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Distributed-feedback laser

A distributed-feedback laser (DFB) is a type of laser diode, quantum-cascade laser or optical-fiber laser where the active region of the device contains a periodically structured element or diffraction grating. The structure builds a one-dimensional interference grating (Bragg scattering), and the grating provides optical feedback for the laser. This…

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Distributed-feedback laser

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Avg. degree1.9
Density0.095238
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laser dfb lasers grating cavity shift longitudinal light phase generally optical back mirrors modes temperature one changes much stable fabry

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