Development of High Power Quasi-CW Laser Bar Stacks With Enhanced Assembly Structure
| Autor: | Junya Maeda, Takehito Nagakura, Nobuto Kageyama, Motoki Takauji, Harumasa Yoshida, Kousuke Torii, Takenori Morita, Takayuki Uchiyama |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Laser diode business.industry Bar (music) Energy conversion efficiency 02 engineering and technology Type (model theory) Laser 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Semiconductor laser theory 010309 optics 020210 optoelectronics & photonics Electricity generation Optics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering business Diode |
| Zdroj: | IEEE Photonics Technology Letters. :1-1 |
| ISSN: | 1941-0174 1041-1135 |
| Popis: | We report on our recent development of quasi-continuous-wave 940-nm laser diode (LD) bars with passive cooled type. The 10 LD bar stacks with a narrow pitch of 1.54 mm have demonstrated a high output power of 10.1 kW, corresponding to 1 kW/bar, under 200- $\mu \text{s}$ pulses at 50-Hz operating frequency. The maximum conversion efficiency of 58% has been achieved at an output power of 300 W. In condition of 1000 $\mu \text{s}$ pulses at 10-Hz operating frequency, we have achieved an output power of 0.93 kW and a conversion efficiency of 59%, respectively. We consider that the LD bar stacks are suitable for diode pumped high-energy class solid-state lasers. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|