Laser source monitoring assembly has a sleeve linked to a waveguide by a union fitting

摘要

A monitoring unit (1) has a housing (2) with a lens (11) a wave guide (8) and a laser source (7) within a sleeve (5). The sleeve and waveguide are linked by a union component (3) attached to the housing (2). The sleeve, laser and union can rotate about a common axis to be secured at a chosen position. The chosen polarisation is detected at the waveguide outlet.