Abstract
We report on an optically pumped vertical-external-cavity surface-emitting laser array exhibiting coherent coupling. Imaging of the far field shows interference consistent with in-phase coherent coupling, and a majority of total power is present in the central on-axis lobe. The physical mechanism of operation is attributed to diffractive coupling, wherein a small portion of the light emitting from each emitter is shared with adjacent emitters of the array.
Original language | English (US) |
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Article number | 6683040 |
Pages (from-to) | 430-432 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 26 |
Issue number | 5 |
DOIs | |
State | Published - Mar 1 2014 |
Keywords
- Coherent coupling
- Diode lasers
- VECSEL arrays
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering