| 摘要 |
The present invention relates to an optical cable testing device which uses a polymer wavelength tunable laser which tunes a wavelength of an optical signal as a light source by using polymer grating The optical line testing device tunes the wavelength of the polymer wavelength tunable laser outputting constant optical signals and tests the cut, the reflection, and the loss of the optical cable by separating the optical signal reflected from the optical cable. The present invention is provided to use the light source of constant light intensity thereby reducing nonlinear effect generated in the optical cable. The optical cable testing device for testing a state of the optical cable (102) comprises a wavelength tunable laser (402) which outputs the optical signals of a tunable wavelength; a signal processing and controlling unit (410) which outputs a control signal to tune an operation wavelength of the wavelength tunable laser (402); and an optical filter (406) which filters the optical signals reflected from the optical cable (102). |
