Watt-class blue vertical-cavity surface-emitting laser arrays
| Autor: | Takanobu Akagi, Masaru Kuramoto, Keisuke Nakata, Tatsuma Saito, Seiichiro Kobayashi, Kazufumi Tanaka, Komei Tazawa |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Watt Materials science business.industry Thermal resistance General Engineering General Physics and Astronomy 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences law.invention Power (physics) Vertical-cavity surface-emitting laser Beam pattern law 0103 physical sciences Optoelectronics Continuous wave Divergence angle 0210 nano-technology business |
| Zdroj: | Applied Physics Express. 12:091004 |
| ISSN: | 1882-0786 1882-0778 |
| DOI: | 10.7567/1882-0786/ab3aa6 |
| Popis: | We have successfully demonstrated a high output power of 1.19 W from a two-dimensional 16 × 16 blue GaN-based vertical-cavity surface-emitting laser (VCSEL) array under continuous wave operation at a lasing wavelength of 447 nm. A 256-element VCSEL array exhibited a high-quality far-field beam pattern with a circular shape and narrow divergence angle of around 7°. A very small shift of the lasing wavelength with a change in the dissipated power of 0.05 nm W−1 revealed a very low thermal resistance of 3.4 K W−1. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|