Direct diode-pumped laser operation of Cr^3+- doped LiInGeO_4 crystals

Abstract

Quasi-continuous wave (cw) laser action has been demonstrated by direct diode pumping of a new extremely broadband Cr(3+)-doped crystal. In contrast to previous works, where large-frame pump lasers have been employed, we have shown that low-power direct diode pumping of LiInGeO(4) is feasible, opening up the way for realizing compact and efficient laser sources for telecommunication applications.

High-peak-power optically-pumped AlGaInAs eye-safe laser with a silicon wafer as an output coupler: comparison between the stack cavity and the separate cavity

“…High-peak-power lasers in the eye-safe wavelength region near 1.5-1.6 μm have been developed by several ways [1][2][3][4][5][6][7][8][9][10][11][12] including the stimulated Raman scattering, the optical parametric oscillators pumped by Nd-doped lasers, and the solid-state lasers (SSLs) directly using Er 3+ -doped or Cr 4+ -doped as the gain media. In addition to SSLs, optically-pumped InP-based semiconductor lasers are identified to be another promising technology for developing high-peak-power eye-safe laser sources.…”

Crystal growth, spectral properties and crystal field analysis of Cr3+:MgWO4

“…13 Cr 3+ :LCAF and Cr 3+ :LSAF based, linearly polarized, single-mode diodes pumped laser systems were demonstrated for the research on femtosecond tuning by U. Demirbas et al 14 Meanwhile, Cr 3+ :LCAF and Cr 3+ :LSAF based systems with ultrahigh repetition rate, ultrahigh peak energy, low-cost and efficient were reported by many researchers. [15][16][17][18] Besides the Cr 3+ :Colquiriite crystals, there are several Cr 3+ ion doped crystals considered as femtosecond laser media such as Cr 3+ :LiSrGaF 6 , Cr 3+ :BeAl 2 O 4 , Cr 3+ :GdScGa-Garnet and so on. [19][20][21] The performance of the laser system is influenced by quality of gain media.…”