Optical coupling device

Details Optical coupling device Optical coupling device

G - Physics

02

B

88/97.5

G02B 6/24 (2006.01) G02B 6/28 (2006.01) G02B 6/34 (2006.01)

Patent

CA 1215564

- 16 - OPTICAL COUPLING DEVICE Abstract An optical coupling device for diverting light among different transmission elements. A plurality of transmission elements are coupled to one surface of a focusing element. Positioned near the opposite surface are first and second at least partially reflecting elements. The first element 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.

430836

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