Optical waveguides – With optical coupler – Plural
Reissue Patent
2011-07-05
2011-07-05
Healy, Brian M (Department: 2883)
Optical waveguides
With optical coupler
Plural
C385S011000, C385S034000, C385S037000, C398S083000
Reissue Patent
active
RE042521
ABSTRACT:
This invention provides a novel wavelength-separating-routing (WSR) apparatus that uses a diffraction grating to separate a multi-wavelength optical signal by wavelength into multiple spectral channels, which are focused onto an array of corresponding channel micromirrors. The channel micromirrors are individually controllable and continuously pivotable to reflect the spectral channels into selected output ports. As such, the inventive WSR apparatus is capable of routing the spectral channels on a channel-by-channel basis and coupling any spectral channel into any one of the output ports. The WSR apparatus of the invention may further employ a polarization diversity scheme, whereby polarization-sensitive effects become inconsequential and insertion loss is minimized. The WSR apparatus of the invention may additionally be equipped with servo-control and channel equalization capabilities. The WSR apparatus of the invention can be used to construct a novel class of dynamically reconfigurable optical add-drop multiplexers (OADMs) for WDM optical networking applications.
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Davis Joseph E.
Garrett Mark H.
Mansuripur Masud
Polynkin Pavel G.
Wilde Jeffrey P.
Capella Photonics, Inc.
Healy Brian M
Young Barry N.
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