Wavelength tuning time measurement apparatus and method for multi-wavelength passive optical network
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United States of America Patent
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Aug 18, 2015
Grant Date -
Nov 14, 2013
app pub date -
Apr 19, 2013
filing date -
Apr 20, 2012
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Abstract
A wavelength tuning time measurement apparatus and method for a multi-wavelength passive optical network (MW PON) are provided. The wavelength tuning time measurement apparatus for measuring a wavelength tuning time of a wavelength-variable light source included in the MW PON system includes an optical filter configured to pass only light of a certain wavelength bandwidth and a photo detector configured to sense light passing through the optical filter. The wavelength tuning time is a time taken from a time when a wavelength change signal is transferred to the wavelength-variable light source, to a time when light starts to be successively sensed by the photo detector.
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