Corning O.t.i. Spa

G.d S.p.a.

Stefano Donati

Luca Testoni

Salvatore Morasca

Steffen Schmid

Daniele Grosso

Davide Marsili

Giada Magherini

A double-passage acousto-optical device including an acousto-optical switch having a first polarization conversion region connected between first input and output ports, and a second conversion region connected between second input and output ports; and an optical combination connected between the first output port and the second input port via optical fibers and including an optical isolating element. The double-passage acousto-optical device may alternately include an acousto-optical switch including a single polarization conversion region connected between first input and output ports and also connected between second input and output ports. A bandpass filter, a notch filter, and add/drop and a tunable laser generator may be formed using the acousto-optical device.

Double-passage acousto-optical device and laser

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Verghera, Italy

Stefano Donati