Optical time domain reflectometer using polymer wavelength tunable laser
AssigneeSOLiD, INC.
InventorKee-Woon NA
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Abstract
The present invention relates to an optical time domain reflectometer using, as a optical source, a polymer wavelength tunable laser which tunes the wavelength of an optical signal by using polymer grating. The optical time domain reflectometer of the present invention tunes the wavelength of a polymer wavelength tunable laser that outputs a constant optical signal and inspects cutting, reflection, and damage of an optical line by separating an optical signal returning from the optical line by an optical filter having a specific central wavelength. Since a optical source having a constant light intensity is used, the present invention has an effect of reducing the nonlinear effect generated in an optical line.
Claims13
An optical time domain reflectometer, comprising:
- a wavelength-tunable laser configured to output an optical signal having a wavelength that varies with time in response to a control signal received from a controller;
- and
- an optical filter configured to selectively pass a reflected optical signal having a predetermined wavelength among a plurality of reflected optical signals that are returned from an optical fiber cable.
An optical time domain reflectometer, comprising:
- a wavelength-tunable laser;
- and
- a controller configured to output a control signal for tuning an operating wavelength of the wavelength-tunable laser,
- wherein the wavelength-tunable laser outputs an optical signal having a wavelength that varies with time in response to the control signal.
Dependencies are inferred from the claim text.