Title:
マルチモード干渉導波路型スイッチ
Document Type and Number:
Japanese Patent JP4343686
Kind Code:
B2
Abstract:
The present invention relates to device for space selective switching of an optical signal from an input access waveguide to a first selected output access waveguide. Said device comprising a multi-mode interference (MMI) waveguide having at a first side a number, N, of accesses for connection of access waveguides. Said MMI waveguide having a length, in light propagating direction, so that an image at the i:th, i<=N access waveguide propagating into said MMI waveguide will produce N self-images at a second side opposite to said first side, where N is an integer than 1. Said device further comprises reflective means located in said MMI waveguide close to said second side, arranged to reflect said N self-images towards said first side of said MMI waveguide, and means, arranged at said second side, for adjusting the phase of each of said self-images to create a single self-image at said selected output access waveguide.
Inventors:
Augustusson, Torsten
Application Number:
JP2003531231A
Publication Date:
October 14, 2009
Filing Date:
September 27, 2002
Export Citation:
Assignee:
Telefon Akti Bora Get Elm Ericson (Pubble)
International Classes:
G02F1/313; G02B6/28; G02B6/35
Domestic Patent References:
| JP11502634A |
Foreign References:
| WO2001033758A1 |
Other References:
R. M. Jenkins, et al.,"Novel 1xN and NxN integrated optical switches using self-imaging multimode GaAs/AlGaAs waveguides",Applied Physics Letters,1994年 2月 7日,Vol.64, No.6,p.684-686
L. B. Soldano, et al.,"Optical multi-mode interference devices based on self-imaging: principles and applications",Journal of lightwave technology,1995年 4月,Vol.13, No.4,p.615-627
L. B. Soldano, et al.,"Optical multi-mode interference devices based on self-imaging: principles and applications",Journal of lightwave technology,1995年 4月,Vol.13, No.4,p.615-627
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura