Design of laser divergence angle test software based on labview

Laser beam divergence angle is an important parameter to characterize laser beam quality. LABVIEW is used to build up a test platform to measure the laser beam divergence angle. The test software, which is based on principle of divergence angle measuring, regards 86.5% of the total energy as beam divergence edge measurement standard. Testing results indicate that, the test software has done well in display function and maneuverability, and the error of the measurement system is within 0.05mrad which fulfills requirements of divergence angle test.