65-fs Yb:CaF_2 laser mode-locked by semiconductor saturable absorber mirror

Pirzio, Federico; Cafiso, Samuele Davide Di Dio; Kemnitzer, M.; Kienle, Florian; Guandalini, A.; Au, J. Aus der; Agnesi, Antonio

doi:10.1364/josab.32.002321

Cited by 23 publications

(16 citation statements)

References 10 publications

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“…6. Previously, Yb-based bulk lasers delivering watt-level sub-100 fs pulses have been reported only with a few kinds of gain media, such as Yb:CaF 2 [5,22], Yb:CGA [8,12,13], Yb:KYW [23], Yb:KGW [4,6,24], and Yb:Lu 2 O 3 [25] crystals as well as Yb:LuAG ceramic [1]. Among them, Yb:CGA crystal provides not only the highest peak power as well as average output power but also the shortest pulse duration.…”

Section: Resultsmentioning

confidence: 99%

“…High-power femtosecond lasers have versatile applications in industrial, medical, and scientific researches and have long attracted a wide range of investigations. In the near-infrared band, Yb-doped active mediums are well known as optimal alternatives in this aspect, and various kinds of Yb-doped materials have been reported [1][2][3][4][5][6][7][8]. Among them, Yb-doped CaGdAlO 4 (shorted as Yb:CGA or Yb:CALGO) is one of the most attractive candidates due to its excellent spectroscopic and thermal properties [9].…”

Section: Introductionmentioning

confidence: 99%

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Diode-pumped power scalable Kerr-lens mode-locked Yb:CYA laser

et al. 2018

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Stable 68 fs pulses with the average power of 1.5 W is directly generated from a multimode diode-pumped Kerr-lens mode-locked Yb:CYA laser by separating the gain medium and Kerr medium. The repetition rate is about 50 MHz, resulting in a single pulse energy of 30 nJ and a peak power of 0.44 MW. To the best of our knowledge, this is the highest single pulse energy ever produced from a mode-locked Yb:CYA oscillator. Our experimental results show that Yb:CYA crystal is an excellent candidate for multiwatt, sub-100 fs pulse generation in diode-pumped all-solid-state lasers. It is believed that the output power can be scalable to multi-W while the pulse duration is maintained with this simple method.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Diode-pumped power scalable Kerr-lens mode-locked Yb:CYA laser

et al. 2018

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“…Therefore, the use of commercially available laser diodes for direct diode pumping is a desired feature due to the reduced cost and complexity of the laser system. A diode-pumped SESAM mode-locked Yb:CaF2 laser was also demonstrated, delivering 87 fs pulses with 1.4 W of output power [11]. A new laser crystal, Yb 3+ :Lu2O3, with thermal conductivity of 11 W/m/K and emission bandwidth of 13 nm has also shown its potential in this regime [36].…”

Section: Resultsmentioning

confidence: 99%

“…The Yb-ion based laser oscillators are well suited for this task. The generation of watt-level sub-100 femtosecond laser pulses directly from Yb-doped bulk crystal lasers has been reported for Yb:KGW [5][6][7], Yb:CALGO [8,9], Yb:CaF2 [10][11][12] and Yb 3+ :Lu2O3 [13] gain media. Such a performance of a mode-locked laser is feasible owing to the propitious properties of Yb-ion crystals, including a fairly broad gain bandwidth, absorption properties suitable for a diode pumping, an absence of parasitic losses and a tolerable level of thermo-optical effects [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Diode-pumped ultrafast Yb:KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking

2017

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A high power sub-60 fs mode-locked diodepumped Yb:KGW laser based on hybrid action of an InGaAs quantum-dot saturable absorber mirror and Kerr-lens mode locking was demonstrated. The laser delivered a 56 fs pulse with 1.95 W of average power corresponding 450 kW of peak power. The width of the generated laser spectrum was 20.5 nm, which was near the gain bandwidth limit of the Yb:KGW crystal. To the best of our knowledge, these are the shortest pulses generated from the monoclinic double tungstate crystals (and Yb:KGW laser crystal in particular) and the most powerful in the sub-60 fs regime. At the same time, they are also the shortest pulses produced to date with the help of a quantum-dot-based saturable absorber. High power operation with a pulse duration of 90 fs and 2.85 W of average output power was also demonstrated.

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“…Higher power oscillator can be designed as already reported [13,14], but these require careful consideration of the markedly different thermal properties of the crystals investigated, generally trading off pulse width and output power. Furthermore, for seeding regenerative amplifiers a relatively modest power level is sufficient, which is also true for imaging applications.…”

Section: Introductionmentioning

confidence: 99%

Ultrafast, solid-state oscillators based on broadband, multisite Yb-doped crystals

Pirzio¹,

Kemnitzer²,

Guandalini³

et al. 2016

Opt. Express

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A detailed performance comparison of new interesting Yb-doped crystals in the same oscillator setup, with single-mode fiber-coupled diode laser pump is reported. We intended to assess the shortest pulses achievable with available SESAM technology, running a fair comparison with laser crystals Yb:KLuW, Yb:SSO, Yb:CALGO, Yb:CALYO and Yb:CaF₂, very likely including the most promising choices for the next generation of commercial bulk ultrafast solid-state systems.

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65-fs Yb:CaF_2 laser mode-locked by semiconductor saturable absorber mirror

Cited by 23 publications

References 10 publications

Diode-pumped power scalable Kerr-lens mode-locked Yb:CYA laser

Diode-pumped power scalable Kerr-lens mode-locked Yb:CYA laser

Diode-pumped ultrafast Yb:KGW laser with 56 fs pulses and multi-100 kW peak power based on SESAM and Kerr-lens mode locking

Ultrafast, solid-state oscillators based on broadband, multisite Yb-doped crystals

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