Beam Propagation Analyzer

The M₂-200 provides automated analysis of M₂, k, divergence angle, and Rayleigh Range length, as well as astigmatism and asymmetry information for pulsed and CW lasers. As an accessory to the company's LBA-PC line of PC based laser beam analyzers, the M₂-200 offers a convenient, accurate, and extremely repeatable method of measuring these important laser parameters, according to the company.

This M₂ accessory allows for the analysis of the laser beam propagation by utilizing the approved ISO method. As dictated by this method, the M₂-200 automatically translates the camera through the waist region of the laser beam under test by precisely translating a set of mirrors. This generates a series of X and Y beam width measurements along the path of the focused beam. From the hyperbola that is fit to these data points, the M₂ value for each laser's propagational axis, as well as divergence angle, waist location, waist width, and Rayleigh Range are measured and displayed.

The automated version comes as an accessory to the 8, 10, and 12-bit versions of the LBA-PC beam profiler. A manual version is also available for UV and far infrared lasers. The manual version includes M₂ analysis software and a PCI framegrabber card with Windows compatible software that automates the task of data collection, curve fitting, and calculations.

Spiricon, 2600 North Main St., Logan, UT 84341 Phone: 435-753-3729; Fax: 435-753-5231