Ring Laser Cavities.
Patent Application, Filed 16 Sep 88,
DEPARTMENT OF THE NAVY WASHINGTON DC
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Diffraction limited, single narrow lobe radiation from a large area laser is achieved in a system using an external ring laser cavity to return radiation to the laser via a spatial filter and a Faraday rotator. An antireflectance coating of sufficiently small reflectivity added to the large area laser converts it into a laser amplifier which provides optical gain in a ring laser cavity. Keywords Laser cavities Patent applications. JHD
- Lasers and Masers