Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2007-07-03
2007-07-03
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Switch
C385S015000, C385S016000, C359S320000, C398S012000, C398S019000, C398S045000
Reexamination Certificate
active
10876645
ABSTRACT:
A light source supplies optical signal to an optical switch and a detector detects light receiving level. A control unit changes a deflection control amount for changing an angle of a tilt mirror, and outputs the deflection control amount to a driving unit. When an input and an output ports are same, optical offset of the tilt mirror is calculated based on optimal angle at which the light detector detects an optimal point of the light receiving level. Whenever the input and the output port are different, a structure parameter of the tilt mirror is calculated based on the optical offset and the optimal angle. The optical offset and the structure parameter are stored in a memory as a test result.
REFERENCES:
patent: 2002/0109076 (2002-08-01), Tochio et al.
patent: 9-508218 (1997-08-01), None
patent: 2002-236264 (2002-08-01), None
patent: 2002-328316 (2002-11-01), None
patent: 95/20301 (1995-07-01), None
Ishizuka, Atsuo, et al., “High-Speed 3-Dimensional MEMS Optical Switch”, 2002 Communications Conference of the Institute of Electronics, Information, and Communication Engineer, 2002.
Ishizuka Atsuo
Mori Kazuyuki
Sakai Yoshio
Tochio Yuji
Blevins Jerry Martin
Font Frank G.
Fujitsu Limited
Staas & Halsey , LLP
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