Patent ID: 6031953
Filing Date: 2000-02-29
Classification: G02B

Abstract:
A coupling system for enhancing the coupling of light between a laser diode and an optical fiber, comprising:a laser diode having an emitting surface for generating an asymmetric beam;an optical fiber having an input end and a delivery end with the input end including:a beveled end surface disposed at an oblique angle with respect to a longitudinal axis of the optical fiber, anda light input side surface opposing the beveled end surface and aligned with the emitting surface of the laser diode to capture the beam emitted therefrom,wherein the angle of the beveled surface is selected such that the beam entering the input side surface from the laser diode is reflected by the beveled surface along the longitudinal axis of the fiber; and a first microlens mounted on the input side surface of the fiber in a manner to have optical continuity therewith for focusing light into the fiber.