Dynamics of dispersion managed octave-spanning titanium:sapphire lasers

Sander, Michelle Y.; Birge, Jonathan R.; Benedick, Andrew; Crespo, Helder; Kärtner, Franz X.

doi:10.1364/josab.26.000743

Cited by 23 publications

(23 citation statements)

References 34 publications

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“…In order to investigate properties of femtosecond pulses generated by a Ti:Sapphire laser, we depart from a onedimensional numerical model introduced by Sander et al [13].…”

Section: Modeling Of Pulse Propagation Inside the Cavitymentioning

confidence: 99%

“…1. As described in [13], it is a prism-less femtosecond laser with reduced pulse dispersion in comparison with commonly used femtosecond lasers. We assume that the mirrors in this setup have the required dispersion characteristics to compensate for the pulse dispersion introduced by the cavity elements.…”

Section: Modeling Of Pulse Propagation Inside the Cavitymentioning

confidence: 99%

“…The mirror M1 is transparent to the pump radiation at 500 nm. Following a careful design, Sander reports a pulse duration of 4.9 fs and a bandwidth of 150 THz after external compression of the generated pulse using additional mirrors, plates, and wedges [13].…”

Section: Modeling Of Pulse Propagation Inside the Cavitymentioning

confidence: 99%

“…The focus of this work is to modify the one-dimensional temporal model presented by Sander et al [13] to include the effect of modulation depth of absorption on the main characteristics of the output pulses. To this end, we modify the numerical model of pulse propagation in a Ti:Sapphire crystal presented by Sander et al and compare its performance with the original model.…”

Section: Introductionmentioning

confidence: 99%

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Impact of absorption depth on the characteristics of pulses generated by a Ti:Sapphire femtosecond laser

Rezvani

Shahabadi

2014

2014 Third Conference on Millimeter-Wave and Terahertz Technologies (MMWATT)

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A modified model of fast saturable absorption for approximating the Kerr-lens effect in Ti:Sapphire crystals is introduced and the model performance is compared with that of a one-dimensional temporal model previously proposed by Sander. The model is then used to extract the dynamics of the pulses generated by a typical Ti:Sapphire femtosecond laser. Among the crucial parameters affecting the pulse characteristics, the modulation depth of the approximated saturable absorber, which can be controlled by fabrication process of Ti:Sapphire crystals, is investigated in this work. Index Terms-Femtosecond laser, Kerr-lens effect, fast saturable absorber, modulation depth of an absorber

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“…In order to investigate properties of femtosecond pulses generated by a Ti:Sapphire laser, we depart from a onedimensional numerical model introduced by Sander et al [13].…”

Section: Modeling Of Pulse Propagation Inside the Cavitymentioning

confidence: 99%

Section: Modeling Of Pulse Propagation Inside the Cavitymentioning

confidence: 99%

Section: Modeling Of Pulse Propagation Inside the Cavitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of absorption depth on the characteristics of pulses generated by a Ti:Sapphire femtosecond laser

Rezvani

Shahabadi

2014

2014 Third Conference on Millimeter-Wave and Terahertz Technologies (MMWATT)

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“…They used a relatively simple model for the crystal gain and the frequency dependence of the mirror reflectivity. More recently, Sander et al [24] studied a 1D model, which replaced the threedimensional Ti:sapphire crystal with a one-dimensional model based on the nonlinear Schrödinger equation, but kept the full frequency-dependent response of the mirrors and the full cavity dispersion. Renninger and Wise [25] carried out full simulations that predict the existence and stability of pulses in a Ti:sapphire laser that operates in the normal dispersion regime.…”

Section: Introductionmentioning

confidence: 99%

Spectral Methods for Determining the Stability and Noise Performance of Passively Modelocked Lasers

Menyuk

Wang

2016

Nanophotonics

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Abstract:We describe spectral or dynamical methods that can be used to determine the stability and noise performance of modelocked lasers. We first review methods that have been used to date to theoretically and computationally study passively modelocked lasers, contrasting evolutionary and dynamical approaches and their application to full, averaged, and reduced models. We then develop the spectral methods and show how they can be used to determine the stability and to calculate the timing jitter and power spectral density for any averaged model with any equilibrium pulse shape. We review work that has been done on soliton lasers using soliton perturbation theory from this dynamical perspective, and we contrast the simplicity and generality of our methods to prior work. We close with a discussion of how to extend our approach from averaged models to full models.

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A New Generation of Ultrafast Oscillators for Mid-Infrared Applications

Nagl¹

2021

Springer Theses

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The mid-infrared (MIR) spectral range with wavelengths between 2 µm and 20 µm holds tremendous potential for the study of complex biological systems, given the abundance of intense and unique molecular absorption lines that can be detected. Consequently, spectroscopic applications of mid-infrared radiation have garnered enormous attention in recent years. A particularly striking example is the combination of multi-MHz-repetition-rate, few-cycle MIR light sources with electric-field-resolved techniques, enabling the recording of amplitude-and phase-resolved molecular signals with unparalleled specificity and shot noise limited sensitivity. Despite the ever-growing research demand, their widespread use is severely hampered by the lack of low-noise, compact, and ultrafast laser systems.In this dissertation, a new generation of table-top mid-infrared laser sources is presented, bringing cutting-edge laser diode technology and few-cycle Cr 2+ :ZnS/ZnSe solid-state oscillators together for the first time. Not only have these laser systems proven to reliably provide coherent radiation in the 2 µm to 3 µm region, the simultaneous reduction in size and complexity, accompanied by an improved overall efficiency and -most importantly -noise performance, renders this approach as pioneering for future MIR applications.In total, three laser systems are developed, each of them pushing the frontiers of directly diode-pumped laser technology. The first one is driven by a single-emitter indium phosphide laser diode and delivers more than 500 mW of output power combined with pulse durations as short as 45 fs. With this first ever directly diodepumped Kerr-lens mode-locked (KLM) Cr 2+ :ZnS/ZnSe oscillator, experimental results confirm a highly stable operation. In addition, amplitude noise measurements reveal an excellent low-noise performance of the mode-locked laser output.Driven by the desire to match and exceed the performance of more mature fiber-laser-pumped counterparts and also to boost the efficiency of the envisaged downstream applications, the output of two single-emitter pump laser diodes is carefully combined and implemented into a second-generation design. The achieved peak powers are almost three-times higher compared to before, while the low-noise performance of the KLM output is maintained.xii Typically, the design architecture of laser systems used for generating mid-infrared radiation up to several tens of microns includes a sophisticated chain of amplification, pulse compression and parametric conversion stages. Using a powerful few-cycle mid-infrared oscillator as driving laser source instead not only significantly improves the effectiveness of these nonlinear schemes, but could even supersede the need for initial amplification. The presented third-generation system brings the directly diode-pumped Cr 2+ :ZnS/ZnSe solid-state laser technology to a new level; with output peak powers reaching 1 MW and pulse durations as short as 28 fs, direct generation of CEP-stable mid-infrared pulses in a nonlinear optical cryst...

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Dynamics of dispersion managed octave-spanning titanium:sapphire lasers

Cited by 23 publications

References 34 publications

Impact of absorption depth on the characteristics of pulses generated by a Ti:Sapphire femtosecond laser

Impact of absorption depth on the characteristics of pulses generated by a Ti:Sapphire femtosecond laser

Spectral Methods for Determining the Stability and Noise Performance of Passively Modelocked Lasers

A New Generation of Ultrafast Oscillators for Mid-Infrared Applications

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