Patent
1988-06-20
1989-08-22
Sikes, William L.
350 9612, 350 9614, 350375, 350376, 350377, G02B 610
Patent
active
048590142
ABSTRACT:
The invention relates to a non-reciprocal optical element, particularly for use an an isolator or circulator, which is connected to at least two monomode optical waveguides and which has a magneto-optical waveguide structure which is subjected to a transversal magnetic field directed perpendicularly to the direction of propagation of the optical wave. This arrangement is simplified by combining the functions of the coupler and the phase shifter, which is achieved by means of the following features:
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"Applied Optics", vol. 23, 1984, pp. 1886-1889.
Dammann Hans O. B.
Schmitt Hans-Jurgen
Botjer William L.
Healy Brian M.
Sikes William L.
U.S. Philips Corp.
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