Full text loading...
:YAG absorptive and radiative transitions in the 1.45–1.66 μm spectral range.
Resonantly pumped :YAG (DPSSL) optical layout; planoconcave end mirror (30 mm ROC); plano–plano output coupler; Ar-coated intracavity lens; (P) diagnostic beam-splitter; diagnostic photodiodes; (LD) fiber-coupled pumping laser diode (1470 nm).
(1) and (2) Absorption spectra (left scale) measured at low and “threshold” excitation levels, respectively; (3) probe/excitation spectrum (right scale) of DL module.
Output power as a function of absorbed power for 1470-nm-pumped :YAG DPSSL with different output couplers: (1) , (2) and ; (3) and . Curves 1, 2, and 3 were measured at rod temperature 0 °C and dashed curves , and at 20 °C. Values of absorbed photon conversion efficiency for curves (1), (2), and , (3) and are 26%, 9%, and 20%, correspondingly. Inset shows the inverse absorbed photon conversion efficiency vs inverse output coupler transmission.
Article metrics loading...