Fascination About KGW Crystal

Fascination About KGW Crystal

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The gain bandwidth e.g. of Yb:KGW and Yb:KYW is extremely large when compared with that of Yb:YAG. This enables for wide wavelength tunability and for Substantially shorter pulse durations from mode-locked lasers. Values perfectly under a hundred fs have been obtained with passive method locking.

Hence There exists little independence for optimizing the dispersion payment influence. Sub-two hundred fs pulses could be anticipated with a broader bandwidth seed input. Due to the dual-crystal configuration, the laser cavity provides a close to diffraction confined laser beam with M

Its pump laser needs a short pulse length, a lower time jitter, and sleek temporal and spatial distributions due to intrinsic instantaneous procedure. Hence, the OPCPA program is much more challenging and high priced.

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Sooner or later, We'll adopt a laser seed using a broader spectral bandwidth and use an acousto-optical programmable dispersive filter to modulate the seed’s spectrum to make entire use from the achieve bandwidth of our regenerative amplifier.

The black line denotes the configuration Together with the crystals positioned in the identical orientation, whilst the red line is underneath the configuration of crystals positioned in orthogonal orientation.

We plan to spice up the heart beat Electrical power to higher than forty mJ in two-stage multi-pass amplifiers, akin to a acquire element of twenty. In each amplifier, we will even undertake two cascaded crystals positioned less than orthogonal orientation to lessen the thermal load on Every single crystal and compensate for the get-narrowing outcome.

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Tungstates are inclined to acquire substantial Raman coefficients (�?Raman scattering). Thus, they are able to produce important Raman gain at moderate optical intensities. It is feasible to utilize the laser crystal alone as a Raman converter.

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]. The dual-crystal configuration lowers the thermal load on Just more info about every crystal while keeping a high obtain, and facilitates the payment of each one’s thermal lensing result. Hence, the laser cavity can function with a considerable stability assortment about the thermal lensing effect variation.