Low noise optical pre-amplifier for ultra-low-light detectors and FPAs

An optical pre-amplifier is described. The optical pre-amplifier has an optical amplifier region that has a semiconductor active region having a direct electronic band gap with a conduction band edge. The semiconductor active region is embedded within a photonic crystal having an electromagnetic ban...

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Bibliographische Detailangaben
Hauptverfasser: Koenck Steven E, Brown Robert G, Jensen David W
Format: Patent
Sprache:eng
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Zusammenfassung:An optical pre-amplifier is described. The optical pre-amplifier has an optical amplifier region that has a semiconductor active region having a direct electronic band gap with a conduction band edge. The semiconductor active region is embedded within a photonic crystal having an electromagnetic band gap having photon energies overlapping the energy of the conduction band edge of the electronic band gap such that spontaneous emission of photons in the semiconductor active region is suppressed.