Optical coupling device

Details Optical coupling device Optical coupling device

1982-07-07

1984-12-04

Sikes, William L.

350 9616, 350 9620, G02B 514

Patent

active

044860714

ABSTRACT:
An optical coupling device for diverting light among different transmission elements. A plurality of transmission elements (11, 12, 13) are coupled to one surface (32) of a focusing element (10). Positioned near the opposite surface (32) are first and second at least partially reflecting elements (15 and 16). The first element (15) may be affixed to the end surface of the focusing element and covers only a portion thereof. The second element is positioned further from the end surface and at an angle to the first element. The area of the first element is chosen to produce a desired splitting ratio, and the angle between elements can be adjusted to maximize coupling efficiency between the transmission elements. The device can be used, for example, as a three port coupler, an asymmetric four port coupler, or a four port power divider.

REFERENCES:
patent: 4208094 (1980-06-01), Tomlinson et al.
patent: 4213677 (1980-07-01), Sugimoto et al.
patent: 4239330 (1980-12-01), Ashkin et al.
patent: 4304460 (1981-12-01), Tanaka et al.
patent: 4355864 (1982-10-01), Soref
patent: 4362359 (1982-12-01), Dammann et al.
patent: 4381137 (1983-04-01), Berg et al.
U.S. Patent Application of Levinson and Schweizer, Ser. No. 373,135, filed Apr. 29, 1982, and assigned to BTL, as discussed in the specification.

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