Shaping semiconductor laser beam with one-dimension gradient-index lens

Abstract

This paper's main purpose is collimating shaping and coupling semi-conductor laser beam by one-dimension gradient-index lens with parabolic-index profiles along the direction of thickness has been fabricated by ion-exchanging process. Introduced the ray matrix equation of One-dimension gradient-index lens and formation process of parabolicindex profiles. Measured distribution constant of refraction A in varied thickness.Using onedimension gradient-index lens with varied thickness replacing cylindrical lens collimating shaping and coupling semi-conductor laser beam. Using two perpendicular one-dimension gradient-index lens shaping laser beam by two direction.Maked a mini and new semiconductor laser coupler.Demonstrated a coupling efficiency of 80% which from semi-conductor laser beam into single-mode fiber. © 2006 IOP Publishing Ltd.