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Mode locking

  • Walter Koechner
Part of the Springer Series in Optical Sciences book series (SSOS, volume 1)

Abstract

As we have seen in the previous chapter, the minimum pulse width obtainable from a reflection-mode Q-switched laser is of the order of 10 ns because of the required pulse buildup time. With the pulse-transmission technique, the pulse width can be reduced to a minimum of 1 to 2 ns. The limitation here is the length of the cavity, which determines the pulse length. Ultrashort pulses with pulse widths in the picosecond regime are obtained from solid-state lasers by mode locking. Employing this technique, which phase-locks the longitudinal modes emitted by the laser, the pulse width is inversely related to the bandwidth of the laser emission.

Keywords

Pulse Width Pulse Train Saturable Absorber Beat Frequency Passive Mode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1976

Authors and Affiliations

  • Walter Koechner
    • 1
  1. 1.Korad Division of Hadron, Inc.Santa MonicaUSA

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