초록 ▼

The design and application of an uncoated sapphire crystal as a beamsplitter and output coupler of a laser resonator includes placing the crystal sufficiently close to the Brewster angle to intercept a beam from a lasing medium in a free electron laser to provide a Fox-Smith type resonator or a Mich

The design and application of an uncoated sapphire crystal as a beamsplitter and output coupler of a laser resonator includes placing the crystal sufficiently close to the Brewster angle to intercept a beam from a lasing medium in a free electron laser to provide a Fox-Smith type resonator or a Michelson type resonator depending on the optical path through the crystal to enable use of high power lasers in interferometric and optical coupling measurements.

대표청구항 ▼

In a high intensity laser of the type having three reflective surfaces and beam splitting means for producing a plurality of optical paths using a lasing medium having opposite ends and located between two of said reflective surfaces with the beam splitting means being located between one of the ref

In a high intensity laser of the type having three reflective surfaces and beam splitting means for producing a plurality of optical paths using a lasing medium having opposite ends and located between two of said reflective surfaces with the beam splitting means being located between one of the reflective surfaces and one of said ends of the lasing medium, said beam splitting means comprising a birefringent crystal having at least two substantially parallel surfaces, a first one of said optical paths passing between said two reflective surfaces and through said lasing medium, said two parallel surfaces of said crystal intercepting said first one of said optical paths at an angle of interception sufficiently close to Brewster\s angle such that another of said optical paths is created from a first one of said two parallel surfaces with a beam having a polarization of one type and a further one of said optical paths is created from the second one of said two parallel surfaces with a beam having a polarization that is different from that of said one type, said further one of said optical paths including said third of said reflective surfaces.