Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2008-04-01
2008-04-01
Font, Frank G. (Department: 2883)
Optical waveguides
With optical coupler
Switch
C385S016000, C385S017000, C385S019000, C385S033000, C385S047000, C385S027000, C385S024000, C359S291000, C359S197100
Reexamination Certificate
active
07352927
ABSTRACT:
Effects of diffraction of a spectral beam from an edge of the micromirrors are reduced in order to optimize the passband in a wavelength selective switch. The effects of diffraction on the pass band may be reduced by appropriate modification of the edges of the micromirrors, by modification of the input and/or output ports to allow for attenuation by rotation of the micromirror about the switching axis, by using rotation of the micromirror about both the attenuation axis and the switching axis to achieve the desired level of attenuation, by inserting an aperture at a focal plane or external to the device to reduce the magnitude of the micromirror edge diffraction transmitted to any or all output ports, or by appropriate filtering of angular frequencies with a diffraction grating used to separate a multi-channel optical signal into constituent spectral beams.
REFERENCES:
patent: 5629790 (1997-05-01), Neukermans et al.
patent: 5745271 (1998-04-01), Ford et al.
patent: 5835458 (1998-11-01), Bischel et al.
patent: 5868480 (1999-02-01), Zeinali
patent: 5960133 (1999-09-01), Tomlinson
patent: 5974207 (1999-10-01), Aksyuk et al.
patent: 6172777 (2001-01-01), Flood et al.
patent: 6193376 (2001-02-01), Hayashi et al.
patent: 6204946 (2001-03-01), Aksyuk et al.
patent: 6205269 (2001-03-01), Morton
patent: 6222954 (2001-04-01), Riza
patent: 6259841 (2001-07-01), Bhagavatula
patent: 6263127 (2001-07-01), Dragone et al.
patent: 6263135 (2001-07-01), Wade
patent: 6289155 (2001-09-01), Wade
patent: 6307657 (2001-10-01), Ford
patent: 6327398 (2001-12-01), Solgaard et al.
patent: 6343862 (2002-02-01), Sawai et al.
patent: 6345133 (2002-02-01), Morozov
patent: 6381387 (2002-04-01), Wendland, Jr.
patent: 6415073 (2002-07-01), Cappiello et al.
patent: 6418250 (2002-07-01), Corbosiero et al.
patent: 6439728 (2002-08-01), Copeland
patent: 6453087 (2002-09-01), Frish et al.
patent: 6549699 (2003-04-01), Belser et al.
patent: 6625346 (2003-09-01), Wilde
patent: 6634810 (2003-10-01), Ford et al.
patent: 6647172 (2003-11-01), Giles et al.
patent: 6657770 (2003-12-01), Marom et al.
patent: 6661393 (2003-12-01), Tegreene et al.
patent: 6661945 (2003-12-01), Tedesco et al.
patent: 6661948 (2003-12-01), Wilde
patent: 6687431 (2004-02-01), Chen et al.
patent: 6695457 (2004-02-01), Drieenhuizen et al.
patent: 6704476 (2004-03-01), Ford et al.
patent: 6757458 (2004-06-01), Neilson et al.
patent: 6760511 (2004-07-01), Garrett et al.
patent: 6771855 (2004-08-01), Pezeshki et al.
patent: 6798941 (2004-09-01), Smith et al.
patent: 6820988 (2004-11-01), Drieenhuizen et al.
patent: 6845195 (2005-01-01), Tedesco
patent: 6958861 (2005-10-01), Argueta-Diaz
patent: 6975785 (2005-12-01), Ghandi et al.
patent: 7062120 (2006-06-01), Shiozaki et al.
patent: 7162115 (2007-01-01), Brophy et al.
patent: 2002/0176657 (2002-11-01), Burke et al.
patent: 2003/0095307 (2003-05-01), Moon et al.
patent: 2004/0160687 (2004-08-01), Van Drieenhuizen et al.
patent: 2004/0208468 (2004-10-01), Sufleta et al.
patent: 2004/0252938 (2004-12-01), Ducellier et al.
patent: 2005/0074204 (2005-04-01), Wilson et al.
patent: 2006/0093256 (2006-05-01), Yamashita et al.
patent: 2006/0093257 (2006-05-01), Aota et al.
patent: 2006/0140536 (2006-06-01), Aota et al.
patent: 2006/0228071 (2006-10-01), Davis et al.
patent: 2006/0245030 (2006-11-01), Pan
patent: 2007/0166034 (2007-07-01), Tremaine
U.S. Appl. No. 11/469,394 to Joseph E. Davis et al., filed Aug. 31, 2006.
U.S. Appl. No. 11/840,182 to Mark H. Garrett, filed Aug. 16, 2007.
“The International Search Report” and “The Written Opinion of the International Searching Authority” for International application No. PCT/US2006/024075.
“The International Search Report” and “The Written Opinion of the International Searching Authority” for International application No. PCT/US2006/008639.
“The International Search Report” and “The Written Opinion of the International Searching Authority” for International application No. PCT/US2006/043169.
Davis Joseph E.
Garrett Mark H.
Anderson Guy G
Capella Photonics
Font Frank G.
Isenberg Joshua D.
JDI Patent
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