Octave-spanning energy-scalable CEP-stabilized pulses from a dual-chirped noncollinear optical parametric amplifier

摘要

A dual-chirped noncollinear optical parametric amplification scheme exploiting the unique dispersion properties of BiB_3O_6 (BiBO) crystal is proposed. Passively CEP-stabilized 2-um pulses from a broadband pumped OPA are efficiently amplified via noncollinear phase-matching in a thin BiBO crystal, resulting in an octave-spanning spectrum that supports a transform limited duration of 10.1 fs. The proposed scheme shows excellent compressibility and high energy scalability for the output signal. Sub-two-cycle CEP-stable mid-IR pulse with energy exceeding 20 mJ can be expected, which is potentially a perfect driving source in attosecond and strong-field researches.