摘要

Monoclinic Y(2)SiO(5) was found to be an attractive, simultaneously laser and chi((3))-nonlinear active optical crystal. Passively Q-switched LD-pumped nanosecond Nd(3+):Y(2)SiO(5) self-Raman laser, operating by nonlinear-cascaded scheme is reported. We achieved also quasi-CW generation of Y(2)SiO(5):Nd(3+) at 1.3585 mu m. Many-wavelength Raman-induced chi((3))-lasing in undoped Y(2)SiO(5) under picosecond excitation has been observed, as well. All recorded Stokes and anti-Stokes components were identified and attributed to SRS-promoting vibration modes. Gives a short review of self-Raman lasers and laser potential of rare-earth C(2h)(6)-monoclinic orthosilicates doped with Ln(3+) lasants.
[GRAPHICS]
The dependences of the average output power versus incident pump power at lambda(p) approximate to 0.809 mu m wavelength of the nanosecond Nd(3+):Y(2)SiO(5) self-Raman laser at lambda(St1-1) =1.1947 mu m (shown by triangles) and of the quasi-CW Nd(3+):Y(2)SiO(5) laser at wavelengths of lambda(SE) = 1.3585 mu m ((4)F(3/2) -> (4)I(13/2)) and lambda(SE) = 1.