Patent ID: 9223092
Filing Date: 2015-12-29
Classification: G02B

Abstract:
1. A method comprising: providing a housing; providing a functional core disposed within the housing having a predetermined optical function and an axis with respect to the direction of optical signals coupled to the functional core; providing a first graded refractive index lens disposed within the housing; the first graded refractive index lens having a first longitudinal axis along the center of its length, a first predetermined refractive index profile perpendicular to the first longitudinal axis and a first non-circular geometry perpendicular to the first longitudinal axis, wherein the first longitudinal axis of the first graded refractive index lens is parallel to but at a first predetermined lateral offset from the axis of the functional core; providing a second graded refractive index lens disposed within the housing; the first graded refractive index lens having a second longitudinal axis along the center of its length, a second predetermined refractive index profile perpendicular to the second longitudinal axis and a second non-circular geometry perpendicular to the second longitudinal axis, wherein the second longitudinal axis of the second graded refractive index lens is parallel to but at a second predetermined lateral offset from the axis of the functional core; and assembling the first and second graded refractive index lenses within the housing such that they are orientated with respect to each other within the housing to establish a predetermined optical path for an optical signal coupled from an input of the first graded refractive index lens via and functional core to an output of the second graded refractive index lens.