Intel Corporation

Chi D Chu

Mario J Paniccia

Ansheng Liu

Dean Samara-Rubio

Lei Feng

Ram Sadhwani

A switchable transformer architecture is disclosed. The switchable transformer includes a primary winding, a secondary winding, and a tertiary winding, in which either the secondary winding or the tertiary winding establish a signal path to the primary winding, based on the position of switches, enabling transmission to either of two blocks sharing the transformer. The transformer architecture achieves high isolation between sharing blocks and low loss on the signal path.

Switchable transformer with embedded switches inside the windings

An optical switching method and apparatus. In one aspect of the present invention, the disclosed apparatus includes first and second multi-mode interference (MMI) splitting devices in a semiconductor substrate. First and second outputs of the first MMI splitting device are optically coupled to first and second inputs, respectively, of the second MMI splitting device. First and second phase control devices are included in the semiconductor substrate. The first input of the second MMI splitting device is optically coupled to the first output of the first MMI splitting device through the first phase control device. The second input of the second MMI splitting device is optically coupled to the second output of the first MMI splitting device through the second phase control device. The first input of the first MMI splitting device is selectively optically coupled to the first and second outputs of the second MMI splitting device in response to the first and second phase control devices. The second input of the first MMI splitting device is selectively optically coupled to the first and second outputs of the second MMI splitting device in response to the first and second phase control devices.

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Hillsboro, OR, United States of America

Chi D Chu