Signal light transmitting apparatus, signal light transmitting system using the same, and signal light transmitting method
AssigneeNEC Corporation
InventorYutaka Yano
Life of this patent
Estimating the term…
Abstract
A signal light transmitting apparatus from which signal light is led into a transmission optical fiber, the transmission optical fiber transmitting the led signal light, includes: a signal light power changer which changes power of signal light led thereto, the changed signal light being led into the transmission optical fiber therefrom; a scattering pump light source which emits scattering pump light producing scattered light in the transmission optical fiber; a scattered light power measure which measures the power of the produced scattered light; and a controller which controls the signal light power changer based on the measured power of the scattered light.
Claims23
A signal light transmitting apparatus from which signal light is led into a transmission optical fiber, the transmission optical fiber transmitting the led signal light, comprising:
- a signal light power changer which changes power of signal light led thereto, the changed signal light being led into the transmission optical fiber therefrom;
- a scattering pump light source which emits scattering pump light producing scattered light in the transmission optical fiber;
- a scattered light power measure which measures the power of the produced scattered light;
- and
- a controller which controls the signal light power changer based on the measured power of the scattered light.
A signal light transmitting method comprising:
- a scattered light producing step of propagating scattering pump light through a transmission optical fiber which transmits signal light, so that scattered light is produced in the transmission optical fiber;
- a scattered light power measuring step of measuring the power of the produced scattered light;
- and
- a signal light adjusting step of adjusting power of signal light being led into the transmission optical fiber based on the measured power of the scattered light.
Dependencies are inferred from the claim text.