专利检索 ap:("The Trustees of Columbia University in the City of New York") AND inv:"Moshe Zadka" 第 1 页

1.

发明授权
Densely-packed optical phased arrays via k-vector mismatch and metamaterial rods 有权

公开(公告)号：US11194223B2

公开(公告)日：2021-12-07

申请号：US16626635

申请日：2018-06-26

申请人： The Trustees of Columbia University in the City of New York

发明人： Michal Lipson , Christopher Thomas Phare , Moshe Zadka

IPC分类号： G02B6/12 , G02B6/125 , G02F1/295 , G02B6/122 , G02F1/29 , G02F1/35 , H01Q13/28

摘要： A method of forming an emitting array of waveguides, comprising providing a plurality of waveguides that exhibit different propagation constants so as to ensure that nearby waveguides do not couple evenly over parallel propagation lengths by varying a length in one or more dimensions of respective waveguides, whereby the respective waveguides are phase mismatched with at least their nearest neighbor.

2.

发明授权
Millimeter scale long grating coupler 有权

公开(公告)号：US11385410B2

公开(公告)日：2022-07-12

申请号：US16626598

申请日：2018-06-26

申请人： The Trustees of Columbia University in the City of New York

发明人： Michal Lipson , Aseema Mohanty , Christopher T. Phare , Moshe Zadka , Samantha P. Roberts , You-Chia Chang

IPC分类号： G02B6/28 , G02B6/124 , G02B6/136 , G02B6/12

摘要： A millimeter scale weak grating coupler comprising a silicon waveguide having bars of overlay material of length (a) disposed periodically at a period (∧) adjacent the silicon waveguide whereby a uniform grating output is achieved.