E. M. Dianov, I. A. Bufetov, V. I. Karpov, M. V. Grekov, A. M. Prokhorov, “Continuous-wave Cr4+:Mg2SiO4 laser pumped by neodymium fibre-laser radiation”, Kvantovaya Elektronika, 1997, Volume 24, Number 9,Pages 771

Letters to the editor

Continuous-wave Cr⁴⁺:Mg₂SiO₄ laser pumped by neodymium fibre-laser radiation

E. M. Dianov^a, I. A. Bufetov^a, V. I. Karpov^a, M. V. Grekov^a, A. M. Prokhorov^b

^a Fiber Optics Research Center of the Russian Academy of Sciences, Moscow
^b Natural Sciences Center at General Physics Institute of RAS, Moscow

Abstract: The first single-mode cw laser with a Cr⁴⁺-activated forsterite crystal, pumped by radiation from a single-mode neodymium fibre laser, is described. The fibre laser is pumped by radiation from an array of semiconductor laser diodes. The Cr⁴⁺:Mg₂SiO₄ laser radiation is tunable in the wavelength range 1.21 — 1.29 μm. The maximum output power at the λ = 1.24 μm wavelength is 150 mW. Lasers with active media containing Cr⁴⁺ ions, pumped by fibre-laser radiation, are promising as pump sources for fibre Raman amplifiers operating at λ = 1.3 μm.

PACS: 42.55.Rz, 42.60.Pk

Received: 11.06.1997