Methods and apparatus for optical switching using electrically movable optical fibers
View Patent ↗Methods and apparatuses for electrically controlled optical switches are presented. An electrically controlled optical switch includes a fixture formed using a laminated dielectric material, a first optical fiber having a fixed segment supported by the fixture and a movable segment extending into a cavity, a second optical fiber having a fixed segment supported by the fixture and an extended segment where an optical interconnect may be established between the first optical fiber and the second optical fiber, and a first electrical actuator functionally coupled to the fixture and the first fiber which alters a position of the moveable segment, based upon a control signal, for changing a state of the optical interconnect between one of two states.
1. A method for producing an optical switch, comprising:
providing a first substrate of deformable dielectric material;
applying a first electrode upon the first substrate;
depositing a first sacrificial material layer within an area designating a cavity over the first electrode;
placing an optical fiber along the first substrate and on top of the first sacrificial material layer;
depositing a second sacrificial material over the optical fiber and first sacrificial material;
placing a second substrate of deformable dielectric material over the second sacrificial material to produce an assembly;
laminating the assembly; and
heating the assembly to remove the first and second sacrificial material.
2. The method of claim 1 , wherein the deformable dielectric material comprises low-temperature co-fired ceramic and further comprises heating the assembly to alter the deformable dielectric material of the first and second substrates.
3. The method of claim 2 , wherein the deformable dielectric material comprises blank tape material.
4. The method of claim 1 , wherein the sacrificial material comprises carbon tape, setter tapes with an inert filler or low molecular weight plastic sheets, one or more materials selected from the group consisting of a wax, carbon, graphite, a carbon tape, a carbon-filled slurry, a porous graphite, a plasticizer, an organic binder, a plastic, a polymer, a water-soluble material, a starch, a sugar, corn starch, a material soluble in an organic solvent, a photoresist, an acrylic latex in a colloidal suspension, metal oxide particles in an organic binder, polypropylene, a photo patternable material, a polyester, a polyethylene, and a polyvinyldine dichloride.
5. The method of claim 1 , wherein removing the sacrificial material further comprises at least one of dissolving, melting, powdering, heating, baking, firing, evaporating, sublimating, pyrolysis, disassociating, burning, oxidizing, reducing, dissolving, melting, powdering, pouring out, picking out pulling out and peeling off.