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
Ribenek, V. A.; Korobko, D. A.; Fotiadi, A. A.; Taylor, J. R. (2022-09-30)
V. A. Ribenek, D. A. Korobko, A. A. Fotiadi, and J. R. Taylor, "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," Opt. Lett. 47, 5236-5239 (2022)
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https://urn.fi/URN:NBN:fi-fe2023022027827
Tiivistelmä
Abstract
We report on new 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 narrow-band continuous wave (CW) component cooperatively generated within the same laser cavity. In contrast to our recent findings [Opt. Lett. 46, 5747 (2021) and Opt. Lett. 46, 5687 (2021)], 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.
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