Integrated optic switch

Details Integrated optic switch Integrated optic switch

1986-03-25

1988-07-26

Wan, Gene

350 9614, 350 9617, G02B 610

Patent

active

047595957

ABSTRACT:
A single-mode electro-optic switch (10 or 10') including a graded index layer (14b or 14b'). Two electro-optic embodiments are disclosed. The first embodiment includes a substrate (12) and a planar waveguide (14) atop the substrate (12) including a graded index layer (14b) sandwiched between a pair of lower refractive index layers (14a and b 14c). The substrate (12) preferably forms anisotropically etched V-grooves (38) suitable for receiving fibers (50) and (52) and for registering the cores of the fibers with the middle layer (14b). The first embodiment of the switch includes a single input port and a pair of output ports, wherein when the switch is energized, light is reflected away from the first output port and toward the second output port. The second embodiment (10') includes a pair of input ports and a pair of output ports, wherein energization of the switch couples a pair of substantially parallel waveguides together such that light entering one of the input ports is at least partially directed toward the opposite output port.

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