Generation of 42-fs and 10-nJ pulses from a fiber laser with self-similar evolution in the gain segment

Nie, Bai; Pestov, Dmitry; Wise, Frank W.; Dantus, Marcos

doi:10.1364/oe.19.012074

Cited by 67 publications

(43 citation statements)

References 24 publications

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“…But laser models based on distributed parameters is too qualitative and limited at best because of the assumption that the pulse is near equilibrium when circulating inside the laser cavity. Such models are not effective in describing dispersion managed cavities such as stretched pulse modelocking [64] and similariton mode-locked cavities [65,66] in which the laser pulse undergoes large breathing within one round trip [38,67]. Quantitative modeling of pulse evolution in mode-locked lasers requires the discrete or lump model.…”

Section: Discrete Model Of Laser Cavitiesmentioning

confidence: 99%

“…Moreover, because of the large breathing of the pulse power in the cavity, nonlinear phase accumulation is also reduced effectively which in turn enhances the single pulse energy [47,66]. By adopting selfsimilar propagation in the gain fiber and using a nonlinear fiber after the gain fiber to further extend the spectrum to over the gain bandwidth limit, such lasers have generated pulse duration about 20 fs, which is currently the record of ultrashort pulse fiber lasers [19,27,66]. Detail characterizations of such self-similar fiber lasers can be found in [47] and [84].…”

Section: Self-similar Mode-lockingmentioning

confidence: 99%

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Modeling Frequency Comb Sources

Yuan

Kang

et al. 2016

Nanophotonics

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Frequency comb sources have revolutionized metrology and spectroscopy and found applications in many fields. Stable, low-cost, high-quality frequency comb sources are important to these applications. Modeling of the frequency comb sources will help the understanding of the operation mechanism and optimization of the design of such sources. In this paper, we review the theoretical models used and recent progress of the modeling of frequency comb sources.

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Section: Discrete Model Of Laser Cavitiesmentioning

confidence: 99%

Section: Self-similar Mode-lockingmentioning

confidence: 99%

Modeling Frequency Comb Sources

Yuan

Kang

et al. 2016

Nanophotonics

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“…Our research group has been leading the development of programmable ultrafast laser sources capable of automated pulse characterization and compression [1], controlling nonlinear optical processes [2], and molecule selective coherent anti-Stokes Raman scattering [3,4]. Biomedical imaging, in particular multiphoton multimodal imaging of unstained tissues using ultrashort broad-bandwidth pulses, is a key driving force for this technology [4,5,6,7]. Following a discussion of the technological developments involving pulse shapers and fiber lasers [7,8], applications to depth resolved imaging of blood [7] and unstained tissues including retina and human skin [8] will be presented.…”

Section: Introductionmentioning

confidence: 99%

“…Biomedical imaging, in particular multiphoton multimodal imaging of unstained tissues using ultrashort broad-bandwidth pulses, is a key driving force for this technology [4,5,6,7]. Following a discussion of the technological developments involving pulse shapers and fiber lasers [7,8], applications to depth resolved imaging of blood [7] and unstained tissues including retina and human skin [8] will be presented. …”

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confidence: 99%

Multimodal Biomedical Imaging with Programmable Pulses from a Yb-Fiber Laser

Murashova

Mancuso

Dantus

2017

Optics in the Life Sciences Congress

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Abstract:We present multimodal depth-resolved imaging of unstained tissues using a Yb-fiber laser with a programmable pulse shaper, in the clinically relevant epi-direction. Excitation with sub-40 fs pulses minimizes thermal damage and photobleaching. . Our research group has been leading the development of programmable ultrafast laser sources capable of automated pulse characterization and compression [1], controlling nonlinear optical processes [2], and molecule selective coherent anti-Stokes Raman scattering [3,4]. Biomedical imaging, in particular multiphoton multimodal imaging of unstained tissues using ultrashort broad-bandwidth pulses, is a key driving force for this technology [4,5,6,7]. Following a discussion of the technological developments involving pulse shapers and fiber lasers [7,8], applications to depth resolved imaging of blood [7] and unstained tissues including retina and human skin [8] will be presented. References

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“…RT-MIIPS phase correction: (a) The SHG spectra calculated using the experimental laser spectrum from the home-built Yb-doped fiber laser, described in ref. [2]. A cubic phase mask with the TOD of 100,000 fs 3 is used as a reference mask.…”

mentioning

confidence: 99%

Shaper-based approach to real-time correction of ultrashort pulse phase drifts and transient pulse dispersion measurements

Pestov

Rasskazov

Ryabtsev

et al. 2013

EPJ Web of Conferences

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Abstract. We demonstrate for the first time active dispersion and amplitude correction in a fiber laser producing sub-45 fs pulses. The approach is based on single-shot second and third order dispersion measurement based on multiphoton intrapulse interference. The same principle is applied to obtain time-resolved measurements of the transient dispersion induced by an intense laser pulse on a silica window. PrincipleUltrafast laser systems have proven to be particularly adequate for applications such as material ablation and micromachining, nonlinear spectroscopy and sensing, because of their ability to easily deliver peak power densities of >10 12 W/cm 2 . While these laser sources have experienced great progress in terms of output pulse characteristics, reliability, and size, they are still notoriously complex and sensitive to changes in ambient environment, leading to alignment drifts, deteriorated pulse characteristics, and depreciated performance over time. Applications of femtosecond lasers outside of laser laboratories thus require automated dispersion and amplitude drift compensation in order to maintain optimum performance without human assistance.It is reasonable to assume that such phase drifts would manifest themselves primarily in the second-and sometimes third-order dispersion (SOD and TOD, respectively) of the original pulse waveform. Here we take advantage of the inherent sensitivity of nonlinear optical processes to phase distortions. We apply the concept of multiphoton intrapulse interference phase scan (MIIPS) [1], in order to determine SOD and TOD from changes in the second harmonic generation (SHG) spectrum of the a reference pulse. Intensity drifts are simply measured and corrected by adjusting the pulseshaper transmission (amplitude) mask. This real-time version of MIIPS (RT-MIIPS) scheme can be used for monitoring and correction of pulse energy and peak power drifts, allowing for optimum unattended ultrafast laser performance over an indefinite period of time.The principle behind RT-MIIPS is outlined in Figure 1, where a single local SHG maximum is formed by adding a cubic reference phase mask on an otherwise transform limited pulse. Changes in the magnitude and sign of SOD affect the maximum position within the SHG spectrum. By establishing a one-to-one correspondence between the SHG peak position and the amount of SOD through calibration, one can later accurately measure and correct the change in SOD after acquiring a single SHG spectrum.

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Generation of 42-fs and 10-nJ pulses from a fiber laser with self-similar evolution in the gain segment

Cited by 67 publications

References 24 publications

Modeling Frequency Comb Sources

Modeling Frequency Comb Sources

Multimodal Biomedical Imaging with Programmable Pulses from a Yb-Fiber Laser

Shaper-based approach to real-time correction of ultrashort pulse phase drifts and transient pulse dispersion measurements

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