RF or THz signals generated from DC biased multimode lasers

Sylwester Latkowski, Frederic Surre, Pascal Landais

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


Although self pulsating (SP) lasers are DC biased, they feature a modulation of the output power. For the results presented in this paper, the SP frequency corresponds to the frequency spacing between longitudinal modes or its second harmonic. The performances of both a 40 GHz self pulsating distributed Bragg reflector laser and of a 660 GHz slotted laser are presented. For the first laser, the radio frequency (RF) signal was analysed on electrical spectrum analyser and its linewidth was smaller that the sum of the main optical modes, proving a passive modelocking of the mode phases. For the slotted laser, a bolometer interfaced to a FT IR spectrometer is used for the terahertz (THz) detection. A signal 10 times larger than the noise level was measured with this set up. Both lasers have demonstrated to be an easy solution to produce RF or THz signal generator.

Original languageEnglish
Title of host publicationProceedings of 2007 9th International Conference on Transparent Optical Networks, ICTON 2007
Number of pages4
Publication statusPublished - 1 Dec 2007
Externally publishedYes
Event9th International Conference on Transparent Optical Networks (ICTON 2007) - Rome, Italy
Duration: 1 Jul 20075 Jul 2007
Conference number: 9


Conference9th International Conference on Transparent Optical Networks (ICTON 2007)
Abbreviated titleICTON 2007
Internet address


  • Multimode longitudinal spectrum
  • Radio frequency
  • Semiconductor laser
  • Terahertz


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