A REVIEW OF ER:YB:YAB CRYSTAL

The nonradiative changeover premiums Stick to the components WNR = W (0) exp(-alphap), where by p is the number of phonons matching the Electrical power gap. The nonradiative changeover premiums of Er3+ exhibit temperature dependence in step with the multiphonon relaxation principle. In Tm3+ the temperature dependence of nonradiative rest prices is