Bottom-Emitting Coherently Coupled Vertical Cavity Laser Arrays
| Autor: | Zihe Gao, Matthew T. Johnson, Bradley J. Thompson, Bibhudutta Rout, Gautham Ragunathan, Kent D. Choquette |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Equivalent series resistance Subthreshold conduction business.industry Physics::Optics 02 engineering and technology Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Vertical-cavity surface-emitting laser law.invention 020210 optoelectronics & photonics Optics law 0202 electrical engineering electronic engineering information engineering Optoelectronics Electrical and Electronic Engineering Current (fluid) business Luminescence Lasing threshold Photonic crystal |
| Zdroj: | IEEE Photonics Technology Letters. 28:513-515 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2015.2500735 |
| Popis: | Two-dimensional coherently coupled photonic crystal ion-implanted bottom emitting vertical cavity surface emitting laser arrays are demonstrated. Subthreshold luminescence shows uniform current injection below threshold, benefiting from the improved contact alignment compared with the top emitting arrays. In-phase operation has been achieved in $2\times 2$ and $3\times 3$ arrays at lasing threshold. A remaining challenge is achieving uniform current distribution above lasing threshold for larger arrays due to the variation of series resistance through each of the elements of the arrays. |
| Databáze: | OpenAIRE |
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