Optically pumped waveguide lasers

Abstract

Optically pumped waveguide gas lasers in the submillimeter and millimeter wave regions are simple, compact, rugged, efficient, practical, coherent sources. A number of new laser lines have been observed in these lasers. General considerations are given on the attenuation constants of waveguides and the rate equation models. Characteristics of these lasers are reviewed including output coupling, new laser line, mode, polarization, output power, stability, and compactness. Some applications are described briefly. Finally, future aspects are discussed.