Time-resolved spectral output of pulsed GaAs lasers

In the practical application of pulsed injection lasers it is necessary to distinguish between the power and energy spectra. Most workers never distinguish or identify spectra. When the terms are used, power and energy spectra have been used interchangeably with the resultant confusion. Due to the closer spacing between modes in gas and insulator-type lasers, this distinction is not nearly so important as it is for injection lasers.