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Application Instruction 003: Applications of the Superluminescent Diode (SLD)

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Application Instruction 003: Applications of the Superluminescent Diode (SLD)

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SLDs are applied in situations where a smooth and broadband optical spectrum (i.e. low temporal coherence), combined with high spatial coherence and relatively high intensity, is required. Superluminescent Diodes (SLDs) (or Superluminescent Light Emitting Diodes (SLEDs)) are optoelectronic semiconductor devices that emit broadband optical radiation based on superluminescence. In terms of construction, they are similar to laser diodes, containing an electrically driven p–n junction and an optical waveguide, but SLDs intentionally lack optical feedback, so that no laser action can occur.

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