Figure 4
From: Randomly polarised beam produced by magnetooptically Q-switched laser
Polarisation state. Output polarisation of Q-switched laser analysed using quarter-wave (λ/4) plate and analyser. The ideal linearly polarised state is indicated by the black dashed line. Without the λ/4 plate, the transmitted power showed no dependency on the analyser angle (solid black line). The polarisation state using the λ/4 plate is plotted by the bold orange line. The polarisation state remained constant with rotation of the λ/4 plate, indicating that the output pulse was not circularly but randomly polarised.
