Modification of a commercial fir laser system for efficient operation at 337 GHz

Abstract

An Apollo Lasers model 122 far infrared laser system has been modified to allow sustained efficient operation at a wavelength of 890μm (337 Gigahertz). Modifications included installation of a circular metallic output cavity and redesign of the input and output couplers. Beam output profiles were taken to verify correct operation of the output coupler assembly. A simple automatic controller was implemented to provide unattended, automatic operation of the system.