Superluminescent diode and optical coherence tomography apparatus including the superluminescent diode
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United States of America Patent
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Sep 1, 2015
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Aug 15, 2013
app pub date -
Dec 19, 2012
filing date -
Feb 13, 2012
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Abstract
A superluminescent diode which amplifies light through stimulated amplification and outputs emitted beams from one of edges at two ends includes a cladding layer of a first conductivity type formed on a semiconductor substrate, an active layer formed on the cladding layer of the first conductivity type, a cladding layer of a second conductivity type formed on the active layer, and a multilayer film formed at the other edge opposite to the one edge that emits the beams, reflectance of which has wavelength dependence, and a spectral shape of the emitted beams output from the one edge is controllable by the multilayer film.
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