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What’s the difference between a VCSEL and PCSEL?
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What’s the difference between a VCSEL and PCSEL?
A vertical cavity surface-emitting laser (VCSEL) relies on a three-dimensional (3D) structure for light emission. A photonic crystal surface-emitting laser (PCSEL) incorporates a 2D photonic crystal (PhC) layer to manipulate light emission. Those structural differences lead to different performance and application possibilities. An obvious difference between the various types of semiconductor lasers is the beam… The post What’s the difference be…
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