David Atkinson

David Hutson

Duncan P. Hand

Emma Bryce

Hook I.

Katherine Kirk

Krystian L. Wlodarczyk

Loktev M.

Mel Strachan

Noah Schwartz

Phil Parr-Burman

Robert R. J. Maier

Steven Beard

Tom Baillie

English

A prototype of a scalable and potentially low-cost stacked array piezoelectric deformable mirror (SA-PDM) with 35 active elements is presented in this paper. This prototype is characterized by a 2 μm maximum actuator stroke, a 1.4 μm mirror sag (measured for a 14 mm × 14 mm area of the unpowered SA-PDM), and a ±200 nm hysteresis error. The initial proof of concept experiments described here show that this mirror can be successfully used for shaping a high power laser beam in order to improve laser machining performance. Various beam shapes have been obtained with the SA-PDM and examples of laser machining with the shaped beams are presented

Wlodarczyk, Krystian Lukasz

Bryce, Emma

Strachan, Mel

Hutson, David

Maier, Robert Raimund Josef

Schwartz, Noah

Atkinson, David

Beard, Steven

Baillie, Tom

Parr-Burman, Phil

Kirk, Catherine

Hand, Duncan Paul

Heriot Watt Pure

Scalable stacked array piezoelectric deformable mirror for astronomy and laser processing applications

Scalable stacked array piezoelectric deformable mirror for astronomy and laser processing applications

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Heriot Watt Pure