Method for producing a highpower beam from a diode laser source

Details Method for producing a highpower beam from a diode laser source Method for producing a highpower beam from a diode laser source

1996-01-31

1998-08-11

Davie, James W.

Coherent light generators

Particular beam control device

Optical output stabilization

372 50, H01S 310

Patent

active

057937834

ABSTRACT:
A method of producing a high power and brightness beam from diode laser source that either has a single emitting element or array with a plurality of segments or emitters that are concurrently addressable, or has a plurality of elements or subarrays each having a plurality of laser segments or emitters, which elements or subarrays are independently addressable relative to one another. Beam filling and focusing optics are disposed in front of the emitters so that light from the individual emitters from each subarray converge to from a single overlapping spot. Segmentation of laser subarrays and emitters improves laser life by reducing thermal gradients and isolating any local failures to a single segment emitters, while the focusing of the segments or emitters to overlapping light spots increases the tolerance of the source to local failures. Two or more emitters in a given element must fail before the source is considered to have failed.

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