Figure 1
From: Randomly polarised beam produced by magnetooptically Q-switched laser

Diode-pumped magnetooptical (MO) Q-switched laser. (a) Schematic of laser cavity setup. The rare-earth substituted iron garnet (RIG) film was sandwiched by a pair of coils and its magnetisation was modulated by a pulsed field. The minimum cavity length L was 10 mm. (b) Beam diameter (thick orange line) estimated using ABCD matrix method and refractive indexes (thin blue line) in cavity.