Patent ID: 9548583
Date: 2017-01-17
CPC Classifications: H01S

Claim:
1. A fiber laser oscillator comprising: a plurality of fiber laser modules configured to generate and output laser lights; a combiner configured to combine and emit the laser lights respectively outputted from the plurality of fiber laser modules to a fiber laser processing machine disposed at an exterior of the fiber laser oscillator; a low-dew-pointizer section that changes compressed air supplied from the exterior into dry air via a gas separation membrane module; and a distributor for distributing and supplying the dry air respectively to the plurality of fiber laser modules, wherein a first air supply path supplies the dry air from the low-dew-pointizer section to the distributor to purge the plurality of fiber laser modules and reduce condensation formation on the plurality of fiber laser modules as the plurality of fiber laser modules generate and output the laser lights, and a second air supply path supplies the dry air from the low-dew pointizer section to the fiber laser processing machine to prevent adhesion of grit and dust on a laser head of the fiber laser processing machine.