Apparatus for minimizing spherical aberration of light beam emit

Details Apparatus for minimizing spherical aberration of light beam emit Apparatus for minimizing spherical aberration of light beam emit

1995-10-06

1997-06-10

Lee, John D.

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 35, G02B 632

Patent

active

056384750

ABSTRACT:
An apparatus minimizes the spherical aberration of a light beam emitted into an optical fiber from a light source such as a laser beam. The laser emits a light beam along a path of travel to an optical fiber used in a telecommunication system. A ball lens is positioned within the light beam path of travel, and has a front focal point. The laser is positioned in front of the front focal point such that the light beam emitted by the laser forms an intermediate paraxial focus point. A corrective lens is positioned adjacent the paraxial focus point so that the laser beam is introduced into an optical fiber with minimal spherical aberration and increased coupling efficiency.

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patent: 4919506 (1990-04-01), Covey
patent: 5175783 (1992-12-01), Tatoh
patent: 5301249 (1994-04-01), Hamblen et al.
patent: 5511140 (1996-04-01), Cina et al.
patent: 5537504 (1996-07-01), Cina et al.

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