公开(公告)号：WO0181989A3

公开(公告)日：2002-06-13

申请号：PCT/US0112839

申请日：2001-04-20

Applicant: UNIV COLUMBIA ,  FUJITA JUNICHIRO ,  LEVY MIGUEL ,  OSGOOD RICHARD M JR

Inventor： FUJITA JUNICHIRO ,  LEVY MIGUEL ,  OSGOOD RICHARD M JR

IPC: G02B6/26 ,  G02F1/095 ,  G02F1/21 ,  G02F1/225

CPC classification number: G02B6/2746 ,  G02F1/0955 ,  G02F1/225 ,  G02F2001/212 ,  G02F2201/063

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 feedback.

Abstract translation: 公开了一种用于光学系统中的用于光隔离的装置和方法。 该装置提供了使用由Mach-Zehnder干涉仪配置构成的包括磁光材料的光波导制成的两个臂制造的波导光隔离器。 本发明的装置使用光波的TM模式进行操作，因此不需要TM和TE模式的相位匹配。 此外，本发明不使用偏振器来熄灭光学反馈。

公开(公告)号：JP2000217843A

公开(公告)日：2000-08-08

申请号：JP2643799

申请日：1999-02-03

Applicant: FUJITA JUNICHIRO

Inventor： FUJITA JUNICHIRO

IPC: A61C13/34

Abstract: PROBLEM TO BE SOLVED: To provide a trimmer for a gypsum model for dental treatments such that chips in a working chamber can be sucked by a dust collector. SOLUTION: A diamond wheel 6 with a rotating shaft 5 oriented horizontally is placed within a working chamber 2 having an opening directed to a worker. In order to place a gypsum model for working, two worktables 23, 31 are provided, the worktable 23 being movable vertically and the worktable 31 being movable horizontally in a straight line. The worktable 23 can be adjusted in angle relative to the flat plate surface 6a of the diamond wheel 6. Chips generated during working are sucked by a dust collector from both a discharge hole provided in a position below the diamond wheel 6 and a discharge hole 35 provided in a position therebehind.

公开(公告)号：US20050157975A1

公开(公告)日：2005-07-21

申请号：US10879264

申请日：2004-06-29

Applicant: Louay Eldada ,  Fujita Junichiro

Inventor： Louay Eldada ,  Fujita Junichiro

IPC: G02B6/12 ,  G02B6/02 ,  G02B6/10 ,  G02B6/122 ,  G02B6/125 ,  G02B6/136 ,  G02B6/138 ,  G02B6/28 ,  G02B6/35 ,  G02F1/01 ,  G02F1/065 ,  G02F1/313 ,  G02B6/26

CPC classification number: G02B6/125 ,  G02B6/138 ,  G02B2006/121 ,  G02B2006/12145 ,  G02B2006/1215 ,  G02F1/0147 ,  G02F1/065 ,  G02F1/3137

Abstract: The present invention is directed to highly integrated lightwave circuits made from ultrahigh-index-contrast materials. Specifically the present invention is directed to optical switch arrays and means for their fabrication.

Abstract translation: 本发明涉及由超高折射率对比材料制成的高度集成的光波回路。 具体地说，本发明涉及光开关阵列及其制造方法。