Optical system to achieve enhanced coupling efficiency of a ligh

Details Optical system to achieve enhanced coupling efficiency of a ligh Optical system to achieve enhanced coupling efficiency of a ligh

1997-07-28

1999-03-16

Epps, Georgia

Optical: systems and elements

Lens

With support

385 92, 385 93, 385 61, G02B 702, G02B 638, G02B 636

Patent

active

058837485

ABSTRACT:
An optical system for coupling an output beam in an alignment direction from a semiconductor device output beam from a semiconductor device through a lens arrangement to focus the beam onto a center point of an input end surface of an optical transmission medium. The optical system includes a steering lens positioned between the semiconductor device and a focusing lens with the center of the steering lens in relative axial alignment with the output beam and may be laterally translated in a direction transverse to the axial direction of said beam for initially aligning the focused point of said beam in close proximity to said center point. Moreover, the steering lens may be rotated about either or both axis of rotation in a plane transverse to the axial direction of the output beam to further translate the angle of output beam onto the center point of the input end the optical transmission medium for precise alignment of the focused point of the beam as well as obtain maximum coupling efficiency of the beam into the medium.

REFERENCES:
patent: 3551029 (1970-12-01), Kirchhoff
patent: 4273410 (1981-06-01), Menke
patent: 4932732 (1990-06-01), Nakajima
patent: 5351330 (1994-09-01), Jongewaard
patent: 5500911 (1996-03-01), Roff
patent: 5515206 (1996-05-01), Peng
patent: 5528416 (1996-06-01), Hartmann
patent: 5745621 (1998-04-01), Musk

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