Efficient laser oscillation of a new disordered Yb:CLNGG crystal

Abstract

Efficient continuous-wave laser operation is demonstrated at room temperature with a new disordered Yb:CLNGG crystal. A maximum output power of 5.0 W is generated at an absorbed pump power of 7.73 W, leading to an optical-tooptical efficiency of 65%, whereas the slope efficiency is determined to be as high as 83%.

Darboux transformations for a twisted derivation and quasideterminant solutions to the super KdV equation

“…In this case we were able to construct a much more general types of solution as well. In earlier work [37,38] only solutions expressed in terms of determinants were found. However, it is to be expected that for a supersymmetric integrable system the most general solutions have expressions in terms of superdeterminants rather than determinants.…”

“…Binary Darboux transformations for the MRSKdV system were discussed in [37,38]. In these articles, solutions expressed in terms of determinants were obtained.…”

“…As discussed in connection with Darboux transformations it is to be expected that solutions for this supersymmetric system should be superdeterminants in general. In this section, we will construct a more general type of binary Darboux transformation which will be shown to give these superdeterminants solutions and includes the solutions found in [37,38] as a special case. First we recall the definition of the adjoint for supersymmetric linear operators.…”

“…{ALP} for eigenvalue ξ. Given an (eigenfunction, adjoint) eigenfunction pair (θ, ρ), the binary Darboux transformation [37,38] is given by where eigenfunction θ and adjoint eigenfunction ρ have opposite parities. Since D Ω(φ, ψ = ψφ, Ω is even and assumed to be invertible.…”

“…Since D Ω(φ, ψ = ψφ, Ω is even and assumed to be invertible. When iterating this transformation, both previous papers [37,38] on this topic considered the case that all eigenfunctions are even and all adjoint eigenfunctions are odd. We will show that this is not the most general possibility however.…”