Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2007-01-30
2007-01-30
Song, Sarah (Department: 2874)
Optical waveguides
With optical coupler
Switch
C385S024000, C359S222100
Reexamination Certificate
active
10990645
ABSTRACT:
Novel architectures of integrated optical add/drop wavelength division multiplexers and FTIR switches are disclosed. In one embodiment, an add/drop includes: (1) a primary refracting body having a total internal reflecting surface and capable of transmitting optical energy therethrough, (2) a frustrating refracting body having a frustrating surface located proximate the total internal reflecting surface, (3) an actuator, coupled to the primary refracting body and the frustrating refracting body, that drives the frustrating refracting body thereby to frustrate a reflection of the total internal reflecting surface and (4) an optical filter, optically aligned with the primary refracting body, that configurably passes selected wavelengths of light through the primary refracting body and reflects remaining wavelengths.
REFERENCES:
patent: 4449792 (1984-05-01), Korth
patent: 5234772 (1993-08-01), Oguchi et al.
patent: 6356679 (2002-03-01), Kapany
patent: 6463192 (2002-10-01), Kapany
patent: 6665461 (2003-12-01), Laughlin
patent: 6842564 (2005-01-01), Laughlin
U.S. Appl. No. 10/224,830, filed on Aug. 21, 2002, to Richard H. Laughlin, entitled “Remotely Configurable Add/Drop for Wavelength Division Multiplexing and Method of Operating the Same” currently allowed.
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