Characteristics of stimulated emission from Li–Nd–La phosphate glass

An investigation was made of the characteristics of Li–Nd_0.3–La_0.7 phosphate glass with 8×10²⁰cm^-3 of Nd³⁺ These characteristics were obtained under free-oscillation, Q-switching, and pulse-periodic conditions. At moderate pumping rates the emitted radiation consisted of the TEM₀₀ mode with near-diffraction divergence. The investigated glass could emit in the pulse-periodic regime at a repetition frequency up to 100 Hz. The maximum average output power was 6.5 W when the pump power was 1 kW.