Patent
1986-04-14
1988-09-20
Sikes, William L.
350 9612, 350 9613, 350 9614, G02B 626, G02B 642
Patent
active
047720840
ABSTRACT:
A 3.times.3 optical guiding arrangement is disclosed for providing both power splitting between a pair of output guides in the 3.times.3 guide structure and polarization splitting (into the TE and TM modes) between the central guide and the pair of outer guides. In accordance with the present invention, the mutual coupling length L and separation distance d between adjacent guides are chosen to provide the desired polarization splitting and total intensity (power) in the outer guides. For example, an input signal of intensity I comprising both the TE and TM modes may be launched in the center guide and with correct choices for L and d, will result in output signals of I.sub.TM /2 each of the outer pair of guides and I.sub.TE from the central guide.
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American Telephone and Telegraph Company AT&T Bell Laboratories
Koba Wendy W.
Sikes William L.
Wise Robert E.
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