Sub-80 fs dissipative soliton large-mode-area fiber laser

Friedrich-Schiller-University Jena, Institute of Applied Physics, Albert-Einstein-Strasse 15, 07745 Jena, Germany.
Optics Letters (Impact Factor: 3.29). 07/2010; 35(13):2311-3. DOI: 10.1364/OL.35.002311
Source: PubMed


We report on high-energy ultrashort pulse generation from an all-normal-dispersion large-mode-area fiber laser by exploiting an efficient combination of nonlinear polarization evolution (NPE) and a semiconductor-based saturable absorber mode-locking mechanism. The watt-level laser directly emits chirped pulses with a duration of 1 ps and 163 nJ of pulse energy. These can be compressed to 77 fs, generating megawatt-level peak power. Intracavity dynamics are discussed by numerical simulation, and the intracavity pulse evolution reveals that NPE plays a key role in pulse shaping.

Download full-text


Available from: Caroline Lecaplain,
  • Source
    • "Therefore, the timebandwidth product is 31.5, showing that the DSs are chirped, a typical feature of the DSs. It is well known that large-chirped DS pulses can be strongly compressible outside the cavity (e.g. using a transmission grating pair [10], [11]). Because of the lack of required devices, we did not carry out the continuous pulse compression versus compensating dispersion. "
    [Show abstract] [Hide abstract]
    ABSTRACT: We propose and demonstrate multiwavelength dissipative soliton (DS) generation in an all-normal-dispersion ytterbium-doped fiber laser based on a graphene-deposited tapered fiber (GDTF) device. Due to the interaction of the graphene with the evanescent field on the taper, the GDTF device possesses the characteristics of both saturable absorption and polarizing effect. Therefore, this device not only initiates the mode-locking operation based on the saturable absorption, but also induces both the special spectral filtering and nonlinear polarization evolution for shaping pulses into DSs. Simultaneous triple-wavelength DS operation around 1035 nm is thus achieved with a pulse energy of 6.4 nJ and pulse duration of 74.6 ps. Moreover, the DS operation is very stable with an RF signal-to-noise ratio of 62.5 dB.
    IEEE Photonics Technology Letters 09/2012; 24(17):1539. DOI:10.1109/LPT.2012.2208100 · 2.11 Impact Factor
  • Source
    • "The birefringent filtering effect, intrinsic to NPE lasers [11], [12], is not present in our laser, due to the PM cavity, thus does not contribute to pulse shaping, in contrast to Refs. [11], [12]. In addition, although our gain bandwidth is larger than Ref. [10], our laser produces a stable, polarized short pulse output, without need of discrete filtering, in a simple, compact all-fiber configuration, where the gain dispersion is the dominant spectral limitation. "
    [Show abstract] [Hide abstract]
    ABSTRACT: We demonstrate gain-guided dissipative soliton operation of a linearly polarized Yb-doped fiber laser, mode-locked by carbon nanotubes. In the regime of low nonlinear phase shift per cavity roundtrip, a dissipative soliton pulse can be supported by the finite gain bandwidth, without the need for strong spectral selection. The gain-guiding dynamics are confirmed by simulations.
    IEEE Photonics Journal 06/2012; 4(3-3):1058-1064. DOI:10.1109/JPHOT.2012.2202314 · 2.21 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: We report on a systematic study of an environmentally stable mode-locked Yb-doped fiber laser operating in the chirped-pulse regime. The linear cavity chirped-pulse fiber laser is constructed with a saturable absorber mirror as nonlinear mode-locking mechanism and a nonlinearity-free transmission-grating-based stretcher/compressor for dispersion management. Mode-locked operation and pulse dynamics from strong normal to strong anomalous total cavity dispersion in the range of +2.5 to −1.6 ps2 is experimentally studied. Strongly positively chirped pulses from 4.3 ps (0.01 ps2) to 39 ps (2.5 ps2) are obtained at normal net-cavity dispersion. In the anomalous dispersion regime, the laser generates average soliton feature negatively chirped pulses with autocorrelation pulse durations from 0.8 ps (−0.07 ps2) to 3.9 ps (−1.6 ps2). The lowered peak power due to the pulse stretching allows one to increase the double pulse threshold. Based on the numerical simulation, different regimes of mode locking are obtained by varying the intra-cavity dispersion, and the characteristics of average soliton, stretched-pulse, wave-breaking-free and chirped-pulse regimes are discussed.
    Applied Physics B 05/2012; 107(2). DOI:10.1007/s00340-012-5010-0 · 1.86 Impact Factor
Show more