The spectral measurement of a high repetition rate tunable dye laser output using Fabry-Perot fringe

We present the measurement of spectral distribution of a high repetition rate dye laser by deriving explicit relationship of the parameters with ring diameter of the Fabry-Perot fringe pattern. The output characteristics and its variation has been represented by generating a composite picture of a single line scan across the ring diameter of the Fabry-Perot fringe, captured through CCD camera and frame grabber card.