WDM OPTICAL SYSTEM AND METHOD INCLUDING MULTI-CHANNEL TRANSMITTERS WITH FILTERED OUTPUT FOR CHANNEL WAVELENGTH SELECTION
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United States of America Patent
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Issued Date -
Jan 17, 2013
app pub date -
Jul 6, 2012
filing date -
Jul 14, 2011
priority date (Note) -
Abandoned
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Abstract
A wavelength division multiplexed (WDM) optical system generally includes multi-channel transmitters that transmit optical signals on multiple channel wavelengths in the WDM system. The output of the multi-channel transmitters is filtered to select a unique channel wavelength associated with each of the respective transmitters for multiplexing and transmission in the WDM optical system. One embodiment of a multi-channel transmitter includes a full-spectrum Fabry-Perot (FP) laser that emits light across a range of wavelengths including all of the system channel wavelengths. Another embodiment of a multi-channel transmitter includes a broadly-tunable FP laser that is tunable to emit light across different ranges of wavelengths including subsets of the system channel wavelengths. The WDM optical system may include an arrayed waveguide grating (AWG) for filtering and multiplexing the optical signals output from the transmitters.
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