Bandwidth control in 5  μm pulse generation by dual-chirped optical parametric amplification

Wandel, Scott F.; Lin, Ming; Yin, Yanchun; Xu, Guibao; Jovanovic, Igor

doi:10.1364/josab.33.001580

Cited by 16 publications

(7 citation statements)

References 23 publications

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“…Chirp management in a DC-OPA has been analyzed and experimentally utilized to generate both few-cycle IR laser pulses2223282930 and tunable narrowband mid-IR laser pulses27. Here we use chirp management combined with phase-matching tailoring to not only generate the 4–12 μ m broadband laser pulses, but also compress such broadband pulses to sub-cycle pulse duration via indirect pulse shaping.…”

Section: Resultsmentioning

confidence: 99%

“…In this paper, we present a design that enables not only generating, for the first time to the best of our knowledge, mJ-level, CEP-stable 4–12 μ m pulses through dual-chirped optical parametric amplification (DC-OPA)222327282930, but also compressing such pulses to sub-cycle duration through indirect pulse shaping. We have experimentally generated a μJ -level super broadband spectrum, which covers 1.8–4.2 μ m generated by difference frequency generation (DFG) in a BIBO crystal.…”

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confidence: 99%

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Towards Terawatt Sub-Cycle Long-Wave Infrared Pulses via Chirped Optical Parametric Amplification and Indirect Pulse Shaping

Yin

Chew

Ren

et al. 2017

Sci Rep

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We present an approach for both efficient generation and amplification of 4–12 μm pulses by tailoring the phase matching of the nonlinear crystal Zinc Germanium Phosphide (ZGP) in a narrowband-pumped optical parametric chirped pulse amplifier (OPCPA) and a broadband-pumped dual-chirped optical parametric amplifier (DC-OPA), respectively. Preliminary experimental results are obtained for generating 1.8–4.2 μm super broadband spectra, which can be used to seed both the signal of the OPCPA and the pump of the DC-OPA. The theoretical pump-to-idler conversion efficiency reaches 27% in the DC-OPA pumped by a chirped broadband Cr2+:ZnSe/ZnS laser, enabling the generation of Terawatt-level 4–12 μm pulses with an available large-aperture ZGP. Furthermore, the 4–12 μm idler pulses can be compressed to sub-cycle pulses by compensating the tailored positive chirp of the idler pulses using the bulk compressor NaCl, and by indirectly controlling the higher-order idler phase through tuning the signal (2.4–4.0 μm) phase with a commercially available acousto-optic programmable dispersive filter (AOPDF). A similar approach is also described for generating high-energy 4–12 μm sub-cycle pulses via OPCPA pumped by a 2 μm Ho:YLF laser.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Towards Terawatt Sub-Cycle Long-Wave Infrared Pulses via Chirped Optical Parametric Amplification and Indirect Pulse Shaping

Yin

Chew

Ren

et al. 2017

Sci Rep

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“…[20,33] and has been experimentally demonstrated in Ref. [35]; in the mid-IR region, realization of this scheme is not trivial because it depends on the available phase matching of nonlinear crystals. We found that the narrowband 2.05 μm source can be generated in phase-matching-tailored BBO, as shown in Fig.…”

Section: Principle Of Generating Narrow Bandwidth Via Dc-opamentioning

confidence: 99%

“…However, the bandwidth from such an OPA is huge compared with the narrow bandwidth of Ho:YLF gain spectrum [32]; thus, the usable energy from the OPA for seeding the Ho:YLF laser would be small. DC-OPA has been first theoretically analyzed [33] and then experimentally demonstrated to generate broadband and tunable wavelength laser sources [18][19][20][34][35][36]. Here, in this paper, we designed and experimentally demonstrated the efficient generation of narrowband 2.05 μm pulses pumped with a broadband Ti:sapphire laser via DC-OPA.…”

Section: Introductionmentioning

confidence: 99%

Generation of high-energy narrowband 205 μm pulses for seeding a Ho:YLF laser

Yin¹,

Ren²,

Wang³

et al. 2017

Photon. Res.

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We experimentally demonstrate efficient generation of high-energy (82 μJ) narrowband 2.05 μm pulses pumped with 1 mJ broadband Ti:sapphire laser pulses, utilizing dual-chirped optical parametric amplification (DC-OPA) in a BBO crystal. The narrowband 2.05 μm pulses will be primarily used for seeding an Ho:YLF laser, which solves the synchronization issue when Ti:sapphire and Ho:YLF lasers are needed for developing midinfrared lasers. The narrowband 2.05 μm pulse from the unique DC-OPA design can seed the Ho:YLF laser much more efficiently than the broadband 2.05 μm pulse from traditional OPA technology.

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“…without invoking any additional OPA stage that in turn has to be seeded with an external, narrowband and synchronized laser source [14]. Other techniques, including OPA seeded with supercontinuum [15], or exploiting optical parametric generation (OPG) [16,17] would require additional spectral phase tailoring steps to properly adjust the chirp of the seed. Moreover, in the OPG case, the temporal coherence is limited by the amplified quantum noise which, by definition, has a random phase with respect to the pump.…”

Section: Introductionmentioning

confidence: 99%

Narrowband, tunable, infrared radiation by parametric amplification of a chirped backward-wave OPO signal

Viotti¹,

Žukauskas²,

Canalias³

et al. 2019

Opt. Express

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The strict momentum conservation constraints for backward-wave optical parametric oscillators (BWOPOs) gives an inherently narrowband backward-generated wave, even with broadband pumping. Unfortunately, the limited tuning range of this wave restricts potential applications. Here we demonstrate a method to circumvent this restriction and increase the tuning range by more than one order of magnitude. A linearly chirped pump modulation is transferred to the forward-generated BWOPO wave, which is then mixed with an identically chirped pump in a conventional optical parametric amplifier to obtain narrowband (38 GHz), broadly tunable, infrared radiation around 1.86 µm, with an output energy of 19 µJ.

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Bandwidth control in 5 μm pulse generation by dual-chirped optical parametric amplification

Cited by 16 publications

References 23 publications

Towards Terawatt Sub-Cycle Long-Wave Infrared Pulses via Chirped Optical Parametric Amplification and Indirect Pulse Shaping

Towards Terawatt Sub-Cycle Long-Wave Infrared Pulses via Chirped Optical Parametric Amplification and Indirect Pulse Shaping

Generation of high-energy narrowband 205 μm pulses for seeding a Ho:YLF laser

Narrowband, tunable, infrared radiation by parametric amplification of a chirped backward-wave OPO signal

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