Figure 1 | Scientific Reports

Figure 1

From: A versatile high-average-power ultrafast infrared driver tailored for high-harmonic generation and vibrational spectroscopy

Figure 1

OPCPA design. Following compression, 150 W of the pump drives OPA3. The remaining \(\sim \) 50 W is frequency-doubled (SHG) and the 515-nm output pumps the DFG and OPA1 stages, whereas the 1030-nm residual pump drives OPA2. The DFG is seeded by the white-light-generation stage – either WLG1 or WLG2, depending on the passive CEP stability requirement (further details in the manuscript). The idler is propagated, via pulse-shaping in a Dazzler, to seed the subsequent OPAs.The signal and the idler are compressed via chirped mirrors and bulk compressors, respectively. The OPCPA also includes f–2f interferometers for active CEP stabilisation using the Dazzler, as well as environmental and shot-to-shot jitter monitoring diagnostics (not shown in the figure).

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