An optical coupler for coupling energy from a laser diode bar is disclosed. The coupler includes multiple rectangular optical fibers that each have a cylindrical lens which is an integral part of each fiber end. The fiber ends are held in a fixed spatial relationship by a retainer. In one coupler embodiment,...http://www.google.fr/patents/US5629997?utm_source=gb-gplus-shareBrevet US5629997 - Method and apparatus for coupling laser diode beams to optical fibers and achieving high power densities
Method and apparatus for coupling laser diode beams to optical fibers and ...
