High-frequency vector harmonic mode locking driven by acoustic resonances

H. J. Kbashi, S. V. Sergeyev, M. Al-araimi, A. Rozhin, D. Korobko, A. Fotiadi

Research output: Contribution to journalArticlepeer-review


A controllable passive harmonic mode locking (HML) in an erbium-doped fiber laser with a soliton pulse shaping using a single-wall carbon nanotube has been experimentally demonstrated. By increasing the pump power and adjusting the in-cavity polarization controller, we reached the 51st-order harmonic (902 MHz) having the output power of 37 mW. We attribute the observed high-frequency HML to the electrostriction effect caused by periodic pulses and leading to excitation of the radial and torsional-radial acoustic modes in the transverse section of the laser. The exited acoustic modes play the role of the bandpass filter, which stabilizes the high-frequency HML regime.
Original languageEnglish
Pages (from-to)5112-5115
Number of pages4
JournalOptics Letters
Issue number21
Early online date17 Oct 2019
Publication statusPublished - 17 Oct 2019

Bibliographical note

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-21-5112. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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