Dye laser with rotating wedge alignment servo

Details Dye laser with rotating wedge alignment servo Dye laser with rotating wedge alignment servo

1983-09-07

1985-04-30

Sikes, William L.

Coherent light generators

Particular beam control device

Having particular beam control circuit component

372107, 372 98, 372 26, 372 76, 372 38, 372 54, H01S 313

Patent

active

045148490

ABSTRACT:
A laser-pumped laser system is disclosed, such as a dye laser which is optically pumped by an argon ion laser. An improved servo system is provided for maintaining relative alignment of the pump laser beam with respect to the dye laser cavity. This is accomplished by rotating the pump beam such that the beam defines a conical surface, by means such as an optically-transmissive rotating wedge. Such rotation provides dithering along two orthogonal axes, which provides the necessary control information to maintain pump beam alignment.

REFERENCES:
Winter et al., "An Improved Reference Interferometer Incorporating an Angular Positioning Servo, Used to Tune a Narrow Band Width Optical Filter"; J. Phys. E: Sci. Inst. vol. 14, p. 439, 1981.

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