ESTIMATING THE SPECTRAL WIDTH OF EMISSION OF SOLID-STATE LASERS OPERATING UNDER NONSTATIONARY CONDITIONS,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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Under nonstationary conditions many types of oscillation modes are simultaneously generated unless measures are taken to select them. In lasers with plane-parallel mirrors every generating mode can be described with adequate accuracy by a plane wave of a certain frequency and direction. Consequently the coexistence of many modes unavoidably increases angular and spectral width of emission.
- Lasers and Masers