Method and apparatus for compensating for wave front distortion in a slab laser
Patent
·
OSTI ID:5022827
This patent describes an apparatus, comprising: a solid-state lasing medium having a longitudinally extending lasing axis; pumping means adjacent the lasing medium for impinging electromagnetic radiation upon the lasing medium; cooling means for flowing a fluid coolant across at least a portion of the lasing medium; means for introducing a positive focal power lens effect approximately equal in magnitude to the negative focal power lens effect to a central portion of the lasing medium between the lasing medium lateral edge portions; means for passing a beam of coherent light having a wavefront including multiple rays at least twice through the lasing medium in a direction generally along the lasing axis such that the rays in the wavefront traverse alternate regions of positive and negative focal powers of approximately equal magnitudes.
- Assignee:
- General Electric Co., Schenectady, NY
- Patent Number(s):
- US 4730324
- OSTI ID:
- 5022827
- Country of Publication:
- United States
- Language:
- English
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