Design of a High Power Submillimeter Oscillator-Amplifier System
1976
A submillimeter laser source for an ion-temperature diagnostic of a thermonuclear plasma will require approximately a one megawatt narrowlinewidth pulse with a duration of 150–300 nsec [1]. An oscillator-amplifier system optically pumped by a CO 2 TEA laser system of the type developed by Chang and Bridges is being constructed for this purpose [2]. To meet these requirements a wavelength insensitive submillimeter oscillator, based on an unstable resonator cavity design, is being developed to drive a large volume submillimeter amplifier. The oscillator will be optically pumped by a 15 joule TEA CO 2 laser and the amplifier is to be pumped by a 150 joule TEA CO 2 laser. Presently, the oscillator characteristics are being determined by using the 496 μm CH 3 F line and the 447 CH 3 I line.
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