The dfb laser applications are as following but not limited:
1 Gas detection Sensors:
- C2H6 Sensing
- O2 Sensing
- CH4 Sensing
2 Fiber-optic telecommunications, DFB lasers tend to be much more stable than Fabry–Perot FP or DBR lasers. DFB lasers are used frequently when single-mode operation is needed, especially in high-speed fiber-optic telecommunications.