Year: 1979
Type: article
Abstract: The first observations were made of phase-conjugate reflection at 10.6 μ . A novel intracavity technique of general utility for any oscillating laser system was used. In one arrangement, germanium was placed in a TEA CO 2 laser cavity to utilize the intracavity counterpropagating (strong) waves in degenerate fourwave mixing. Reflectivities up to 20% were obtained. In a second arrangement, phase-conjugate reflection and amplification with an effective gain in excess of unity was achieved by redirecting the output of a TEA CO 2 laser oscillator into its own active medium. The strong counterpropagating waves coupled with the saturated-gain medium to provide nonlinearity in a process analogous to degenerate four-wave mixing.
Authors: I J Bigio, B J Feldman, R A Fisher, E E Bergmann
Institution: Los Alamos National Laboratory
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2020037456