Apparatus for continuous monitoring of laser light comprises working and test light sources generating different wavelength light

摘要

Apparatus comprises working (2) and test (6) light sources, with the latter generating different wavelength light to that of the working light source. Both light sources are coupled to the near end (p) of the fiber optic cable (1). Light (12) is reflected back from the target optics (3) or sample (9) and is then amplified and analyzed in an electronic capture and analysis device (70).