| 摘要 |
A monolithic laser cavity 1 for use in a diode-pumped solid state laser comprises a pair of mirrors 4, 5, forming input and output ends of the cavity 1. Arranged between the mirrors 4, 5 is an amplifying element 6, a birefringent element 7, an optically isotropic element 8, and a birefringent nonlinear optical element 9. The birefringent element 7 is arranged at an angle to the optical axis of the cavity 1 such that parallel surfaces of the birefringent element 7 act as polarising elements, and such that the birefringent element 7 acts as a first Lyot filter within the laser cavity 1, and the angled birefringent element 7, the birefringent nonlinear optical element 9 and cavity mirror 5 following the birefringent nonlinear optical element 9 together act as a second Lyot filter within the laser cavity 1, thereby providing wavelength selection within the laser cavity 1. |
