Thermal analysis and efficient high power continuous-wave and mode-locked thin disk laser operation of Yb-doped sesquioxides

Peters, Ralf; Kränkel, Christian; Fredrich-Thornton, Susanne T.; Beil, Kolja; Petermann, K.; Huber, G.; Heckl, Oliver H.; Baer, C. R. E.; Saraceno, Clara J.; Südmeyer, Thomas; Keller, U.

doi:10.1007/s00340-011-4428-0

Cited by 116 publications

(62 citation statements)

References 24 publications

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“…In particular, Yb-doped Lu 2 O 3 offers a very low quantum defect and high absorption cross sections when pumped at the zero phonon line. In combination with the high thermal conductivity of rareearth doped sesquioxides [5] it is thus an ideally suited material for high-power thin disk lasers (TDLs) [6]. With this material 300 W of pump-limited output power at 74 % optical efficiency could be obtained in multimode cw operation corresponding to the highest efficiency of any high-power TDL so far [5].…”

Section: Introductionmentioning

confidence: 99%

“…In combination with the high thermal conductivity of rareearth doped sesquioxides [5] it is thus an ideally suited material for high-power thin disk lasers (TDLs) [6]. With this material 300 W of pump-limited output power at 74 % optical efficiency could be obtained in multimode cw operation corresponding to the highest efficiency of any high-power TDL so far [5]. In addition, the broad emission bandwidth of Yb:Lu 2 O 3 allows for the generation of ultrashort pulse [7] which resulted in pulse durations as short as 738 fs at an average output power as high as 141 W demonstrated in a mode-locked thin disk laser [8].…”

Section: Introductionmentioning

confidence: 99%

“…Yb:Lu 2 O 3 is a promising candidate to demonstrate even shorter pulse durations, higher pulse energies, and higher average output powers under similar conditions thanks to its better thermal and spectroscopic capabilities. Besides Yb:Lu 2 O 3 , the related sesquioxide Yb:Sc 2 O 3 shows comparable laser performance in cw operation [5]. However, the emission peak around the laser wavelength in the emission spectrum of Yb:Sc 2 O 3 is significantly redshifted compared to Yb:Lu 2 O 3 .…”

Section: Introductionmentioning

confidence: 99%

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Yb-doped mixed sesquioxides for ultrashort pulse generation in the thin disk laser setup

Beil¹,

Saraceno

Schriber

et al. 2013

Appl. Phys. B

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Yb-doped mixed sesquioxides for ultrashort pulse generation in the thin disk laser setup

Beil¹,

Saraceno

Schriber

et al. 2013

Appl. Phys. B

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“…Very recently, the first Kerr lens modelocked (KLM) [19] TDL was demonstrated using Yb:YAG generating 17 W average power with pulse duration of 200 fs [20]. Recent progress in the growth of high quality sesquioxide materials has attracted great attention [21,22]. Yb:Lu 2 O 3 already holds the record in terms of average power from a passively modelocked oscillator [4] and very recently, 142 fs pulses were reported from this material exploiting >70% of the available 12 nm emission bandwidth [23].…”

Section: Introductionmentioning

confidence: 99%

Sub-100 femtosecond pulses from a SESAM modelocked thin disk laser

et al. 2012

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We present the first passively modelocked thin disk laser (TDL) with sub-100-fs pulse duration using the broadband sesquioxide gain material Yb:LuScO 3 and an optimized SEmiconductor Saturable Absorber Mirror (SESAM). In this proof-of-principle experiment, we obtained 5.1 W of average power at a repetition rate of 77.5 MHz and a pulse duration of 96 fs. We carefully explored and optimized the different parameters on the soliton pulse formation process for the generation of short pulses. In particular, SESAMs combining fast recovery time, high modulation depth and low nonsaturable losses proved crucial to achieve this result even though they are expected to only play a minor role in soliton modelocking. To our knowledge, these are the shortest pulses ever obtained with a modelocked TDL, reaching for the first time the sub-100-fs milestone. This result opens the door to sub-100-fs oscillators with substantially higher power levels in the near future.

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“…This enabled new performance milestones of ultrafast TDLs in the short pulse duration regime: the first demonstration of sub-100 fs operation with a SESAM-modelocked TDL was achieved in 2012 using the promising broadband sesquioxide material Yb:LuScO 3 (Yb:LuScO), that delivered 96-fs pulses at an output power of 5.1 W [12]. Yb:LuScO is a stoichiometric mixture of the two sesquioxides Yb:Lu 2 O 3 (Yb:LuO) with a center gain wavelength at 1034 nm and an emission bandwidth of 13 nm, and Yb:Sc 2 O 3 (Yb:ScO) with a center gain wavelength at 1041 nm and an emission bandwidth of 12 nm [13]. As it combines the emission peaks of both crystals its emission spectrum is nearly doubled, centered around 1039 nm [11].…”

Section: Introductionmentioning

confidence: 99%

Dual-gain SESAM modelocked thin disk laser based on Yb:Lu_2O_3 and Yb:Sc_2O_3

et al. 2014

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Abstract:We present for the first time a SESAM-modelocked thin-disk laser (TDL) that incorporates two gain materials with different emission spectra in a single TDL resonator. The two gain media used in this experiment are the sesquioxide materials Yb:Lu 2 O 3 and Yb:Sc 2 O 3 , which have their spectral emission peak displaced by ≈7 nm. We can benefit from a combined gain bandwidth that is wider than the one provided by a single gain material alone and still conserve the excellent thermal properties of each disk. In these first proof-of-principle experiments we demonstrate pulse durations shorter than previously achieved with the single gain material Yb:Lu 2 O 3 . The oscillator generates pulses as short as 103 fs at a repetition rate of 41.7 MHz and a center wavelength of around 1038 nm, with an average output power of 1.4 W. A different cavity layout provides pulses with a duration of 124 fs at an output power of 8.6 W. This dual-gain approach should allow for further power scaling of TDLs and these first results prove this method to be a promising new way to combine the record output-power performance of modelocked TDLs with short pulse durations in the sub-100 fs regime. Matuschek, and J. Aus der Au, "Semiconductor saturable absorber mirrors (SESAMs) for femtosecond to nanosecond pulse generation in solid-state lasers," IEEE J. Sel. Top. Quantum Electron. 2(3), 435-453 (1996). 2. A. Giesen, H. Hügel, A. Voss, K. Wittig, U. Brauch, and H. Opower, "Scalable concept for diode-pumped highpower solid-state lasers," Appl. Phys. B 58(5), 365-372 (1994). Published in Optics Express, 22, issue 16, 18979-18986, 2014 which should be used for any reference to this work 1 Stolow, U. Thumm, and M. J. J. Vrakking, "What will it take to observe processes in 'real time'?" Nat. Photonics 8(3), 162-166 (2014

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Thermal analysis and efficient high power continuous-wave and mode-locked thin disk laser operation of Yb-doped sesquioxides

Cited by 116 publications

References 24 publications

Yb-doped mixed sesquioxides for ultrashort pulse generation in the thin disk laser setup

Yb-doped mixed sesquioxides for ultrashort pulse generation in the thin disk laser setup

Sub-100 femtosecond pulses from a SESAM modelocked thin disk laser

Dual-gain SESAM modelocked thin disk laser based on Yb:Lu_2O_3 and Yb:Sc_2O_3

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