MICRO Laser Systems has introduced the FC10 and FC20 angled fibre collimators, suitable for interferometry, long-distance sensors, free-space communications, and alignment of large objects. They are available from Warsash Scientific .
The FC10 and FC20 angled fibre collimators have 10mm and 20mm apertures respectively and are available from 400nm to 1700nm.
Mechanical and optical alignment yields a beam that is centred with user-adjustable focus and that has a clean Gaussian profile with <l/10 wavefront error. The beam remains Gaussian all along the path and at any distance, resulting in a spot size that measures from hundreds of meters to several kilometres.