Abstract: A laser system (100) produces at least one laser beam (204) that is output from the laser system. The laser system includes a safety device (124) that terminates the output of the laser beam from the laser system. The termination occurs upon the laser beam interacting with a predetermined reflective surface (202) to change a characteristic thereof, thus indicating of a fault condition where the laser beam may cause damage to a human eye, for example. The safety device (124) may be reflective in the path of the laser beam(s) from source to output, and the reflective surface (202) melts or ablates upon the fault condition, thus interrupting the path and preventing laser output. In addition, the safety device (124), upon the fault condition, may produce or trigger a control signal (126) to turn off the laser sources (110). A sensor (620) may be located behind the predetermined surface (202) to indicate the fault condition upon ablation and/or melting of the predetermined surface (202).