Laser beam analysis apparatus

An apparatus that enables analysis of high power laser beams, comprising:

• a Fabry-Perot resonator that includes a thin, high reflecting mirror plate disposed at a predetermined angle of incidence to a laser beam;
• said high reflecting mirror plate including a first surface that faces a source of said laser beam, said first surface having a highly reflective non-absorbing coating that transmits less than one percent (1%) of light from said laser beam;
• said high reflecting mirror plate including a second surface that faces away from said source, said second surface having a highly reflective non-absorbing coating that transmits less than one percent (1%) of light from said laser beam;
• a first beam dump positioned out of a path of travel of said laser beam and in receiving relation to light reflected by said high reflecting mirror plate;
• and
• a first camera for detecting spots of light that pass through said high reflecting mirror plate;
• whereby said laser beam is substantially attenuated so that it can be analyzed by said first camera.