On combined diode pumping of a passively Q-switched solid-state laser

Pulse interval jitter of a diode-pumped solid-state laser with instantaneous Q-switching of the resonator

“…(6), we should take into account the following circumstances. First, the time τ for an active element in the resonator is shorter than the time τ which is shown in the tables and measured for an active element outside the resonator [15]. Second, the inverted population density n i , which corresponds to the lasing onset time, can be smaller than the activator-ion concentration.…”

Pulse interval jitter of a passively and actively acousto-optically Q-switched solid-state laser

“…The high-Q switching corresponding to P a = 0 occurs for the time Δt B = D/V , where D is the effective diameter of the laser-beam cross section in the cell medium, and D ≤ b. The pulse generation of a solid-state laser starts at the instant t 0 when the inverse-population density n(t) [7,10] in the active cell and the threshold density n ia (t) become identical, namely,…”

“…Then, using the rate equations for a solid-state laser in a way similar to that in [7,10], we obtain the threshold density n ia of inverse population in the active cell…”