Development of a laser system for combining 3 laser beams Aleksandar Lukić 20.02.2012

overview of optical components designing the system optimizing the system results

overview of optical components designing the system optimizing the system results

reflecting prisms laser diodes collimating optics

overview of optical components designing the system optimizing the system results

previous design as template

previous design as template + very accurate adjustment + good beam profile

previous design as template + very accurate adjustment + good beam profile - unmanageable internal structure - huge milling effort

targets downsizing the dimensions

targets downsizing the dimensions reduction of used components to avoid loss of output power and unnecessary expense

targets downsizing the dimensions reduction of used components to avoid loss of output power and unnecessary expense easily accessible optical components in order to save time and costs during assembly

symmetrical body (laser diodes in one line)

results + simplification of the layout + good beam profile

results + simplification of the layout + good beam profile - positioning of the reflecting prisms very difficult and sensitive - very time-consuming

asymmetrical body (laser diodes in two planes)

results + minimal number of optical component + acceptable beam quality + time- and space-saving assembly

overview of optical components designing the system optimizing the system results

compromise between output power and aesthetics to achieve good beam profile with acceptable loss of power the laser beams are cut down to 95% of initial power by the reflecting prisms

adjustment of the laser diodes operating current maximum operating current 200 mA with tolerance of 10-20% overrunning the limit by 20 mA increases the total output power up to 450 mW

adjustment of the laser diodes operating current maximum operating current 200 mA with tolerance of 10-20% overrunning the limit by 20 mA increases the total output power up to 450 mW only possible with adequate cooling system

overview of optical components designing the system optimizing the system results

suitble for series production

suitble for series production cost-optimized assembly

suitble for series production cost-optimized assembly collateral development of an appropriate laser driver unit