Broadband pulse compression gratings with measured 997% diffraction efficiency

Rumpel, Martin; Moeller, Michael; Moormann, Christian; Graf, Thomas; Ahmed, Marwan Abdou

doi:10.1364/ol.39.000323

Cited by 36 publications

(21 citation statements)

References 24 publications

(34 reference statements)

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“…In addition, using higher power pump diodes to scale repetition rate would directly increase the EUV average power, making better use of the high generation efficiency. Newer, more efficient, grating designs [37] allow for higher compressor throughput and thus would reduce the pulse energy required from the final amplifier for a fixed compressor output. The associated reduction in the B-integral would lead to cleaner compressed 100 μJ pulses and the improved concentration of energy in the pulse peak would increase the peak power, thus enabling looser focussing and improved HHG flux.…”

Section: Discussionmentioning

confidence: 99%

Efficient high-harmonic generation from a stable and compact ultrafast Yb-fiber laser producing 100 μJ, 350 fs pulses based on bendable photonic crystal fiber

et al. 2017

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Section: Discussionmentioning

confidence: 99%

Efficient high-harmonic generation from a stable and compact ultrafast Yb-fiber laser producing 100 μJ, 350 fs pulses based on bendable photonic crystal fiber

et al. 2017

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“…The pulses are compressed with a grating compressor consisting of two multilayer dielectric gratings [25] with a total transmission of 86%. The compressor is very compact due to the small grating sizes of 20mm and 100mm, respectively and the folded beam path between the gratings, separated by 1.3m.…”

Section: Laser Layoutmentioning

confidence: 99%

Highly stable, 54mJ Yb-InnoSlab laser platform at 05kW average power

Schmidt¹,

Hage

Mans

et al. 2017

Opt. Express

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We report on the leap of Yb-InnoSlab laser technology towards high pulse energies of 54mJ combined with high average power exceeding half a kW. The system features pulse durations of 1.5 picoseconds (ps) at 10kHz repetition rate with excellent beam properties (M of 1.1) combined with superb power and pointing stability in the sub-% range. It provides different output ports to facilitate optical synchronization for pumping parametric amplifiers. Tunable, femtosecond seed pulses are derived directly from the ps Yb pump pulses. We investigate the long term stability of this ps driven white light continuum and demonstrate 100-fold pulse compression down to 10fs duration. Ultra-broadband IR spectra centred at 2µm wavelength are subsequently generated via difference frequency generation of selected white light components.

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“…1-5 A diffraction grating's spectral diffraction efficiencies are key parameters when exploring the manufacturing process and evaluating its performance; therefore, the measurement of a diffraction grating's spectral diffraction efficiencies is essential for improving its manufacturing technique and to assess its function in practical applications. 6 Over the past half-century, several methods have been introduced to measure the diffraction efficiencies of a grating at particular wavelengths [9][10][11][12] or across a continuous wavelength band. [13][14][15] In 2006, a method based on an optical cavity was introduced to measure a grating with an ultrahigh diffraction efficiency (>99%) in the Littrow configuration, 16,17 and recently, with the aim of increasing measurement accuracy, Fourier spectral technology was used to measure the diffraction efficiency of a plane grating.…”

Section: Introductionmentioning

confidence: 99%

Motionless and fast measurement technique for obtaining the spectral diffraction efficiencies of a grating

Wang

Liu

Shao

et al. 2018

Review of Scientific Instruments

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The measurement of the spectral diffraction efficiencies of a diffraction grating is essential for improving the manufacturing technique and for assessing the grating's function in practical applications. The drawback of the currently popular measurement technique is its slow speed due to the hundreds of repetitions of two kinds of time-consuming mechanical movements during the measuring process (i.e., the rotation of the mechanical arm to capture the light beam and the mechanical variation of the output wavelength of the grating monochromator). This limitation greatly restricts the usage of this technique in dynamic measurement. In this manuscript, we present a motionless and fast measurement technique for obtaining the spectral diffraction efficiencies of a plane grating, effectively eliminating the aforementioned two kinds of mechanical movements. Herein, the proposed solution for removing the first kind of mechanical movement is tested, and the experimental result shows that the proposed method can be successfully used to measure the plane transmission grating's spectral diffraction efficiencies in the wavelength range of 550-750 nm. The method for eliminating the second kind of mechanical movement is not verified in this manuscript; however, we think that it is very straightforward and commercially available. We estimate that the spectral measurement can be achieved on a millisecond time scale by combining the two solutions. Our motionless and fast measuring technique will find broad applications in dynamic measurement environments and mass industrial testing.

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Broadband pulse compression gratings with measured 997% diffraction efficiency

Cited by 36 publications

References 24 publications

Efficient high-harmonic generation from a stable and compact ultrafast Yb-fiber laser producing 100 μJ, 350 fs pulses based on bendable photonic crystal fiber

Efficient high-harmonic generation from a stable and compact ultrafast Yb-fiber laser producing 100 μJ, 350 fs pulses based on bendable photonic crystal fiber

Highly stable, 54mJ Yb-InnoSlab laser platform at 05kW average power

Motionless and fast measurement technique for obtaining the spectral diffraction efficiencies of a grating

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