50 fs pulses from an all-normal dispersion erbium fiber oscillator

Chichkov, Nikolai B.; Hausmann, Katharina; Wandt, Dieter; Morgner, Uwe; Neumann, Jörg; Kracht, Dietmar

doi:10.1364/ol.35.003081

Cited by 23 publications

(10 citation statements)

References 8 publications

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“…The behavior of the laser agrees reasonably well with numerical simulations, and this kind of laser offers a combination of short, high-energy pulses that is among the best reported for Er fiber lasers [8,9]. Stable pulses are generated with energy as high as 3.5 nJ, and they can be dechirped to 70 fs duration.…”

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confidence: 71%

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Self-similar erbium-doped fiber laser with large normal dispersion

Liu

Lamb

et al. 2014

Opt. Lett.

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supporting

confidence: 71%

“…Even accounting for the energy in the pedestal, the peak power could be very high. With efficient gratings for dechirping, this kind of laser should reach 40 kW peak power, which would be the highest achieved by a femtosecond Er fiber laser to our knowledge [8,9]. …”

mentioning

confidence: 99%

Self-similar erbium-doped fiber laser with large normal dispersion

Liu

Lamb

et al. 2014

Opt. Lett.

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“…This combination of the pulse parameters represents the shortest duration and the high- est energy pulses generated so far in all-fiber Erbium oscillators, at least in publications containing necessary pulse characterisation (interferometric autocorrelation traces, radio-frequency (RF) beat signal etc.). Schemes with NPE mode-locking realized with bulk optics elements provide much better combination of the pulse parameters [24][25][26], specifically 10 nJ, 75 fs.…”

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confidence: 99%

All-fiber highly chirped dissipative soliton generation in the telecom range

et al. 2017

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A high-energy (0.93 nJ) all-fiber Erbium femtosecond oscillator operating in the telecom spectral range is proposed and realized. The laser cavity built of commercially available fibers and components combines non-PM and PM parts providing stable generation of highly-chirped (chirp parameter 40) pulses compressed in an output piece of standard PM fiber to 165 fs. The results of numerical simulation agree well with experiment. The analyzed intracavity pulse dynamics enables the classification of the generated pulses as dissipative solitons. © http://dx.doi.org/10.1364/ao.XX.XXXXXX Recent progress in the development of high-power femtosecond fiber lasers operating around 1 µm, based on the highlychirped dissipative solitons (HCDS) generated in all-normal dispersion (ANDi) laser cavities [1][2][3] paved the way for the transfer and expansion of this technology into other spectral regions. The first natural candidate would be the telecom window (∼1.5 micron), where high power mode-locked fiber lasers have a wide range of practical applications, from CARS spectroscopy [4] to few-cycle pulse synthesis [5], terahertz-wave generation [6], frequency metrology [7,8] and, of course, telecommunications [9]. The advantage of this spectral interval is the availability of various low cost telecom components that might make such lasers commercially attractive.For the most of practical applications, long-term stability and reliability as well as output power, pulse duration and output beam quality are five important laser characteristics. From this point of view, all-fiber lasers have advantages due to their compactness, relative simplicity of the schemes, high efficiency and perfect beam quality. There is though one quite important weakness -a polarization state that is undefined in standard single-mode fibers (SMFs) leading to uncontrollable variation with the changing environment, especially in a long enough fiber cavity. Polarization maintaining (PM) fibers are widely used to mitigate this problem. As a result, 150 fs, 25 pJ pulses were demonstrated recently in an all-fiber all-PM Erbium laser with graphene saturable absorber (GSA) operated in the anomalous net dispersion regime [10]. Slightly higher energy (44 pJ) for 174 fs pulses was demonstrated previously in non-PM cavity with GSA [11]. Another type of saturable absorber, topological insulator (TI) was also successfully demonstrated in an all-fiber configuration resulting in 130-fs 45-pJ pulses [12].Further energy up-scaling became possible by realizing the HCDS in the normal net dispersion regime, one of the most advanced ways to generate high-energy femtosecond pulses in mode-locked oscillators demonstrated so far, see review [13]. We have studied the HCDS regime earlier [14], showing an essential result used in the current publication, namely that the numerical simulations and analytical solution in the high chirp limit ( f 1) agree well at f > 10. The HCDS regime was experimentally demonstrated for the first time in Ytterbium [15] and Erbium fiber oscillators [16...

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“…From this controlled point, the cavity can be optimized for performance. For instance, short pulses or high energies can be obtained with low [19] or high [20] dispersion cavities respectively. A preliminary optimization for short pulses is demonstrated in Figure 6.…”

Section: Resultsmentioning

confidence: 99%

High power dissipative soliton laser using chirally-coupled core fiber

et al. 2011

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We report the energy scaling of mode-locked fiber lasers using a large-mode area chirally-coupled core fiber. This is a demonstration of the scaling of ultrafast fiber oscillators to large cores in an all-solid glass package that holds the lowest order fiber mode while maintaining compatibility with fiber fusion technology. An all-normal dispersion cavity design yields pulse energies above 40 nJ that dechirp to durations below 200 fs. Using lower net dispersion, pulses dechirping close to 100 fs are obtained with pump limited energies. Effectively single-mode operation is confirmed by beam quality as well as spectral interference measurements.

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50 fs pulses from an all-normal dispersion erbium fiber oscillator

Cited by 23 publications

References 8 publications

Self-similar erbium-doped fiber laser with large normal dispersion

Self-similar erbium-doped fiber laser with large normal dispersion

All-fiber highly chirped dissipative soliton generation in the telecom range

High power dissipative soliton laser using chirally-coupled core fiber

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