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Optoelectronics

Coupling lasers using photonic crystals

Large arrays of vertical laser sources need to emit a coherent output of light. This can be achieved through photonic crystals that mediate the interaction between the lasers in the array.

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Figure 1: Confining light in a photonic crystal VCSEL.
Figure 2: Coupled emission from a VCSEL array.

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Correspondence to Axel Scherer.

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Witzens, J., Scherer, A. Coupling lasers using photonic crystals. Nature Mater 4, 512–513 (2005). https://doi.org/10.1038/nmat1422

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