Supermode noise mitigation and repetition rate control in a harmonic mode-locked fiber laser implemented through the pulse train interaction with co-lased CW radiation

We report on new, to the best of our knowledge, techniques enabling both the mitigation of supermode laser noise and highly precise setting of the pulse repetition rate (PRR) in a soliton harmonically mode-locked (HML) fiber laser employing nonlinear polarization evolution (NPE). The principle of op...

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Bibliographic Details
Published in:Optics letters 2022-10, Vol.47 (19), p.5236-5239
Main Authors: Ribenek, V. A., Korobko, D. A., Fotiadi, A. A., Taylor, J. R.
Format: Article
Language:English
Subjects:
Continuous radiation
Fiber lasers
Laser mode locking
Narrowband
Pulse repetition rate
Resonant interactions
Solitary waves
Tunable lasers
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Summary:We report on new, to the best of our knowledge, techniques enabling both the mitigation of supermode laser noise and highly precise setting of the pulse repetition rate (PRR) in a soliton harmonically mode-locked (HML) fiber laser employing nonlinear polarization evolution (NPE). The principle of operation relies on resonant interaction between the soliton pulses and a narrowband continuous wave (CW) component cooperatively generated within the same laser cavity. In contrast to our recent findings [ Opt. Lett. 46 , 5747 ( 2021 ) 10.1364/OL.441630 and Opt. Lett. 46 , 5687 ( 2021 ) 10.1364/OL.443042 ], the new methods are implemented through the specific adjustment of the HML laser cavity only and do not require the use of an external tunable CW laser source.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.472780