SPONTANEOUS SELF-PULSING AND CAVITY DUMPING IN A CO2 LASER WITH ELECTRO-OPTIC Q-SWITCHING
- 1 May 1969
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 14 (9) , 262-264
- https://doi.org/10.1063/1.1652805
Abstract
Spontaneous self‐pulsing has been observed in a 10.6‐μ CO2 laser, Q‐switched in ≈10 nsec by an internal GaAs electro‐optic cell, with no saturable absorber present. Each Q‐switched event consists of a train of ten or more 20‐nsec pulses with a total duration of ≈400 nsec in a single P(20) line. Electro‐optic dumping of the cavity energy near the peak of oscillation gives a single output pulse of ≈10‐kW peak power and 25‐nsec duration. A numerical comparison is made with the circulating π pulse theory of spontaneous pulsing.Keywords
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