A handpiece for cosmetic tissue treatment includes an input connector for connection of a first beam-outlet end of a first optical fiber to the handpiece and for alignment of the first optical fiber with an axis of the handpiece so that a first light beam emitted from the first beam-outlet end is transmitted...http://www.google.ca/patents/US6533776?utm_source=gb-gplus-sharePatent US6533776 - Apparatus for tissue treatment