This module provides the laser light source consisting of a temperature controlled laser diode. The maximum output power is 500 mW at 20°C. The laser module is fixed into an adjustment holder (
474 211) which is attached to a carrier to place the module onto the optical rail. By means of a Peltier’s element the temperature of the laser diode can be changed in a range from 15 to 40°C. To control the injection current as well the temperature the diode laser head is connected to the controller (
474 302). The four precision fine pitch screws are used to align the optical axis of the diode laser with respect to the mechanical axis of the set-up.