Optical switching element

Details Optical switching element Optical switching element

2008-07-22

2008-07-22

Peng, Charlie (Department: 2883)

Optical waveguides

With optical coupler

Switch

C385S008000, C385S040000, C385S129000

Reexamination Certificate

active

07403678

ABSTRACT:
An optical switching element comprising: a multimode waveguide having an electro-optical effect; one or a plurality of first single mode waveguides; a plurality of second single mode waveguides; a first electrode arranged in the vicinity of one edge on one side of the multimode waveguide; a second electrode arranged in the vicinity of the other edge on the same side of the multimode waveguide; and a third electrode arranged on the other side of the multimode waveguide, over the first electrode and the second electrode being arranged so as to be positioned on bright spots formed by multimode interference in an optical mode field generated by the light propagating through the multimode waveguide, and an optical path being switched between the first single mode waveguide and the second single mode waveguide by applying voltage between the first electrode and the third electrode and between the second electrode and the third electrode, is provided.

REFERENCES:
patent: 4127320 (1978-11-01), Li
patent: 2005/0175281 (2005-08-01), Thapliya et al.
patent: 2006/0268395 (2006-11-01), Steckl et al.
patent: A 11-84434 (1999-03-01), None

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