Controlled Polarization Switching in VCSELs by Means of Asymmetric Current Injection
| Autor: | R.C. Strijbos, LM Luc Augustin, Hugo Thienpont, Guy Verschaffelt, E. Smalbrugge, Kent D. Choquette, E.J. Geluk, F Fouad Karouta, T.G. van de Roer |
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| Přispěvatelé: | Applied Physics and Photonics, Vrije Universiteit Brussel, Photonic Integration |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
Distributed feedback laser
Materials science business.industry Optical polarization Polarization (waves) Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Semiconductor laser theory Gallium arsenide law.invention chemistry.chemical_compound Laser polarization Optics chemistry law Fiber laser Optoelectronics Electrical and Electronic Engineering business |
| Zdroj: | Vrije Universiteit Brussel IEEE Photonics Technology Letters, 16(3), 708-710. Institute of Electrical and Electronics Engineers |
| ISSN: | 1041-1135 |
| Popis: | We have investigated the potential of asymmetric current injection for polarization switching in GaAs-based intracavity contacted vertical-cavity surface-emitting lasers using two sets of p- and n-type contacts per device. When using the contacts aligned along the [11~0] crystal direction, the observed laser polarization is parallel to [110], whereas, using the contacts along the [110] crystal direction, the polarization of the laser emission switches to a direction making an angle of 25/spl deg/-90/spl deg/ towards [110]. To overcome this peculiar result, a careful design of the contact layers in the intracavity structure is required. |
| Databáze: | OpenAIRE |
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