Mode-locked Yb-doped fiber laser emitting broadband pulses at ultralow repetition rates

Bowen, Patrick; Erkintalo, Miro; Provo, Richard; Harvey, J.D.; Broderick, Neil G. R.

doi:10.1364/ol.41.005270

Cited by 26 publications

(6 citation statements)

References 30 publications

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“…Recent work has also considered the concept of nonlinearity management: carefully positioning long fibre sections to exploit, but not overdrive, nonlinear effects: achieving sub-MHz repetition rates with bandwidths supporting gratingbased compression to <300 fs [100].…”

Section: ∼1mentioning

confidence: 99%

Dispersion engineering of mode-locked fibre lasers

Woodward

2018

J. Opt.

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Mode-locked fibre lasers are important sources of ultrashort pulses, where stable pulse generation is achieved through a balance of periodic amplitude and phase evolutions. A range of distinct cavity pulse dynamics have been revealed, arising from interplay between dispersion and nonlinearity in addition to dissipative processes such as filtering. This has led to the discovery of numerous novel operating regimes, offering significantly improved laser performance. In this Topical Review, we summarise the main steady-state pulse dynamics reported to date through cavity dispersion engineering, including average solitons, dispersion-managed solitons, dissipative solitons, giant-chirped pulses and similaritons. Characteristic features and the stabilisation mechanism of each regime are described, supported by numerical modelling, in addition to the typical performance and limitations. Opportunities for further pulse energy scaling are discussed, in addition to considering other recent advances including automated self-tuning cavities and fluoride-fibre-based mid-infrared mode-locked lasers.

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Section: ∼1mentioning

confidence: 99%

Dispersion engineering of mode-locked fibre lasers

Woodward

2018

J. Opt.

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“…Compared with nonlinear polarization evolution (NPE), NALM has the advantage of mode-locking stability and lower intrinsic noise since it does not rely on polarization rotation and can be implemented in PM format [ 5 , 6 , 7 , 8 ]. In spite of the simplicity and stability, a fatal shortcoming for lasers based on NALM is their poor self-started ability [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Generation of 99.8 fs, 25 kW Peak-Power, Dispersion-Managed Pulses Directly from an Yb-Doped Figure-of-9 Fiber Laser

Yuan

Chen

et al. 2022

Materials

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We reported on the generation of 99.8 fs, 25 kW peak-power, dispersion-managed pulses directly from a passively mode-locked Yb-fiber laser oscillator with a figure-of-9 configuration. The introduction of strongly injected pump power and optical components with a high damage threshold enables high-power operation, while the polarization-maintaining (PM) fiber supports environmentally stable self-started mode-locking. Mode-locking in the soliton-like and negative-dispersion regime is characterized by the dispersion management via tuning the separation distances between a pair of gratings inside the cavity. The oscillator generates stable pulses with up to 40.10 mW average power at a 16.03 MHz repetition rate, corresponding to a pulse energy of 2.5 nJ. To the best of our knowledge, it is the highest peak-power directly obtained by a laser oscillator with a figure-of-9 configuration.

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“…Recently, the nonlinear optical amplifying loop mirror (NALM) attracted a lot of interests again, because those lasers can be made of all-PM fiber and is more stable [15][16][17][18][19][20]. Broderick group has reported an all normal dispersion (ANDi) fiber laser mode-locked with a NALM at 506 kHz repetition rate by positioning two long fiber sections in the ring cavity carefully [21]. In our previous work, we demonstrated a 448 kHz oscillator with only one section long PM fiber in the main loop [22].…”

Section: Introductionmentioning

confidence: 99%

140 kHz, 1.2 ps pulses from an all-PM Yb-doped fiber master oscillator-power amplifier

Liu¹,

Liu²,

Zhao³

et al. 2021

Laser Phys.

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We report on an environmentally stable mode-locked all polarization maintaining fiber laser with a nonlinear amplifying loop mirror (NALM) at a ultralow repetition rate. Experimentally, using different cavity lengths we have achieved stable mode-locking at different repetition rates. By carefully adjusting the length of the total fiber of NALM, we achieve stable broadband pulse trains with a repetition rate as low as 140 kHz. The pulses can be further amplified up to 27 µJ and compressed down to 1.16 ps. The laser system has potential application for industrial application.

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Mode-locked Yb-doped fiber laser emitting broadband pulses at ultralow repetition rates

Cited by 26 publications

References 30 publications

Dispersion engineering of mode-locked fibre lasers

Dispersion engineering of mode-locked fibre lasers

Generation of 99.8 fs, 25 kW Peak-Power, Dispersion-Managed Pulses Directly from an Yb-Doped Figure-of-9 Fiber Laser

140 kHz, 1.2 ps pulses from an all-PM Yb-doped fiber master oscillator-power amplifier

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