External modulator for optical communication

Details External modulator for optical communication External modulator for optical communication

G - Physics

02

F

G02F 1/11 (2006.01) G02F 1/01 (2006.01) H04B 10/04 (2006.01) H04B 10/12 (2006.01)

Patent

CA 2112480

- 43 - ABSTRACT In an external modulator for optical communication, a piezoelectric element section is formed by laminating a lower electrode, piezoelectric thin film and upper electrode in this order on one surface of a substrate which has substantially the same acoustic impedance as the clad layer of a single mode optical fiber to be disposed, at least one single mode optical fiber is disposed on the other surface of the substrate or the upper electrode, and the single mode optical fiber is at least partly coated with a material having an acoustic impedance substantially equal to that of the clad layer in a place in which the single mode optical fiber is disposed.

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