Intra-cavity patterning for mode control in 1.3µm coupled VCSEL arrays
| Autor: | Andrei Caliman, Vladimir Iakovlev, Lukas Mutter, Benjamin Dwir, Alexandru Mereuta, Elyahou Kapon, Alexei Sirbu |
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| Rok vydání: | 2011 |
| Předmět: |
Amplified spontaneous emission
Materials science business.industry Physics::Optics 02 engineering and technology 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Vertical-cavity surface-emitting laser Wavelength 020210 optoelectronics & photonics Optics Tunnel junction Thermal 0202 electrical engineering electronic engineering information engineering Optoelectronics Spontaneous emission 0210 nano-technology business Refractive index Electron-beam lithography |
| Zdroj: | Optic Express |
| DOI: | 10.1364/OE.19.004827 |
| Popis: | We report coupled VCSEL arrays, emitting at 1.3 μm wavelength, in which both the optical gain/loss and refractive index distributions were defined on different vertical layers. The arrays were electrically pumped through a patterned tunnel junction, whereas the array pixels were realized by intra-cavity patterning using sub-wavelength air gaps. Stable oscillations in coupled modes were evidenced for 2x2 array structures, from threshold current up to thermal roll-over, using spectrally resolved field pattern analysis. |
| Databáze: | OpenAIRE |
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