Femtosecond pulse amplification in cladding-pumped fibers

Minelly, J.D.; Galvanauskas, Almantas; Fermann, M. E.; Harter, D.; Caplen, J.E.; Chen, Z. J.; Payne, D.N.

doi:10.1364/ol.20.001797

Cited by 34 publications

(10 citation statements)

References 11 publications

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“…Initially, output power was severely limited by the need for single-mode pump sources. The use of double clad fiber (DCF) amplifiers relaxed pump brightness requirements and allowed the use of lower brightness diodes [9,10]. However output pulse energy was still limited by the small core area of the available single-mode fibers and their associated high nonlinear parameter,…”

Section: Reviewmentioning

confidence: 99%

“…However FBGs are difficult to make and can suffer from coupling to cladding modes; in addition inherent group delay ripple has so far limited pulse compressibility [24][25][26]. Finally several methods of fiber-based compressors have also been demonstrated [9,27,28], however current fiber-compressor technology limits compressible pulse energy to ~1 µJ.…”

Section: Reviewmentioning

confidence: 99%

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Ultrafast high energy amplifiers beyond the B-integral limit

Shah¹,

Liu²,

Hartl³

et al. 2006

Fiber Lasers III: Technology, Systems, and Applications

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High average power single-mode fiber lasers have attracted significant attention as alternatives to conventional solidstate lasers owing to their relative high brightness, compactness and robustness. Likewise the turn-key operation of industrially qualified ultrafast fiber oscillators is well established. In recent years the convergence of reliable ultrafast fiber oscillators, high brightness pump diodes and high power fiber amplifiers has enabled ultrafast fiber lasers to surpass ultrafast solid-state lasers in terms of average power. While fiber lasers have generally not been able to match the ultrashort pulse energies produced by solid-state lasers, careful management of nonlinearities can overcome the conventional B-integral limit of π thereby permitting stable operation of practical ultrafast fiber lasers with pulse energies approaching the milli-Joule level. Here we review modes of nonlinear propagation in fibers which have enabled increases in ultrashort pulse energies from nano-Joule to milli-Joule levels, namely: solitons, similaritons and cubicons. As an example of a practical high energy ultrafast fiber laser, we demonstrate a cubicon Yb fiber chirped pulse amplification system producing 550 fs pulses with 50 µJ at >15 W.

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Section: Reviewmentioning

confidence: 99%

Section: Reviewmentioning

confidence: 99%

Ultrafast high energy amplifiers beyond the B-integral limit

Shah¹,

Liu²,

Hartl³

et al. 2006

Fiber Lasers III: Technology, Systems, and Applications

Self Cite

View full text Add to dashboard Cite

show abstract

“…The amplification to high peak power of ultrashort pulses is particularly challenging and requires innovative fibre and amplifier designs. In general, sufficient pulse stretching in the time domain together with the enlargement of the mode field area of the active core is used to reduce the peak power in the fiber and thus limit nonlinear effects The so-called fibre chirped pulse amplification (FCPA) technique [2] has benefits from the development of extremely large mode area photonic crystal fibres [3]. Recently, the generation of pulses of 1 mJ at 100 kHz with moderated quality picosecond durations pulses has been demonstrated thanks to the use of a 2 ns multilayer dielectric grating stretcher / compressor unit together with a state-of-the-art rod-type photonic crystal fiber as the main amplifier [4].…”

Section: Introductionmentioning

confidence: 99%

High-energy fibre CPA system based on a single stage rod type fiber amplifier in double pass configuration

et al. 2011

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In this contribution, we report the generation of high energy, high temporal quality, ultrashort pulses from a single stage double-pass short length Ytterbium-doped rod type fibre chirped pulse amplification setup. The fibre used as gain medium is a 95-cm long rod type microstructured fibre with a 80 µm core diameter and 200 µm pump cladding diameter seeded by 3 nJ pulses at 100 kHz of repetition rate. We demonstrate amplification and compression up to 200 µJ energy in 250 fs (assuming sech² pulse shape) with good temporal quality leading to ~ 750 MW peak power.

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“…In general, sufficient pulse stretching in the time domain together with the enlargement of the mode field area of the active core is used to reduce the peak power in the fiber and thus limit nonlinear effects. The so-called fiber chirped pulse amplification (FCPA) technique, introduced in the nineties [2], has benefited of crucial technological progresses in the key technology of Yb-doped large core single mode photonic crystal fiber. For instance, the production of 100 µJ at 900 kHz, i.e.…”

Section: Introductionmentioning

confidence: 99%

Generation of high energy and high quality ultrashort pulses in moderately non-linear fiber chirped pulse amplifier

et al. 2009

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We report the generation of high temporal quality high energy ultra-short pulses from a moderately non-linear fiber chirped pulse amplifier. The system is based on a two amplification stages and delivers 270 fs pulses of 100 µJ energy at a repetition rate of 300 kHz. The excellent temporal quality of the recompressed pulses, down to 1.1 the Fourier limit, allows the production of ~ 340 MW of peak power. The fibre chirped pulse amplifier is design to compensate the nonlinear phase shift accumulated throughout the amplifier stages by third order of dispersion provided by mismatched temporal stretcher and compressor units.

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Femtosecond pulse amplification in cladding-pumped fibers

Cited by 34 publications

References 11 publications

Ultrafast high energy amplifiers beyond the B-integral limit

Ultrafast high energy amplifiers beyond the B-integral limit

High-energy fibre CPA system based on a single stage rod type fiber amplifier in double pass configuration

Generation of high energy and high quality ultrashort pulses in moderately non-linear fiber chirped pulse amplifier

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