Resonance vector mode locking

Stanislav A. Kolpakov, Sergey V. Sergeyev, Yury Loika, Nikita Tarasov, Vladimir Kalashnikov, Govind P. Agrawal

Research output: Other contribution


A mode locked fibre laser as a source of ultra-stable pulse train has revolutionised a wide range of fundamental and applied research areas by offering high peak powers, high repetition rates, femtosecond range pulse widths and a narrow linewidth. However, further progress in linewidth narrowing seems to be limited by the complexity of the carrier-envelope phase control. Here for the first time we demonstrate experimentally and theoretically a new mechanism of resonance vector self-mode locking where tuning in-cavity birefringence leads to excitation of the longitudinal modes sidebands accompanied by the resonance phase locking of sidebands with the adjacent longitudinal modes. An additional resonance with acoustic phonons provides the repetition rate tunability and linewidth narrowing down to Hz range that drastically reduces the complexity of the carrier-envelope phase control and so will open the way to advance lasers in the context of applications in metrology, spectroscopy, microwave photonics, astronomy, and telecommunications.
Original languageEnglish
TypePublication on ArXiv
Media of outputOnline
Number of pages13
Publication statusUnpublished - 23 Aug 2015

Bibliographical note

Funding: Leverhulme Trust (RPG-2014-304); FP7-PEOPLE-2012-IAPP (project GRIFFON, No. 324391) and the West Midlands European Regional Development
Fund (ERDF) project.


  • frequency comb
  • mode locked laser
  • jitter suppression
  • polarisation rotation


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