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We made use of a transmission grating (TG) being a dispersive component in our stretcher and compressor. A compact configuration was adopted, the place the stretcher and also the compressor shared one particular grating much like that in Ref.

Therefore There exists little flexibility for optimizing the dispersion compensation outcome. Sub-200 fs pulses may be predicted with a broader bandwidth seed input. Due to the dual-crystal configuration, the laser cavity provides a near diffraction restricted laser beam with M

Its pump laser wants a brief pulse length, a lower time jitter, and sleek temporal and spatial distributions due to the intrinsic instantaneous system. Hence, the OPCPA technique is a lot more complicated and costly.

For tungstates, the ytterbium doping concentration can be extremely large with no major quenching as the changed ions have an exceedingly identical ion radius, and the inter-ion distance is comparatively big.

In the future, We are going to adopt a laser seed by using a broader spectral bandwidth and implement an acousto-optical programmable dispersive filter to modulate the seed’s spectrum to help make comprehensive use on the acquire bandwidth of our regenerative amplifier.

The black line denotes the configuration With all the crystals put in precisely the same orientation, though the crimson line is beneath the configuration of crystals placed in orthogonal orientation.

Inquire RP Photonics for any tips relating to tungstate lasers, together with femtosecond lasers and substantial-electrical power lasers.

First of all, Because the filament-induced luminescence originates from simultaneous absorption of several photons, whose full Strength exceeds the bandgap Vitality of fabric, it offers simple separation of excitation and emission wavelengths and presents quite sturdy sign Irrespective of getting emitted over your entire strong angle. The posture in the filament track Within the crystal is usually effortlessly modified inside a wished-for way by various the pump pulse energy, Whilst the depth clamping in a light-weight filament significantly lessens the risk of optical problems. These functions is usually beneficial for getting additional details about crystal homogeneity and expose the existence and distribution more info of different dopants inside the sample.

相关工作得到了上海扬帆计划、国家重点研发计划、中国科学院战略性先导科技专项、国家自然科学基金项目、上海市优秀学术/技术带头人计划、上海市市级科技重大专项、中国科学院青年创新促进会的支持。（强场激光物理国家重点实验室供稿）

-switched output spectrum of the regenerative amplifier supports a sub-one hundred sixty fs pulse amplification. Thus, pulses with energies of up to 2 mJ and length down below 200 fs may be received utilizing greater-excellent dichroic mirrors and a broader-spectrum laser seed. This regenerative amplifier works as a great pre-amplifier for even further laser amplification.

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Each energies are marked through the dashed traces as well as their values are labeled during the plots. The equivalent attributes had been also observed in KGW and YAG crystals, whose spectral broadening dynamics are proven for just a comparison in Fig. four.