公开(公告)号：US20180246389A1

公开(公告)日：2018-08-30

申请号：US15679691

申请日：2017-08-17

Applicant: STMicroelectronics SA

Inventor： Valerie Danelon ,  Denis Pache ,  Christophe Arricastres

IPC: G02F1/225 ,  G02F1/025 ,  G02B6/293

CPC classification number: G02F1/225 ,  G02B6/29338 ,  G02F1/025 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2203/15

Abstract: A Mach-Zehnder ring modulator includes a first optical path having a first diode and a optical path having a second diode. Each of the first and second diodes operates responsive to a voltage signal by modifying a phase of a light signal. A first optical coupler provides first and second light signals to the first and second optical paths, respectively. A second optical coupler couples outputs from the first and second optical paths. A feedback path is coupled between an output of the second optical coupler and an input of the first optical coupler.

公开(公告)号：US20180152180A1

公开(公告)日：2018-05-31

申请号：US15605541

申请日：2017-05-25

Applicant: STMicroelectronics SA

Inventor： Denis Pache ,  Stephane Le Tual ,  Hanae Zegmout

IPC: H03K3/42 ,  H03K3/36 ,  H01L31/08

CPC classification number: H03K3/42 ,  G06F1/105 ,  H01L31/08 ,  H03K3/36 ,  H03M1/1255

Abstract: The present disclosure relates to a device for generating a clock signal including a first photoresistor coupling a capacitive output node to a node receiving a first potential. A second photoresistor couples the capacitive node to a node receiving a second potential. The first and second photoresistors receive the same optical pulses of a mode-locked laser at instants in time offset by a first delay.