RAMAN-BASED WAVELENGTH SWEPT LASER AND LONG-DISTANCE SENSING SYSTEM HAVING THE SAME

摘要

A Raman-based long-distance sensing system according to the present invention may include a Raman-based wavelength swept laser which includes a laser output and a residual pump and generates light; and a light amplification part which secondarily amplifies the light by reusing the residual pump remaining when the Raman-based wavelength swept laser firstly amplifies the light. According to the present invention, the output power can be improved by reusing the residual pump generated from the Raman-based wavelength swept laser and light amplification efficiency can be improved as well.