Single longitudinal mode pumped optical waveguide laser arrangement

摘要: An optical waveguide laser arrangement includes a solid having waveguiding portion that extends along an axis between two spaced regions of the and is material capable emitting stimulated light upon excitation by pumping launched into for axial propagation through axially waveguide. Two reflectors are provided, each being disposed at one to delimit resonator. At least constituted Bragg grating consisting multitude consecutive periodic perturbations in refractive index respective cumulatively reflect reflectivity decreases adjacent longitudinal modes with increasing deviation from central wavelength. The length resonator, gain excitable so coordinated another as sustain lasing only single mode.