Former operate confirmed that the twin-crystal configuration can be used to compensate for your thermal lensing result[

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Figure 7 demonstrates the calculated dispersion compensation final result. The compressed pulse length is around 185 fs once the duration of input pulses is a hundred and fifty fs. The discrepancy amongst them will probably be noticeably decreased with a longer pulse enter due to the fact uncompensated higher-order dispersion issues significantly less for lengthier pulses. This configuration was utilized to demonstrate the compressibility of our amplified pulses within the preliminary stage of our full process. Down the road we might undertake a grating-pair compressor for wonderful payment for prime-buy dispersion.

In get more info distinction, the seed laser might be amplified to in excess of 1 mJ underneath the orthogonal orientation configuration.

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Several procedures are adopted to resolve this problem. An acousto-optical programmable dispersive filter could be utilized to modulate the seed’s spectrum to suppress the gain-narrowing effect[

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Therefore, with an additional improvement inside our regenerative amplifier, two mJ compressed pulses is often expected, with out detrimental any ingredient inside our compressor.

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KGW has a powerful Raman spectrum that extends with the ultraviolet on the close to infrared, which makes it helpful for a range of purposes. The crystal can be utilized as being a reference product for Raman spectroscopy, as well as a sample for researching Raman scattering while in the solid condition.

Figure 8 Intra-cavity pulse amplification procedure monitored by an oscilloscope. The pulse underwent an unsaturated amplification due to the mirror hurt limitation.

]. The dual-crystal configuration lowers the thermal load on Just about every crystal even though keeping a large acquire, and facilitates the compensation of every one’s thermal lensing result. As a result, the laser cavity can function with a large balance vary above the thermal lensing outcome variation.