Exceeding 50% slope efficiency DBR fiber laser based on a Yb-doped crystal-derived silica fiber with high gain per unit length
![KasapPP4 04 1 - Laser Diode Efficiencies Slope Efficiency Po Po slope I abovethreshold I I th Increase in optical output power slope Increase in | Course Hero KasapPP4 04 1 - Laser Diode Efficiencies Slope Efficiency Po Po slope I abovethreshold I I th Increase in optical output power slope Increase in | Course Hero](https://www.coursehero.com/thumb/5c/be/5cbe5bc5ac8126234bb5b6d0f4165ff6d30bfb65_180.jpg)
KasapPP4 04 1 - Laser Diode Efficiencies Slope Efficiency Po Po slope I abovethreshold I I th Increase in optical output power slope Increase in | Course Hero
![Slope efficiency of fiber laser for different lengths of active fibers. | Download Scientific Diagram Slope efficiency of fiber laser for different lengths of active fibers. | Download Scientific Diagram](https://www.researchgate.net/publication/273187619/figure/fig9/AS:285117827956740@1444988795282/Slope-efficiency-of-fiber-laser-for-different-lengths-of-active-fibers.png)
Slope efficiency of fiber laser for different lengths of active fibers. | Download Scientific Diagram
![Er : Yb :glass laser optical slope efficiency and pump-energy threshold... | Download Scientific Diagram Er : Yb :glass laser optical slope efficiency and pump-energy threshold... | Download Scientific Diagram](https://www.researchgate.net/publication/225732674/figure/fig6/AS:314471894536197@1451987350363/Er-Yb-glass-laser-optical-slope-efficiency-and-pump-energy-threshold-vs-output-mirror.png)
Er : Yb :glass laser optical slope efficiency and pump-energy threshold... | Download Scientific Diagram
![Photonic Frontiers: High-efficiency Optical Pumping: 'Going green' cranks up the laser power | Laser Focus World Photonic Frontiers: High-efficiency Optical Pumping: 'Going green' cranks up the laser power | Laser Focus World](https://img.laserfocusworld.com/files/base/ebm/lfw/image/2016/04/1604lfw_hec_f1.png?auto=format,compress&fit=fill&fill=blur&w=1200&h=630)
Photonic Frontiers: High-efficiency Optical Pumping: 'Going green' cranks up the laser power | Laser Focus World
![Figure 3 from 50.4% slope efficiency thulium-doped large-mode-area fiber laser fabricated by powder technology. | Semantic Scholar Figure 3 from 50.4% slope efficiency thulium-doped large-mode-area fiber laser fabricated by powder technology. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/1d89c35a262be9247cea0dc6ed014e035c66dd82/3-Figure3-1.png)