Patent ID: 6707965
Filing Date: 2004-03-16
Classification: G02B

Abstract:
A fiber collimator unit, comprising:a first focusing element having an optical axis and a first focal length; a first optical fiber optically coupled to a first side of the first focusing element, the first optical fiber being disposed at a first transverse distance from the optical axis so that light from the first optical fiber propagates on a second side of the first focusing element as a substantially collimated beam at a first angle to the optical axis; a first polarization rotator disposed on the second side of the first focusing element, the first polarization rotator deviating the polarization state of the substantially collimated beam; and an optical element, wherein the optical element substantially redirects light at a first pre-determined polarization state and substantially transmits light at a second pre-determined polarization state orthogonal to the first polarization state.