A new discharge circuit implementing the magnetic-spiker sustainer excitation is reported that overcomes the large, bulky and heavy size of the transformer for a high repetition rate CO2 laser. The new discharge circuit reduces the rms current flowing through the saturable core pulse transformer. An output of 5J and approx. 13% overall efficiency has been obtained from a helium-free gas mixture at 400 mbar on a working TE CO2 laser. The circuit also allows operation of the discharge at reduced voltage and extends the excitation current pulse durations (approx. 7 µs) over which arc-free discharges can be formed.
|Title of host publication||Proceedings of the 1994 Conference on Lasers and Electro-Optics Europe|
|Publication status||Published - 1994|
|Event||1994 Conference on Lasers and Electro-Optics Europe - Amsterdam, Netherlands|
Duration: 28 Aug 1994 → 2 Sep 1994
|Conference||1994 Conference on Lasers and Electro-Optics Europe|
|Period||28/08/94 → 2/09/94|