Energy scaling of femtosecond amplifiers using actively controlled divided-pulse amplification

Kienel, Marco; Klenke, Arno; Eidam, Tino; Hädrich, Steffen; Limpert, Jens; Tünnermann, Andreas

doi:10.1364/ol.39.001049

Cited by 81 publications

(40 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Here, the combining efficiency is the ratio of power in the combined beam over the total output power of the amplifiers, which does not include temporal combination loss, yet. The efficiency is > 94 % over the range of addressed pulse energy and is comparable to results of a previous proof-ofprinciple experiment based on 6 µm-core fibers 9 . The slight decrease in efficiency at high pulse energy arises from differences in nonlinearity and an increasing background of amplified spontaneous emission at low repetition rates.…”

Section: Theory Of Operationsupporting

confidence: 84%

Electro-optically controlled divided-pulse amplification

et al. 2016

View full text Add to dashboard Cite

We present a spatial and temporal coherent-beam-combination system based on a fiber-integrated front-end, electrooptical components, and optical delay lines. The system features a larger scaling potential, enhanced stability and reduced alignment sensitivity compared to known divided-pulse amplification schemes. In a proof-of-principle experiment combining 4 pulses, a combining efficiency larger than 95% and a high amplitude stability are demonstrated. The efficiency is largely independent of the combined pulse energy and the temporal pulse contrast is better than 20 dB.

show abstract

Section: Theory Of Operationsupporting

confidence: 84%

Electro-optically controlled divided-pulse amplification

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Using a LBO crystal, the laser beam frequency can finally be doubled with more than 50% efficiency before entering the optical cavity to provide a high average power beam at a wavelength close to 515nm. Eventually one can also parallelise two fibre amplifiers to compensate for the second harmonic generation limited efficiency [107][108][109].…”

Section: Test Facilitymentioning

confidence: 99%

PERLE. Powerful energy recovery linac for experiments. Conceptual design report

Angal-Kalinin

Arduini

Auchmann

et al. 2018

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

A conceptual design is presented of a novel energy-recovering linac (ERL) facility for the development and application of the energy recovery technique to linear electron accelerators in the multi-turn, large current and large energy regime. The main characteristics of the powerful energy recovery linac experiment facility (PERLE) are derived from the design of the Large Hadron electron Collider, an electron beam upgrade under study for the LHC, for which it would be the key 11 Author to whom any correspondence should be addressed.Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. demonstrator. PERLE is thus projected as a facility to investigate efficient, high current (HC) (>10 mA) ERL operation with three re-circulation passages through newly designed SCRF cavities, at 801.58 MHz frequency, and following deceleration over another three re-circulations. In its fully equipped configuration, PERLE provides an electron beam of approximately 1 GeV energy. A physics programme possibly associated with PERLE is sketched, consisting of high precision elastic electron-proton scattering experiments, as well as photo-nuclear reactions of unprecedented intensities with up to 30 MeV photon beam energy as may be obtained using Fabry-Perot cavities. The facility has further applications as a general technology test bed that can investigate and validate novel superconducting magnets (beam induced quench tests) and superconducting RF structures (structure tests with HC beams, beam loading and transients). Besides a chapter on operation aspects, the report contains detailed considerations on the choices for the SCRF structure, optics and lattice design, solutions for arc magnets, source and injector and on further essential components. A suitable configuration derived from the here presented design concept may next be moved forward to a technical design and possibly be built by an international collaboration which is being established.

show abstract

“…To achieve that one needs to amplify much longer pulses than are obtainable in a CPA approach. As a step in this direction a divided pulse amplification (DPA) technique has been proposed recently [4,5], which is based on pre-amplification spatial pulse-splitting and postamplification pulse-recombining. However, since it requires delay lines whose lengths increase exponentially with the number of pulse division stages, DPA technique appears to be limited to a relatively small number of pulses (approximately 10).…”

Section: The European Physical Journal Special Topicsmentioning

confidence: 99%

Resonant cavity based time-domain multiplexing techniques for coherently combined fiber laser systems

Zhou

Ruppe

Stanfield

et al. 2015

Eur. Phys. J. Spec. Top.

View full text Add to dashboard Cite

Abstract. This paper describes novel time-domain multiplexing techniques that use various resonant cavity configurations for increasing pulse energy extraction per each parallel amplification channel of a coherently combined array. Two different techniques are presented: a so-called N 2 coherent array combining technique, applicable to a periodic pulse train, and a coherent pulse stacking amplification (CPSA) technique, applicable to a pulse burst. The first technique is a coherent combining technique, which achieves simultaneous beam combining and time-domain pulse multiplexing/down-counting using traveling-wave Fabry-Perot type resonators. The second technique is purely a timedomain pulse multiplexing technique, used with either a single amplifier or an amplifier array, which uses traveling-wave Gires-Tourmois type resonators.The importance of these techniques is that they can enable stacking of very large number of pulses, thus increasing effective amplified-pulse duration potentially by 10 2 to 10 3 times, and reducing fiber array size by the corresponding factor. This could lead to very compact coherently combined arrays even for generating very high pulse energies in the range of 1 to 100 J.

show abstract

Energy scaling of femtosecond amplifiers using actively controlled divided-pulse amplification

Cited by 81 publications

References 19 publications

Electro-optically controlled divided-pulse amplification

Electro-optically controlled divided-pulse amplification

PERLE. Powerful energy recovery linac for experiments. Conceptual design report

Resonant cavity based time-domain multiplexing techniques for coherently combined fiber laser systems

Contact Info

Product

Resources

About