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US 4,065,732 AGranted
Energy resonating system with elimination of optical bench structure
AssigneeAvco Everett Research Laboratory, Inc.
InventorFrank H. Scammell
Life of this patent
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Abstract
A laser comprises an optical resonant cavity construction utilizing opposing corner cube and W-fold mirrors to provide a four-pass folded optical path which is not dependent upon critical alignment between the said mirrors and therefore eliminates necessity for rigid optical bench structure therebetween.
Claims9
Energy resonating system comprising:
- means defining at least one cavity space with primary and feedback mirrors,
- means defining a pair of additional opposing mirror assemblies bracketing the cavity space, said primary and feedback mirrors and said mirror assemblies defining an optically resonant cavity,
- means for energizing the cavity space, and
- mounting means for said mirror assemblies constructed and arranged to allow relative freedom of movement therebetween,
- one of said mirror assemblies being a W-fold mirror assembly and the other a corner cube mirror assembly producing a folded confocal optical reflecting path between the primary and feedback mirrors and including the component mirrors of said W-fold and corner cube assemblies so that occasional relative displacement from an initial alignment between said opposing mirror assemblies is at least substantially compensated notwithstanding relative movement therebetween.
2 more elements
Dependencies are inferred from the claim text.