Nonlinear amplifying loop mirror

Fermann, M. E.; Haberl, F.; Höfer, Michael; Hochreiter, H.

doi:10.1364/ol.15.000752

Cited by 490 publications

(157 citation statements)

References 12 publications

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“…When nonlinearities are included in the model, the linewidth of the lasing light follows the experimental behavior: the FWHM remains virtually constant or even decreases with increasing pump power. This can be explained by the impact of the nonlinear amplifying mirror (NALM) in the cavity 33 . A NALM is included in the laser configuration, starting at the coupler DC 2 and including the TDF and DC 1 .…”

Section: Bar Crmentioning

confidence: 99%

Isolator-free unidirectional thulium-doped fiber laser

Kharitonov

Brès

2015

Light Sci Appl

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We report the first demonstration of a unidirectional, isolator-free 2-mm thulium-doped fiber (TDF) laser, relying on the properties of the theta cavity (ring resonator with S-shaped feedback). The core pumped theta cavity TDF laser provides sub-Watt output power with a slope efficiency of 25%, a 2 dB flat tuning range of 1900-2050 nm, and a linewidth of 0.2 nm, and achieves the extinction ratio of 18-25 dB (depending on the feedback value) between the favored and suppressed lasing directions. It is shown that these characteristics are competitive with, if not superior to, those of conventional ring cavities. The simulation results of the linear and Kerr-nonlinear theta cavities are also presented, explaining certain unexpected features of the laser behavior and establishing the importance of the doped fiber nonlinearity on the spectral shaping of the emitted signal.

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Section: Bar Crmentioning

confidence: 99%

Isolator-free unidirectional thulium-doped fiber laser

Kharitonov

Brès

2015

Light Sci Appl

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“…The cavity alignment is critical in the KL method, with a tolerable margin within several 100 microns [23]. In fibre lasers, nonlinear polarisation evolution (NPE) and nonlinear optical and amplifying loop mirrors are also used as effective saturable absorber elements [25,26]. However, in these methods, typically, mode-locked lasers should operate close to stability threshold [23] making stable operation challenging.…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotubes for ultrafast fibre lasers

et al. 2016

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Carbon nanotubes (CNTs) possess both remarkable optical properties and high potential for integration in various photonic devices. We overview, here, recent progress in CNT applications in fibre optics putting particular emphasis on fibre lasers. We discuss fabrication and characterisation of different CNTs, development of CNTbased saturable absorbers (CNT-SA), their integration and operation in fibre laser cavities putting emphasis on stateof-the-art fibre lasers, mode locked using CNT-SA. We discuss new design concepts of high-performance ultrafast operation fibre lasers covering ytterbium (Yb), bismuth (Bi), erbium (Er), thulium (Tm) and holmium (Ho)-doped fibre lasers.

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“…Similarly to the nonlinear amplifying loop mirror 28) that is an evolution of a NOLM, another potential improvement that has been suggested to MRs is to combine physical amplification with nonlinear propagation 29) .…”

Section: Introductionmentioning

confidence: 99%