Two-wave emission from a cw solid-state YAG:Nd3+ laser

Simultaneous emission of two wavelengths, λ₁ = 1.064 μm and λ₂ = 1.318 μm, from a cw solid-state YAG:Nd³⁺ laser was achieved and studied experimentally. It was demonstrated that the spatial and amplitude characteristics of the λ₂ radiation could be controlled by modulating the losses of the λ₁ radiation. It was established that the stability of the radiation power at the two wavelengths could be enhanced by introduction of nonlinear losses. The emission of two cw series of pulses at wavelengths λ₁ and λ₂, and tuning of their relative delay was achieved.