公开(公告)号：US20170288781A1

公开(公告)日：2017-10-05

申请号：US15083616

申请日：2016-03-29

Applicant: STMicroelectronics (Crolles 2) SAS ,  STMicroelectronics SA

Inventor： Jean-Francois Carpentier ,  Patrick Lemaitre ,  Jean-Robert Manouvrier ,  Denis Pache ,  Stephane Le Tual

IPC: H04B10/516 ,  H04L25/49

CPC classification number: H04B10/541 ,  G02F1/0121 ,  G02F1/2257 ,  H04B10/505 ,  H04L25/4917

Abstract: An optical modulator includes an optical waveguide including at least a first PN junction phase shifter and a second PN junction phase shifter. A driver circuit drives operation of the first and second PN junction phase shifters in response to a pulse amplitude modulated (PAM) analog signal having 2n levels. The PAM analog signal is generated by a digital to analog converter that receives an n-bit input signal. In an implementation, the optical waveguide and PN junction phase shifters are formed on a first integrated circuit chip and the driver circuit is formed on a second integrated circuit chip that is stacked on and electrically connected to the first integrated circuit chip.

公开(公告)号：US20170003571A1

公开(公告)日：2017-01-05

申请号：US15068704

申请日：2016-03-14

Applicant: STMicroelectronics (Crolles 2) SAS ,  STMicroelectronics SA

Inventor： Jean-Francois Carpentier ,  Patrick LeMaitre ,  Denis Pache

IPC: G02F1/225 ,  G02F1/025 ,  G02F1/01

CPC classification number: G02F1/2255 ,  G02F1/0123 ,  G02F1/025 ,  G02F1/2257 ,  G02F2001/212

Abstract: An integrated modulator of the Mach-Zehnder type includes two optical arms containing waveguides with PN junctions and biasing circuits for reverse biasing the PN junctions in response to a control signal. The two optical arms are situated within a semiconductor substrate of a first element that also has an interconnection region. The biasing circuits are situated, in part, within a substrate of a second element that also contains an interconnection region. The first and second elements are rigidly attached to each other via their respective interconnection regions.

Abstract translation: Mach-Zehnder型集成调制器包括两个含有PN结的波导的光学臂和用于响应控制信号反向偏置PN结的偏置电路。 两个光学臂位于也具有互连区域的第一元件的半导体衬底内。 偏置电路部分地位于也包含互连区域的第二元件的衬底内。 第一和第二元件通过其相应的互连区域彼此刚性连接。