Geometrical description of the onset of multi-pulsing in mode-locked laser cavities

Li, Feng; Wai, P.K.A.; Kutz, J. Nathan

doi:10.1364/josab.27.002068

Cited by 103 publications

(127 citation statements)

References 19 publications

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“…As was demonstrated, the nonlinear gain and loss can result per se in a chaotic pulse dynamics [28]. In our work, a source of chaotic behavior is interpreted as a CDS resonance with dispersive waves excited by TOD.…”

Section: Resultssupporting

confidence: 60%

Chaotic chirped-pulse oscillators

Sorokin¹,

Tolstik²,

Калашников³

et al. 2013

Opt. Express

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Abstract:We present results of experimental investigation of the chaotic and quasi-periodic regime in the chirped-pulsed (dissipative soliton) Cr:ZnS and Cr:ZnSe mid-IR oscillators with significant third-order dispersion. The instability develops when the spectrum edge approaches resonance with a linear wave either due to power increase or by dispersion adjustment. In practice, this occurs when the spectrum edge reaches zero dispersion wavelength. The analysis suggests a three-oscillator chaos model, which is confirmed by numerical simulations. The regime is long-term stable and can be easily overlooked in similar systems. We show that chaotic regime is accompanied by a characteristic spectral shape and can be reliably recognized by using wavelength-skewed filters and by second-harmonic or two-photon absorption detectors.

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Section: Resultssupporting

confidence: 60%

Chaotic chirped-pulse oscillators

Sorokin¹,

Tolstik²,

Калашников³

et al. 2013

Opt. Express

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“…However, the design and optimization of high-performance fiber devices is impeded by the so-called multi-pulsing instability (MPI) which ultimately imposes a fundamental limitation on a single mode-locked pulse energy [10][11][12][13]. To compete directly with solid state technologies, the final order-of-magnitude increase in energy is still required, thus making it critical to understand the limiting effects o f the MPI and potential methods for suppressing it.…”

Section: Introductionmentioning

confidence: 99%

Dual transmission filters for enhanced energy in mode-locked fiber lasers

Li¹,

Ding²,

Kutz³

et al. 2011

Opt. Express

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We theoretically demonstrate that in a laser cavity mode-locked by a set of waveplates and passive polarizer, the energy performance can be increased by incorporating a second set of waveplates and polarizer in the cavity. The two nonlinear transmission functions acting in combination can be engineered so as to suppress the multi-pulsing instability responsible for limiting the single pulse per round trip energy in a myriad of mode-locked cavities. In a single parameter sweep, the energy is demonstrated to double. It is anticipated that further engineering and optimization of the transmission functions by tuning the eight waveplates, fiber birefringence, two polarizers and two lengths of transmission fiber can lead to further significant increases. Moreover, the analysis suggests a general design and engineering principle that can potentially realize the goal of making fiber based lasers directly competitive with solid state devices. The technique is feasible and easy to implement without requiring a new cavity design paradigm.

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“…But for the moment, we will consider the average birefringence to be fixed at some unknown value. Interestingly, the method advocated here may be the only reasonable way of training a multiple NPR laser cavity, let's say N of them, to achieve optimal, high-power performance [22][23][24].…”

Section: Machine Learning and Pattern Recognitionmentioning

confidence: 99%

Intelligent Systems for Stabilizing Mode-Locked Lasers and Frequency Combs: Machine Learning and Equation-Free Control Paradigms for Self-Tuning Optics

Kutz

Brunton

2015

Nanophotonics

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Abstract:We demonstrate that a software architecture using innovations in machine learning and adaptive control provides an ideal integration platform for self-tuning optics. For mode-locked lasers, commercially available optical telecom components can be integrated with servocontrollers to enact a training and execution software module capable of self-tuning the laser cavity even in the presence of mechanical and/or environmental perturbations, thus potentially stabilizing a frequency comb. The algorithm training stage uses an exhaustive search of parameter space to discover best regions of performance for one or more objective functions of interest. The execution stage first uses a sparse sensing procedure to recognize the parameter space before quickly moving to the near optimal solution and maintaining it using the extremum seeking control protocol. The method is robust and equationfree, thus requiring no detailed or quantitatively accurate model of the physics. It can also be executed on a broad range of problems provided only that suitable objective functions can be found and experimentally measured.

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Geometrical description of the onset of multi-pulsing in mode-locked laser cavities

Cited by 103 publications

References 19 publications

Chaotic chirped-pulse oscillators

Chaotic chirped-pulse oscillators

Dual transmission filters for enhanced energy in mode-locked fiber lasers

Intelligent Systems for Stabilizing Mode-Locked Lasers and Frequency Combs: Machine Learning and Equation-Free Control Paradigms for Self-Tuning Optics

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