Optical beam generating and shaping device

Details Optical beam generating and shaping device Optical beam generating and shaping device

2005-11-15

2005-11-15

Lee, John R. (Department: 2881)

Optical waveguides

With optical coupler

Input/output coupler

C385S032000, C385S033000

Reexamination Certificate

active

06965713

ABSTRACT:
A beam generating and shaping device, for use in a free-space optical communication system provides increased uniformity in the distribution of optical radiation power, both at the output of the device and the aperture of the receiving terminal. A source provides optical radiation bearing communication information, and an optical coupler introduces radiation from the source into a multimode optical fiber, for example at an inclined angle, so as to launch a number of modes within the fiber. A mode mixer engages a portion of the multimode optical fiber. An exemplary mode mixer consists essentially of a single clamp, providing micro-bending of the fiber. An optical antenna is coupled to the cross-section formed by the distal end of the multimode optical fiber, for example, via an auxiliary lens to provide increase in output radiation beam divergence. The telescope transmits radiation emitted from the distal end of the multimode optical fiber over a free-space optical link towards the receive aperture.

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Dominion Lasercom Inc. advertising brochure, Digital Audio Digital Infrared Data (David), 2002, 2 pages.

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