Amplifiers – Parametric amplifiers – Semiconductor type
Patent
1988-11-18
1991-01-22
Moskowitz, Nelson
Amplifiers
Parametric amplifiers
Semiconductor type
372 22, 307427, H01S 330, H01S 3081, H01S 3045
Patent
active
049873768
ABSTRACT:
A compact, powerful, single slab laser oscillator-amplifier system immersed in a high pressure gas which acts as a Raman shifting medium to shift the oscillator output wavelengths from the 1060-3000 nm range to the 1100-14000 nm range. The Raman shifting gas is conained within the casing (29) which also encloses a laser oscillator defined along the long axis of the slab laser medium (1) between dielectric mirror (2) and partially reflecting mirror (3). An electro-optic switch (7) is provided and slab (1) is pumped via a pump light source (22) while being cooled by Peltier stack (26). The slab also includes dielectric mirror (12) and anti-reflection coating (13) which act in conjunction with the slab laser medium (1) and the mirrored substrate (10) to form the amplifier portion of the system. Light passed from the oscillator through prism (4) is reflected by bevelled portion (9) of mirror (10) and directed to slab (1) where it is amplified and reflected by mirror (12). During successive reflections between slab (1) and mirror (10) a Raman shifted beam is generated and is emitted via collimator (19).
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patent: 4751714 (1988-06-01), Cher
patent: 4809291 (1989-02-01), Byer et al.
Jones, W. B., "The Slab Geometry Laser", Laser Focus, vol. 19, #9, pp. 106-114, 9/83.
Summers et al., "High Average Power . . . Laboratory", SPIE, High Power and Solid State Lasers, vol. 622, pp. 2-9, 1/24/86, abst. provided.
Australian Electro Optics Pty Ltd.
Moskowitz Nelson
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