Reliable high-efficiency high-brightness laser diode bars at
| Autor: | Jeff Mott, Frank Reinhardt, Rajiv Pandey, George Treusch, Steve Macomber, Hanxuan Li, Tom Truchan, Dennis Brown, Ray Pryor |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Brightness
Materials science Maximum power principle Laser diode business.industry Bar (music) Energy conversion efficiency Chemical vapor deposition Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Optics law Optoelectronics Laser beam quality Electrical and Electronic Engineering business |
| Zdroj: | Optics & Laser Technology. 36:327-329 |
| ISSN: | 0030-3992 |
| DOI: | 10.1016/j.optlastec.2003.09.017 |
| Popis: | High-quality InGaAs/AlGaAs laser diode bars emitting at 940 nm have been fabricated by low-pressure metal-organic chemical vapor deposition (LP-MOCVD). Two hundred and ten Watts maximum continuous-wave output power and a maximum power conversion efficiency of 60% at an output power of 72 W have been demonstrated for a single 1-cm-wide laser bar. These bars exhibit a very good beam quality of 5.7°×27.2° (full-width at half-maximum). Reliability test have been carried out for over 2000 h at ∼58 W at room temperature. Under these conditions, the extrapolated lifetime is ∼100,000 h , which suggests that AlGaAs-based lasers of proper designs could have similar long-term reliability as their Al-free counterpart. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect