Wavelength tuning time measurement apparatus and method for multi-wavelength passive optical network

摘要

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.

主权项

1. An apparatus for measuring a wavelength tuning time of a wavelength-variable light source included in a multi-wavelength passive optical network (MW PON) system, the apparatus comprising:
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, and to calculate the wavelength tuning time as 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.