Glass-crystal material for passive Q-factor modulation of IR lasers

Description

Polycrystalline material based on nanoscale spinel crystals activated by Co2+ ions.

Glass-crystal material for passive Q-factor modulation of lasers, which is not inferior in characteristics to passive gates based on expensive single crystals of alumomagnesium spinel. Durability in operation. High uniformity, high mechanical strength, stability of laser output power. The sizes are practically unlimited.

Field of application

  • Passive shutters for lasers operating in the eye-safe spectral region

Characteristics

Characteristic Value
Working wavelength 1.3–1.6 mkm
Absorption cross section from the ground state for the working wavelength 0.2–0.4 × 1018 cm2
Relaxation time of the excited state 100–1000 ns
Energy in a pulse 5–10 mJ