Optical waveguides – With optical coupler – Particular coupling function
Reexamination Certificate
2007-09-11
2007-09-11
Bovernick, Rodney (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling function
C385S024000, C385S037000
Reexamination Certificate
active
10701109
ABSTRACT:
An architecture that enables one to realize a FIR transversal filter with apodized, interlaced bipolar tap coefficients (an). The tap coefficients, an, are varied via the control of the optical powers emitted by an array of WDM laser sources. Also, a filter architecture where tap coefficients can be agilely reconfigured in both polarity and magnitude. One chirped fiber-grating may be used to implement a series of wavelength-dependent tap-weights. The filter designs can be utilized to eliminate the low-pass response centered at DC, allowing one to place the center frequency (fc)1of the first passband at a targeted intermediate frequency (IF).
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Hayes Robert R.
Ng Willie
Walston Andrew
Bovernick Rodney
HRL Laboratories LLC
Ladas & Parry
Stahl M.
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