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High power spiral cavity quantum cascade superluminescent emitter

  • Mei C. Zheng
  • , Nyan L. Aung
  • , Abanti Basak
  • , Peter Q. Liu
  • , Xiaojun Wang
  • , Jen Yu Fan
  • , Mariano Troccoli
  • , Claire F. Gmachl
  • Princeton University
  • AdTech Optics, Inc.

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Quantum Cascade devices with an emission wavelength centered around 5 μm have been shaped into compact, yet long (8 mm and 12 mm) spiral cavities to increase mid-infrared superluminescence (SL) power. Up to ∼57 mW of SL power at 250 K is obtained with a Gaussian emission spectrum with a full width at half maximum of 56 cm-1 and a coherence length of ∼107 μm.

Original languageEnglish
Pages (from-to)2713-2719
Number of pages7
JournalOptics Express
Volume23
Issue number3
DOIs
StatePublished - Feb 9 2015

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