Results 51 to 60 of about 4,667 (157)

Review of Photonic Integrated Optical Phased Arrays for Space Optical Communication

IEEE Access, 2020
A review of photonic integrated optical phased array (OPA) for space optical communication is presented. We review and summarize the typical works of the photonic integrated OPAs with one-dimensional and two-dimensional optical antenna array in recent ...
Jingwen He, Tao Dong, Yue Xu
doaj   +1 more source

Implantable silicon neural probes with nanophotonic phased arrays for single-lobe beam steering

Communications Engineering
In brain activity mapping with optogenetics, patterned illumination is crucial for targeted neural stimulation. However, due to optical scattering in brain tissue, light-emitting implants are needed to bring patterned illumination to deep brain regions ...
Fu-Der Chen, Ankita Sharma, Tianyuan Xue, Youngho Jung, Alperen Govdeli, Jason C. C. Mak, Homeira Moradi Chameh, Mandana Movahed, Michael G. K. Brunk, Xianshu Luo, Hongyao Chua, Patrick Guo-Qiang Lo, Taufik A. Valiante, Wesley D. Sacher, Joyce K. S. Poon   +14 more
doaj   +1 more source

Photonic Integrated Circuits for an Optical Phased Array

Photonics
Optical phased arrays (OPAs) are renowned for their exceptional ability to manipulate and direct light beams, positioning them as an ideal choice for solid-state light detection and ranging (LiDAR) technologies.
Yasha Yi, Dachuan Wu, Venus Kakdarvishi, Bowen Yu, Yating Zhuang, Alireza Khalilian   +5 more
doaj   +1 more source

Hybrid-Integrated Multi-Lines Optical-Phased-Array Chip

Photonics
We propose a hybrid-integrated III–V-silicon optical-phased-array (OPA) based on passive alignment flip–chip bonding technology and provide new solutions for LiDAR.
Shengmin Zhou, Mingjin Wang, Jingxuan Chen, Zhaozheng Yi, Jiahao Si, Wanhua Zheng   +5 more
doaj   +1 more source

N × N optical phased array with 2N phase shifters

Optics Express, 2019
Two-dimensional (2-D) integrated optical phased arrays (OPA) have many applications from optical imaging to LiDAR. Conventionally, 2-D beam-steering in an N × N OPA requires N2 phase shifters placed within the phased array aperture, resulting in a high per-element power consumption while limiting the minimum achievable element-to-element spacing.
Farshid Ashtiani, Firooz Aflatouni
openaire   +2 more sources

Optical phased array using phase-controlled optical frequency comb

We developed an optical phased array using an optical frequency comb and demonstrated its proof-of-principle. Optical phased arrays have been actively developed in recent years as a technology that can control the wavefront of light without any mechanical devices like phased array radar.
Kato, Takashi, Minoshima, Kaoru
openaire   +2 more sources

Design of a Ka-band Wideband Multibeam Phased Array

Guangtongxin yanjiu
【Objective】The world has entered the era of 5th Generation Mobile Communication Technology (5G) and satellite Internet, and the demand for communication speed and capacity in various fields has surged, while the application of traditional parabolic and ...
GUAN Jin, SUN Jie, XING Chen, LIAO Yi, LI Yi   +4 more
doaj  

Silicon Optical Phased Array Hybrid Integrated with III–V Laser for Grating Lobe-Free Beam Steering

Photonics
A silicon photonics-based optical phased array (OPA) is promising for realizing solid-state and miniature beam steering. In our work, a 1 × 16 silicon optical phased array (OPA) hybrid integrated with a III–V laser is proposed and demonstrated. The III–V
Jingye Chen, Shi Zhao, Wenlei Li, Xiaobin Wang, Xiang’e Han, Yaocheng Shi   +5 more
doaj   +1 more source

Progress and prospects for LiDAR-oriented optical phased arrays based on photonic integrated circuits

npj Nanophotonics
Chip-scale LiDARs hold promise for high volume, low cost, and compact footprint. A key candidate is based on the adoption of phased array beam-forming and beam-steering in the optical domain, hence the optical phased array (OPA).
Weihan Xu, Qiqi Yuan, Yunhong Yang, Liangjun Lu, Jianping Chen, Linjie Zhou   +5 more
doaj   +1 more source

Cascaded domain engineering optical phased array for 2D beam steering. [PDF]

Nanophotonics, 2023
Li J, Zheng H, He Y, Liu Y, Wei X, Xu Z.
europepmc   +1 more source