Invention Grant
- Patent Title: Bismuth-substituted rare-earth iron garnet crystal film and optical isolator
- Patent Title (中): 铋取代稀土铁石榴石晶体膜和光隔离器
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Application No.: US13884371Application Date: 2011-11-10
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Publication No.: US09322111B2Publication Date: 2016-04-26
- Inventor: Shuuji Oosumi , Yasutaka Nomi , Nobuo Nakamura , Hiroshi Hatanaka , Tomio Kajigaya
- Applicant: Shuuji Oosumi , Yasutaka Nomi , Nobuo Nakamura , Hiroshi Hatanaka , Tomio Kajigaya
- Applicant Address: JP Tokyo
- Assignee: SUMITOMO METAL MINING CO., LTD.
- Current Assignee: SUMITOMO METAL MINING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Kratz, Quintos & Hanson, LLP
- Priority: JP2010-265608 20101129
- International Application: PCT/JP2011/075920 WO 20111110
- International Announcement: WO2012/073671 WO 20120607
- Main IPC: C30B29/34
- IPC: C30B29/34 ; C30B19/12 ; C30B29/28 ; G02B1/02 ; H01F10/24 ; G02F1/09
Abstract:
A bismuth-substituted rare-earth iron garnet crystal film (RIG) which has an insertion loss of less than 0.60 dB and which can be produced in a high yield, as well as an optical isolator, which is grown by liquid phase epitaxy on a non-magnetic garnet substrate represented by a chemical formula of Gd3(ScGa)5O12, wherein the bismuth-substituted rare-earth iron garnet crystal film is represented by a chemical formula of La3-x-yGdxBiyFe5O12 (provided that 0
Public/Granted literature
- US20130224500A1 BISMUTH-SUBSTITUTED RARE-EARTH IRON GARNET CRYSTAL FILM AND OPTICAL ISOLATOR Public/Granted day:2013-08-29
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