Power scaling of diffusion-cooled lasers

An excitation and optical extraction geometry suitable for compact high power gas lasers is described. Multiple slab discharges are established in a diffusion-cooled radial electrode array. Each gain channel is independently driven from a common RF source via a resonant-cavity power distribution sys...

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Bibliographic Details
Published in:Optics and laser technology 1998-07, Vol.30 (5), p.331-336
Main Author: Seguin, H.J.J
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gas lasers including excimer and metal-vapor lasers
High power slab CO 2 laser
Lasers
Multi-channel waveguide laser
Optics
Physics
Radial array laser
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Description
Summary:An excitation and optical extraction geometry suitable for compact high power gas lasers is described. Multiple slab discharges are established in a diffusion-cooled radial electrode array. Each gain channel is independently driven from a common RF source via a resonant-cavity power distribution system. Radial excitation augmented with multi-channel self-injection phase locking provides stable optical power extraction at good efficiency. The concept is easily scalable to very high powers while dramatically reducing unit size and cost.
ISSN:0030-3992
1879-2545
DOI:10.1016/S0030-3992(98)00062-0