Title:
【発明の名称】光導波路及びそれを用いた光アイソレータ
Document Type and Number:
Japanese Patent JP2719187
Kind Code:
B2
Abstract:
A waveguide type light isolator capable of easily matching the phases of the TE wave and TM wave is disclosed. The waveguide type light isolator comprises a substrate (11) and a light waveguide layer (23) formed on the substrate (11). The waveguide layer (23) has a super lattice structure in which well layers and barrier layers are alternately laminated. At least one of the well layers and barrier layers contains magnetic ions. An energy between an electron and a light hole in the light waveguide layer (23) is larger than that of light propagating in the waveguide layer (23). Further, an energy between an electron and a heavy hole in light waveguide layer (23) is smaller than that of light propagating in the waveguide layer (23).
Inventors:
Hitoshi Oda
Application Number:
JP11367489A
Publication Date:
February 25, 1998
Filing Date:
May 08, 1989
Export Citation:
Assignee:
Canon Inc
International Classes:
G02F1/025; G02B6/12; G02B27/28; G02F1/095; H01S5/00; H01S5/026; (IPC1-7): H01S3/18; G02B6/12
Attorney, Agent or Firm:
Wakabayashi Tadashi