Invention Grant
US06943932B2 Waveguide mach-zehnder optical isolator utilizing transverse magneto-optical phase shift
失效
使用横向磁光相移的波导马赫 - 泽德光隔离器
- Patent Title: Waveguide mach-zehnder optical isolator utilizing transverse magneto-optical phase shift
- Patent Title (中): 使用横向磁光相移的波导马赫 - 泽德光隔离器
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Application No.: US10240521Application Date: 2001-04-20
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Publication No.: US06943932B2Publication Date: 2005-09-13
- Inventor: Junichiro Fujita , Miguel Levy , Richard M Osgood
- Applicant: Junichiro Fujita , Miguel Levy , Richard M Osgood
- Applicant Address: US NY New York
- Assignee: The Trustees of Columbia University in the City of New York
- Current Assignee: The Trustees of Columbia University in the City of New York
- Current Assignee Address: US NY New York
- Agency: Baker Botts LLP
- International Application: PCT/US01/12839 WO 20010420
- International Announcement: WO01/81989 WO 20011101
- Main IPC: G02B6/26
- IPC: G02B6/26 ; G02F1/095 ; G02F1/21 ; G02F1/225 ; G02F1/09
Abstract:
A device and method for optical isolation for use in optical systems is disclosed. The device provides for a waveguide optical isolator fabricated using two arms, made of optical waveguides comprising magneto-optical material, in a Mach-Zehnder interferometer configuration. The device of the present invention operates using the TM mode of a light wave and, thus, does not require phase-matching of TM and TE modes. Further, the present invention does not use polarizers to extinguish the optical feed-back.
Public/Granted literature
- US20040047531A1 Waveguide mach-zehnder optical isolator utilizing transverse magneto-optical phase shift Public/Granted day:2004-03-11
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