The output coupler usually has reflectance in the range 40% to 70%. In order to optimise power and spatial profile of the laser beam, the output coupler and end mirror have optical surfaces with well-defined radii of curvature. The output coupler is typically composed of ZnSe in order to minimise absorption and thermal distortion while transmitting a high-power laser beam.
The end mirror usually has reflectance 99.5% which means that the transmitted laser beam has low power. However, because absorption in the coating is higher than in the output coupler, substrate materials, such as Germanium or Gallium Arsenide, with high thermal conductivity are used in most lasers.
Laser Resources was founded in 1992 to promote the use of laser technology and related products for industry in Australia and New Zealand, using the best available sources of technology from Europe. The Laser Resources Team aims to cooperatively develop and implement the use of laser technologies in industry to help customers take advantage of the benefits of laser material processing. Laser Resources offers complete service and support including factory trained technicians, for each of the products it sells. Laser Resources also welcomes customer enquiries for service, support and application assistance for all laser related systems.
Additionally, Laser Resources offers products from the following companies. Robot Technology – Robot based laser cutting, both stand alone robots and complete robot cells. Precitec - Process heads for Cutting and monitoring units, Welding heads with seam tracking and process monitoring and gluing process monitoring. DILAS - Diode components, arrays and complete fibre coupled units. LaserVision - Safety glasses to meet ANZS 1337.4 plus safety glass, curtains and Laser safety training software.