Rayleigh Range Fixture Option for BeamScan (RAL-FXT)

Photon inc's Rayleigh Range Translation Test Fixture (RAL-FXT) provides convenient translation of a BeamScan head assembly and a digital read-out of its relative position along the beam axis. Used with a focusing lens (user provided) and a routine of the BAS-WIN software package, this fixture offers a quick and easy method to determine the times diffraction propagation factor (M2 or k) of a laser.