Analysis of a narrowband terahertz signal generated by a unitravelling carrier photodiode coupled with a dual-mode semiconductor Fabry-Pérot laser

Sylwester Latkowski, Josué Parra-Cetina, Ramón Maldonado-Basilio, Pascal Landais, Guillaume Ducournau, Alexandre Beck, Emilien Peytavit, Tahsin Akalin, Jean-François Lampin

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)

Abstract

A narrowband terahertz signal generated by a unitravelling carrier photodiode (UTC-PD) interfaced with a dual-mode Fabry-Pérot laser diode is demonstrated. A beat tone corresponding to the free spectral range is generated on the UTC-PD, and radiated by a transverse-electromagnetic-horn antenna. A terahertz signal at a frequency of 372 GHz, featuring a linewidth of 17 MHz is recorded by a subharmonic mixer coupled to an electrical spectrum analyzer. All components involved in this experiment operate at room temperature. The linewidth and the frequency of the emitted terahertz wave are analyzed, along with their dependency on dc-bias conditions applied to laser diode.
Original languageEnglish
Pages (from-to)241106
JournalApplied Physics Letters
Volume96
Issue number24
DOIs
Publication statusPublished - 1 Jun 2010
Externally publishedYes

Keywords

  • Fabry-Perot interferometers
  • horn antennas
  • microwave photonics
  • photodiodes
  • semiconductor lasers
  • signal generators
  • terahertz wave generation
  • Photodiodes
  • phototransistors
  • photoresistors
  • Semiconductor lasers
  • laser diodes
  • Radiowave and microwave technology

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