公开(公告)号：US20170212403A1

公开(公告)日：2017-07-27

申请号：US15483553

申请日：2017-04-10

Applicant: Lumentum Operations LLC

Inventor： Charles M. JEWART ,  Yannick LIZE ,  Karl KISSA

IPC: G02F1/225 ,  G02B6/125 ,  G02B6/28

CPC classification number: G02F1/2257 ,  G02B6/00 ,  G02B6/125 ,  G02B6/28 ,  G02B6/2813 ,  G02F1/225 ,  G02F2001/212 ,  G02F2001/217 ,  G02F2201/58

Abstract: An optical modulator is disclosed, in which a MMI couplers are used for input signal splitting for branching into individual Mach-Zehnder interferometers, as well as for branching and combining from individual Mach-Zehnder waveguides. MMI couplers, splitters, and combiners may be cascaded and combined with single-mode Y-splitters and combiners to provide modulators of various types, including dual polarization, quadrature phase Mach-Zehnder interferometer base optical modulators.