35 J broadband femtosecond optical parametric chirped pulse amplification system

Chekhlov, O.; Collier, J.; Ross, I. N.; Bates, Philip K.; Notley, M.; Hernandez‐Gomez, C.; Shaikh, W.; Danson, C.; Neely, D.; Matousek, Pavel; Hancock, S.; Cardoso, L. A.

doi:10.1364/ol.31.003665

Cited by 128 publications

(44 citation statements)

References 11 publications

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“…High pulse energies can be obtained when combining the OPA technique with the CPA scheme (OPCPA), as first proposed by Dubietis et al [16]. OPCPA systems have already been demonstrated to deliver pulse energies as high as 35 J in 84-fs pulses [17], 500-TW peak power for 30-fs pulses [18] as well as 90 mJ in the few-cycle regime (10 fs) [19]. However, the generation of Joule-scale pulse energies in the fewcycle regime has yet to be demonstrated and constitutes the aim of the petawatt field synthesizer (PFS) [1] development.…”

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confidence: 99%

Ultra-broadband near-infrared pulse generation by noncollinear OPA with angular dispersion compensation

et al. 2009

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A scheme for the generation of an ultra-broadband, near-infrared beam from a Ti:sapphire source is proposed with the aim to serve as seed pulse of a petawatt-field synthesizer (Major et al. in Rev. Laser Eng. 37:431, 2009). The idler beam of a noncollinear optical parametric amplifier, pumped at the second harmonic of the Ti:sapphire output, displays the required bandwidth, albeit with an inherent angular chirp owing to the noncollinear geometry. We propose a scheme for the compensation of this angular dispersion which consists of a diffraction grating, a telescope and a deformable mirror. The suitability of this scheme is discussed quantitatively and preliminary experimental findings are shown.

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Ultra-broadband near-infrared pulse generation by noncollinear OPA with angular dispersion compensation

et al. 2009

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“…This scheme was firstly proposed by Dubietis et al [15]. OPCPA systems have already been demonstrated to deliver pulse energies as high as 35 J in 84-fs pulses [16] as well as 90 mJ in the fewcycle regime (10 fs) [17]. However, the generation of joulescale pulse energies in the few-cycle regime has yet to be demonstrated and constitutes the aim of the petawatt field synthesizer (PFS) [18] development.…”

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confidence: 99%

Ultrabroadband near-infrared pulse generation by noncollinear OPA with angular dispersion compensation

et al. 2009

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A telescope-grating-deformable scheme is proposed to compensate the angular dispersion of ultrabroadband spectrum. A simple design consideration is formulated based on the large angular dispersion of the idler from noncollinear optical parametric amplification. A proof of principle experiment is demonstrated. A 3-µJ ultrabroadband nearinfrared pulse with spectrum range from 700 to 1400 nm has been generated. The technique has great potential to provide an ultrabroadband seed with negligible angular dispersion for high-power amplification of few-cycle pulses.

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“…In recent years, it has been successfully employed in the power amplification stage of OPCPA as pre-amplification of some PW lasers centered around 1 058 nm [15] . In 2006, Chekhlov et al reported their OPCPA system, in which the output energy of the signal pulse is centered at 1 050 nm and up to 35 J and pulse bandwidth of 84 fs are achieved with pump pulse of 190 J from the second harmonic of the Vulcan laser; in addition, the large aperture crystal in the power amplification is KH 2 PO 4 (KDP) [16] .To the best of our knowledge, YCOB has not been used in OPCPA systems centered at 808 nm to achieve output energy of up to several joules and pulse width of ∼10 fs. In the current study, a new type of OPCPA to amplify pulse of ∼10 fs up to several joules is analyzed, and YCOB rather than KDP or KD 2 DO 4 (DKDP) crystal is applied as the gain medium of power amplification stage.…”

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Analysis of ultra-broadband high-energy optical parametric chirped pulse amplifier based on YCOB crystal

Sun¹,

Ji²,

Bi³

et al. 2011

中国光学快报

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A new type of optical parametric chirped pulse amplifier is designed and analyzed for the amplification of pulse centered at 808 nm. A novel crystal, yttrium calcium oxyborate YCa4O(BO3)3 (YCOB), is utilized in the power amplification stage of optical parametric amplification (OPA). Noncollinear phase matching parameters in the xoz principle plane of YCOB, compared with those in BBO and DKDP, are analyzed by numerical simulation. The results show that YCOB rather than DKDP can be used in the power amplification stage of OPA to realize the amplification of chirped pulse to several joules with a gain bandwidth exceeding 100 nm. This can be used to gain a high intensity pulse of ∼10 fs after the compressor.OCIS codes: 190.4410, 190.4970, 140.4480. doi: 10.3788/COL201109.101901. The amplification of the femtosecond pulse is an important branch of ultra-intense laser technology, with Ti: sapphire as the medium for its large gain bandwidth. From the perspective of technical features and applications, such femtosecond pulses are used to study high field physics and other related areas in ultrashort time [1,2] ; however, the pursuit of higher energy femtosecond pulse should not be abandoned. Optical parametric chirped pulse amplification (OPCPA) has been successfully used in the front end of high intensity lasers [3−8] , indicating the possibility of femtosecond pulse amplification. This has been verified by an increasing number of fine crystals being invented, such as YCa 4 O(BO 3 ) 3 (YCOB) [9−12] . In contrast with the nonlinear crystals commonly utilized in high energy OPCPA systems, YCOB crystal possesses several prominent properties, including high fracture strength, moderate thermal conductivity and nonlinear coupling, and damage threshold of as high as 1 GW/cm 2 at 532 nm [12,13] . Refractive indexes and transmission spectra of YCOB crystal have been reported in Ref. [12]. In particular, the growth of YCOB to 7.5 (diameter) ×25 (length) (cm) boule has been scaled [14,15] , that is, the available YCOB aperture is much larger than those of LiB 3 O 5 (LBO) and Ba(BO 2 ) 2 (BBO), which are currently limited to 2 cm. Most studies on the nonlinearity of YCOB crystal during the 1990s focused on the second and the third harmonic generation [11] . In recent years, it has been successfully employed in the power amplification stage of OPCPA as pre-amplification of some PW lasers centered around 1 058 nm [15] . In 2006, Chekhlov et al. reported their OPCPA system, in which the output energy of the signal pulse is centered at 1 050 nm and up to 35 J and pulse bandwidth of 84 fs are achieved with pump pulse of 190 J from the second harmonic of the Vulcan laser; in addition, the large aperture crystal in the power amplification is KH 2 PO 4 (KDP) [16] .To the best of our knowledge, YCOB has not been used in OPCPA systems centered at 808 nm to achieve output energy of up to several joules and pulse width of ∼10 fs. In the current study, a new type of OPCPA to amplify pulse of ∼10 fs up to several joules is analyzed, and Y...

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35 J broadband femtosecond optical parametric chirped pulse amplification system

Cited by 128 publications

References 11 publications

Ultra-broadband near-infrared pulse generation by noncollinear OPA with angular dispersion compensation

Ultra-broadband near-infrared pulse generation by noncollinear OPA with angular dispersion compensation

Ultrabroadband near-infrared pulse generation by noncollinear OPA with angular dispersion compensation

Analysis of ultra-broadband high-energy optical parametric chirped pulse amplifier based on YCOB crystal

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