Generation of Sub-50 fs Pulses With &gt;1.5 MW of Peak Power From a Diode-Pumped Yb:CALGO Laser Oscillator

Manjooran, Sujith

doi:10.1364/cleo_at.2016.jtu5a.82

Cited by 26 publications

(13 citation statements)

References 6 publications

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“…At the same time, using a more broadband emission with the Ng-polarisation of Yb:KGW [47] or gain media such as Yb:CALGO will be also beneficial. Our preliminary KLAS mode locking results with this crystal indicate that the generation of powerful sub-50 fs pulses is possible [48] and will be the subject of future publication. The use of a lower output coupling to reduce the gain [49] can be another route to shorter pulses albeit at the price of a lower output power.…”

Section: Resultsmentioning

confidence: 85%

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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Section: Resultsmentioning

confidence: 85%

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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“…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%

“…Due to the high brightness as well as excellent polarization property of the fiber laser, as short as 40 fs pulses with 1.1 W average power were obtained. Most recently, Manjooran and Major reported on the direct generation of sub-50 fs pulses with >1.5 MW peak power from a diode-pumped Yb:CGA laser, which is the highest-peak-power diode-pumped bulk laser oscillator in the sub-50-fs category [13].…”

Section: Introductionmentioning

confidence: 99%

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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“…7. Summary of the state-of-art results from Yb-based bulk lasers in generating sub-100 fs pulses with watt level output power [12][13][14][15][16][17][18][19][20][21][22][23][24].…”

Section: Resultsmentioning

confidence: 99%

“…Because such a laser demands the Yb-doped gain medium with not only a flat emission spectrum of sufficiently broad bandwidth but also excellent thermal conductivity to suppress the thermal lensing. Currently, Yb-based femtosecond lasers delivering watt-level sub-100 fs pulses have been reported only in a few kinds of crystals such as Yb:CaF 2 [12][13][14], Yb:CGA [15][16][17], Yb:CYA [18], Yb:KGW [19][20][21], Yb:KYW [22], Yb:YVO 4 [22], and Yb:Lu 2 O 3 [23] as well as Yb:LuAG ceramic [24]. Apart these materials, the family of Yb doped oxyorthosilicates [25] (including Yb:GSO, Yb:LSO, Yb:YSO, Yb:GYSO and Yb:LYSO crystals) are also promising candidates for producing sub-100 fs pulses with watt level average power, due to their broad emission spectra as well as excellent thermal conductivities as summarized in Fig.…”

Section: Introductionmentioning

confidence: 99%

High power sub 100-fs Kerr-lens mode-locked Yb:YSO laser pumped by single-mode fiber laser

et al. 2018

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We report on a Kerr-lens mode-locked Yb:YSO lasers for the first time. Pumped by a single-mode fiber laser with high brightness and linear polarization, the Yb:YSO laser can deliver as high as 2 W average power with as short as 95 fs pulse duration at the repetition rate of 137.2 MHz, resulting in the single pulse energy of 14.8 nJ and the peak power of 155.7 kW. This work proves the potential on generation of sub-100 fs pulses with multi-watt level average power with the Yb doped oxyorthosilicates crystals.

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Generation of Sub-50 fs Pulses With >1.5 MW of Peak Power From a Diode-Pumped Yb:CALGO Laser Oscillator

Cited by 26 publications

References 6 publications

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

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

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

High power sub 100-fs Kerr-lens mode-locked Yb:YSO laser pumped by single-mode fiber laser

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