80-200GHz erbium doped fibre laser using a rational harmonic mode-locking technique

E. Yoshida, M. Nakazawa

Research output: Contribution to journalArticlepeer-review

143 Citations (Scopus)


Pulse trains with repetition rates as high as 80-200GHz were obtained at 1.55μm, using rational harmonic mode-locking with an erbium doped fibre laser. A fundamental repetition frequency (fosc) of 40GHz was first generated by applying a 40GHz modulation frequency to an LN intensity modulator in the fibre cavity, in which the longitudinal mode spacing (Δf) was 1.5MHz. By rationally detuning the modulation frequency by Δf/n, the authors succeeded in obtaining a repetitive oscillation of (nfosc++Δf). The maximum frequency was 200GHz, at which n corresponds to 5.

Original languageEnglish
Pages (from-to)1370-1372
Number of pages3
JournalElectronics Letters
Issue number15
Publication statusPublished - 1996 Jul 18
Externally publishedYes


  • Fibre lasers
  • Laser mode locking

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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