Optical waveguides – With optical coupler – Plural
Patent
1997-11-21
2000-01-11
Ngo, Hung N.
Optical waveguides
With optical coupler
Plural
385 37, 385 46, G02B 628
Patent
active
060144807
ABSTRACT:
A channel selection method and apparatus accommodate the dynamic reconfiguration of channels that are passed through parallel waveguides by selectively tuning Bragg gratings along the waveguides. In the preferred embodiment, the waveguides are output optical fibers connected to an optical splitter having an input of a wavelength division multiplexed (WDM) optical signal. The number of channels in the WDM signal is equal to the number of output fibers, which is in turn equal to the number of tunable Bragg gratings along each of the output fibers. The series of Bragg gratings on a particular output fiber is structurally identical to the other series, with each tunable Bragg grating being dedicated to passing or rejecting one of the channels of the WDM signal. Thus, the series of Bragg gratings along a particular output fiber may be tuned to isolate any of the channels or may be tuned to pass two or more channels. In addition to use in a demultiplexing application, the method and apparatus may be used in a multiplexing application to enable channel selection along each of a number of different input waveguides.
REFERENCES:
patent: 5434937 (1995-07-01), Glance
patent: 5446809 (1995-08-01), Fritz et al.
patent: 5457760 (1995-10-01), Mizrahi
patent: 5469288 (1995-11-01), Onaka et al.
patent: 5600473 (1997-02-01), Huber
patent: 5673129 (1997-09-01), Mizrahi
patent: 5699468 (1997-12-01), Farries et al.
Hewlett--Packard Company
Ngo Hung N.
LandOfFree
Optical energy selector apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical energy selector apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical energy selector apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1468286