L13_A
Lesson 4: Passive Mode Locking
4-1 Master equation
Temporal effect: SPM effect
Carrier‐envelope phase (CEP) shift
4-2 PML with SAM only
Does “fast” saturable absorber really exist
Assumptions of Sec. 4‐2
Fast saturable absorbers
L13_B
Lesson 4: Passive Mode Locking
4-2 PML with SAM only
Slow gain
Approximated solution
How to calculate the constant gain
Simplified (real) master equation
Real sech solution
L13_C
Lesson 4: Passive Mode Locking
4-2 PML with SAM only
Real sech solution
Two equations for {a0, tp}
Meanings of the two equations
Steady state: gain equals average loss
L13_D
Lesson 4: Passive Mode Locking
4-2 PML with SAM only
Lasing condition
Graphical solution
Over‐pump prohibits single pulse solution
