Terahertz quantum cascade laser as local oscillator in a heterodyne receiver.

Terahertz quantum cascade lasers have been investigated with respect to their performance as a local oscillator in a heterodyne receiver. The beam profile has been measured and transformed in to a close to Gaussian profile resulting in a good matching between the field patterns of the quantum cascade laser and the antenna of a superconducting hot electron bolometric mixer. Noise temperature measurements with the hot electron bolometer and a 2.5 THz quantum cascade laser yielded the same result as with a gas laser as local oscillator.

• Publication year

  2005

• Venue

  Optics Express

• Publication date

  2005-07-25

• Fields of study

  Medicine, Physics, Engineering

• Identifiers
  DOI 10.1364/OPEX.13.005890PMID 19498595
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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