Stacked thermo-optic switch, switch matrix and add-drop multiple

Details Stacked thermo-optic switch, switch matrix and add-drop multiple Stacked thermo-optic switch, switch matrix and add-drop multiple

1998-09-25

2000-09-19

Healy, Brian

Optical waveguides

With optical coupler

Switch

385 15, 385 17, 385 24, 385 40, 385 41, 385 42, 385 14, 385131, 385132, 359115, 359124, 359127, 359128, G02B 626, H04J 1400

Patent

active

061224162

ABSTRACT:
Cores of an optical waveguide forming a Y-branch structured thermo-optic switch are stacked in a direction perpendicular to a substrate, and a heater is disposed on a clad right above an area where the cores overlap, thereby utilizing a large temperature gradient by the heater in the direction perpendicular to the substrate. The resulting stacked thermo-optic switch is low in power consumption and signal loss and high in extinction ratio.

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