Safety system for glazing, comprising: a glazing arrangement having a safety function having a planar glazing element; and an optical waveguide structure having an optical filter element; the optical waveguide structure being mechanically arranged on the glazing element so as to cause a change in an optical property of the optical waveguide structure when the planar glazing element is subject to mechanical stress, and so as to further cause a change in an optical property of the optical waveguide structure when the planar glazing element is subject to thermal stress, the optical filter element comprising a Bragg filter or a plurality of Bragg filters; signal coupling means for coupling an optical signal (S 1) into the optical waveguide structure; signal detecting means for detecting an optical signal (S R; S Tr) of the optical waveguide structure and for emitting an electric detection signal (S e) on the basis of the detected optical signal (S R, S Tr); and processing means for controlling the signal coupling means and for evaluating the detection signal provided by the signal detecting means, the processing means being configured to determine a change in the optical property of the optical waveguide structure (30, 32) that is due to a mechanical stress of the planar glazing element, and to further determine a change in the optical property of the optical waveguide structure (30, 32) that is due to a thermal stress of the planar glazing element, and further being configured to distinguish between the change in the optical property of the optical waveguide structure (30, 32) that is due to a mechanical stress and the change in the optical property of the optical waveguide structure (30, 32) that is due to a thermal stress; and the processing means further being configured to evaluate the detection signal (S e) in terms of whether the optical property of the optical waveguide structure in the form of the respective central wavelength λ B of the Bragg filter concerned changes steadily or continuously so as to determine a thermal load, and the processing means further being configured to evaluate the detection signal (S e) in terms of whether the optical property of the optical waveguide structure in the form of the respective central wavelength λ B of the Bragg filter concerned changes abruptly or erratically so as to determine a mechanical load. a glazing arrangement having a safety function having a planar glazing element; and an optical waveguide structure having an optical filter element; the optical waveguide structure being mechanically arranged on the glazing element so as to cause a change in an optical property of the optical waveguide structure when the planar glazing element is subject to mechanical stress, and so as to further cause a change in an optical property of the optical waveguide structure when the planar glazing element is subject to thermal stress, the optical filter element comprising a Bragg filter or a plurality of Bragg filters; signal coupling means for coupling an optical signal (S 1) into the optical waveguide structure; signal detecting means for detecting an optical signal (S R; S Tr) of the optical waveguide structure and for emitting an electric detection signal (S e) on the basis of the detected optical signal (S R, S Tr); and processing means for controlling the signal coupling means and for evaluating the detection signal provided by the signal detecting means, the processing means being configured to determine a change in the optical property of the optical waveguide structure (30, 32) that is due to a mechanical stress of the planar glazing element, and to further determine a change in the optical property of the optical waveguide structure (30, 32) that is due to a thermal stress of the planar glazing element, and further being configured to distinguish between the change in the optical property of the optical waveguide structure (30, 32) that is due to a mechanical stress and the change in the optical property of the optical waveguide structure (30, 32) that is due to a thermal stress; and the processing means further being configured to evaluate the detection signal (S e) in terms of whether the optical property of the optical waveguide structure in the form of the respective central wavelength λ B of the Bragg filter concerned changes steadily or continuously so as to determine a thermal load, and the processing means further being configured to evaluate the detection signal (S e) in terms of whether the optical property of the optical waveguide structure in the form of the respective central wavelength λ B of the Bragg filter concerned changes abruptly or erratically so as to determine a mechanical load.