公开(公告)号：US20170070297A1

公开(公告)日：2017-03-09

申请号：US15230384

申请日：2016-08-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yong-sang Park ,  Hyun-il BYUN

IPC: H04B10/516

CPC classification number: H04B10/516 ,  G02F1/0121 ,  G02F1/225 ,  G02F1/2257 ,  G02F2001/217 ,  G02F2201/58 ,  G02F2203/20 ,  H04B10/505 ,  H04B10/50572

Abstract: An optical modulator includes an optical splitter splitting input optical signals into a first optical signal and a second optical signal and transmitting the first optical signal and the second optical signal to a first optical waveguide and a second optical waveguide, respectively, an optical combiner generating an output optical signal by combining the first and second optical signals transmitted from the first and second optical waveguides respectively, and including three output ports including a main output port, a first auxiliary output port, and a second auxiliary output port, three output optical waveguides connected to the three output ports, respectively, and transmitting the output optical signal, and an optical detector connected to at least one of the three output optical waveguides.

Abstract translation: 光调制器包括光分路器，将输入光信号分成第一光信号和第二光信号，并将第一光信号和第二光信号分别传输到第一光波导和第二光波导， 通过组合从第一和第二光波导发送的第一和第二光信号，并且包括三个输出端口，包括主输出端口，第一辅助输出端口和第二辅助输出端口输出光信号，三个输出光波导连接 分别传送到三个输出端口，并传输输出光信号;以及光检测器，连接到三个输出光波导中的至少一个。

公开(公告)号：US20180175501A1

公开(公告)日：2018-06-21

申请号：US15609291

申请日：2017-05-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-il BYUN ,  Dong-jae SHIN

IPC: H01Q3/26 ,  G02F1/29 ,  G02B6/28

CPC classification number: H01Q3/2676 ,  G02B6/2813 ,  G02F1/292

Abstract: A beam steering optical phased array (OPA) may include an optical signal distributor including a plurality of output terminals configured to divide and output input optical signals and phase shifters arranged at the plurality of output terminals and configured to receive the divided optical signals and shift phases thereof to generate phase-shifted optical signals. The beam steering OPA may include antennas configured to receive the phase-shifted optical signals and an optical signal interferometer. The optical signal interferometer may include first input waveguide regions connected to a limited selection of the antennas and extending in a first direction, a multi-mode waveguide region connected to the first input waveguide regions, and a first output waveguide region connected to the multi-mode waveguide region and extending in the first direction. The beam OPA may enable errors due to process dispersion to be effectively corrected, and thus, the beam steering OPA may have enhanced reliability.