Modulation transfer function measurement method for fiber optic imaging bundles

In this study a method is presented for measuring the modulation transfer function of line-array fiber optic image bundles. The measurements are performed using a designed experimental setup containing a tunable V-shape spatial filter, using three frequencies at one third of Nyquist frequency, two thirds of Nyquist frequency, and Nyquist frequency, respectively. Comparing the measured MTF curve of the fiber optic image bundles with the theoretically computed MTF curve, we have obtained good agreement.