Femtosecond Yb:YCOB laser pumped by narrow-stripe laser diode and passivelymodelocked using ion implanted saturable-absorber mirror

Valentine, G.J.; Kemp, Alan J.; Birkin, D.J.L.; Burns, D.; Balembois, François; Georges, Patrick; Bernas, H.; Aron, A.; Aka, G.; Sibbett, W.; Brun, Alain; Dawson, Martin D.; Bente, E.A.J.M.

doi:10.1049/el:20001141

Cited by 30 publications

(7 citation statements)

References 5 publications

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“…Some borate materials show wide gain spectra for the generation of short pulses [83][84][85]. Initial modelocking experiments with Yb:YCOB resulted in a pulse duration of 270 fs at a moderate average output power of 2 W. In this case, anisotropic thermal aberrations made obtaining fundamental mode operation difficult at higher power levels [70].…”

Section: State-of-the Art and Recent Experimental Resultsmentioning

confidence: 99%

Cutting-Edge High-Power Ultrafast Thin Disk Oscillators

et al. 2013

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A growing number of applications in science and industry are currently pushing the development of ultrafast laser technologies that enable high average powers. SESAM modelocked thin disk lasers (TDLs) currently achieve higher pulse energies and average powers than any other ultrafast oscillator technology, making them excellent candidates in this goal. Recently, 275 W of average power with a pulse duration of 583 fs were demonstrated, which represents the highest average power so far demonstrated from an ultrafast oscillator. In terms of pulse energy, TDLs reach more than 40 μJ pulses directly from the oscillator. In addition, another major milestone was recently achieved, with the demonstration of a TDL with nearly bandwidth-limited 96-fs long pulses. The progress achieved in terms of pulse duration of such sources enabled the first measurement of the carrier-envelope offset frequency of a modelocked TDL, which is the first key step towards full stabilization of such a source. We will present the key elements that enabled these latest results, as well as an outlook towards the next scaling steps in average power, pulse OPEN ACCESSAppl. Sci. 2013, 3 356 energy and pulse duration of such sources. These cutting-edge sources will enable exciting new applications, and open the door to further extending the current performance milestones.

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Section: State-of-the Art and Recent Experimental Resultsmentioning

confidence: 99%

Cutting-Edge High-Power Ultrafast Thin Disk Oscillators

et al. 2013

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“…The first mode-locked Yb:YCOB laser delivered a modest pulse duration of 210 fs. [23] Recently, 42-fs pulses have been generated in a Yb:YCOB crystal, [24] with external compression pluses as short as 35 fs were reported at 1055 nm. [25] However, such short pulse duration relies on critical cavity alignment with the assistance of the Kerr-lens effect.…”

Section: Introductionmentioning

confidence: 99%

Diode-pumped self-starting mode-locked femtosecond Yb:YCa ₄ O(BO ₃ ) ₃ laser

et al. 2014

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A self-starting mode-locked femtosecond laser is accomplished with an oxoborate self-frequency doubling crystal Yb:YCa 4 O(BO 3 ) 3 (Yb:YCOB) as the gain medium and a semiconductor mirror as the saturable absorber. Pumped by a 976-nm fiber-coupled diode laser with 50-µm core diameter, stable mode-locked laser pulses up to 430 mW were obtained at a repetition rate of 83.61 MHz under 5-W pump power. The autocorrelation measurement shows that the pulse duration is as short as 150 fs by assuming the sech 2 pulse shape at a central wavelength of 1048 nm. This work has demonstrated a compact and reliable femtosecond laser source for prospective low-cost applications.

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“…Compared with Nd 3+ -doped materials, Yb 3+ -doped crystals exhibit very broadband fluorescence, which allows tunability and/or ultra-short pulse generation, and the low material dispersion allows a narrower pulse width under mode-locked operation. Several Yb 3+ -doped femtosecond mode-locked lasers have been demonstrated in recent years by the use of semiconductor saturable-absorber mirrors (SESAM) or Kerr lens mode-locking mechanisms [1][2][3] . Table 1 lists the parameters of selected Yb 3＋ doped crystals and the corresponding laser specifications [4][5][6][7] .…”

Section: Introductionmentioning

confidence: 99%