The Optimum Line Width for a Reflection Cavity Maser

Abstract

It has been pointed out previously (Troup 1959, hereinafter referred to as I) that there is an optimum line width for the transition used in a reflection cavity maser and that this optimum line width gives maximum bandwidth for a given gain. However, it was not explicitly deduced in I that this optimum line width actually gives the maximum value of (Gain)l xBandwidth product for a given cavity maser system. This note makes the appropriate deduction.