公开(公告)号：US12019350B2

公开(公告)日：2024-06-25

申请号：US17561071

申请日：2021-12-23

申请人： NOKIA SOLUTIONS AND NETWORKS OY

发明人： Juthika Basak ,  Douglas Gill ,  Asres Seyoum ,  Matthew Streshinsky

IPC分类号： G02F1/225 ,  G02F1/21

CPC分类号： G02F1/2255 ,  G02F1/212

摘要： An electro-optic device, such as an optical modulator, comprises: a driver for generating a plurality of identical time-synchronized copies of an input electrical signal, and a photonic integrated circuit, including an optical waveguide structure and a plurality of phase-modulating electro-optical modulator segments. Each one of the modulator segments configured to receive a respective one of the plurality of the copies of the input electrical signal. Instead of incorporating a required phase delay between the copies of the input electrical signal into the driver structure, a multi-layer interconnect substrate is provided that includes a plurality of insulating layers alternating with a plurality of conductive layers. The plurality of conductive layers are configured to include a plurality of delay lines, each one of the plurality of delay lines electrically coupled in between the driver and the photonic integrated circuit configured to transmit a respective one of the plurality of copies of the first input electrical signal.