity effect

               Spectral effect: Gain effect

               Spectral effect: GDD effect

L12_C
         Lesson 4: Passive Mode Locking

         4-1  Master equation 

               Transform to the time domain

               Effects of saturable absorber, dynamic gain

               Temporal effect: SPM effect