Active Mode Locking

As hinted at before, mode locking is an important technique for the generation of ultrashort pulses. The “active” part here refers to the fact that the signal itself is being modulated in time via cavity losses or frequency modulation. This stands in opposition to passive mode locking, which typically consists of a saturable absorber placed in the cavity. This will be covered in more detail in the next section.

Table of Contents:

  1. Physics of Mode-Locking
  2. Time-Domain Treatment
  3. Frequency-Domain Treatment
  4. Variations of Active Mode-Locking

PHYSICS OF MODE-LOCKING

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