We demonstrate efficient and economical all-solid-state post-compression based on dual-stage periodically placed thin fused silica plates driven by a more than 100 W ytterbium-doped yttrium aluminum garnet Innoslab am...We demonstrate efficient and economical all-solid-state post-compression based on dual-stage periodically placed thin fused silica plates driven by a more than 100 W ytterbium-doped yttrium aluminum garnet Innoslab amplifier seeded by a fiber frontend.Not only is a more than eight-fold pulse compression with 94%transmission achieved,but also the pulse quality and spatial mode are improved,which can be attributed to the compensation for the residual high-order dispersion and the spatial mode self-cleaning effect during the nonlinear process.It enables a high-power ultrafast laser source with 64 fs pulse duration,96 W average power at 175 k Hz repetition rates and good spatiotemporal quality.These results highlight that this all-solid-state post-compression can overcome the bandwidth limitation of Yb-based lasers with exceptional efficiency and mitigate the spatiotemporal degradation originating from the Innoslab amplifier and fiber frontend,which provides an efficient and economical complement for the Innoslab laser system and facilitates this robust and compact combination as a promising scheme for high-quality higher-power few-cycle laser generation.展开更多
In this paper, we propose and demonstrate an adjustable-free and movable Nd:YVO_(4)thin disk laser based on the telecentric cat’s eye cavity. We design a V-shaped laser cavity containing two reflectors with Nd:YVO_(4...In this paper, we propose and demonstrate an adjustable-free and movable Nd:YVO_(4)thin disk laser based on the telecentric cat’s eye cavity. We design a V-shaped laser cavity containing two reflectors with Nd:YVO_(4)thin disks as the gain medium.The experimental results from the traditional plane-plane cavity, plane-telecentric cat’s eye cavity, and double telecentric cat’s eye cavity are compared. They show that plane-telecentric cat’s eye cavity laser can keep operating at the adjustablefree range of -6° to +6°, which is up to 60 times better than that of traditional plane-plane cavity. In the double telecentric cat’s eye case, the adjustable-free range is improved to-13° to +13°. Additionally, in the case of the double telecentric cat’s eye cavity, the output telecentric cat’s eye can achieve free movement within the horizontal range of ±20 mm.展开更多
We demonstrate an efficient ultrafast source with 195 fs pulse duration,54 W average power at 200 kHz repetition rate and near diffraction-limited beam quality.The compact setup incorporates a thin-disk Yb:YAG regener...We demonstrate an efficient ultrafast source with 195 fs pulse duration,54 W average power at 200 kHz repetition rate and near diffraction-limited beam quality.The compact setup incorporates a thin-disk Yb:YAG regenerative amplifier(RA)and a subsequent nonlinear pulse compression stage with periodic-layered Kerr media(PLKM),which is one of the multiple-thin-solid-plate schemes based on nonlinear resonator theory.In virtue of the formation of quasi-stationary spatial soliton in PLKM,the near diffraction-limited beam quality of the RA remained almost undisturbed after post-compression.The nonlinear pulse compression module is simple and efficient with a transmission of 96%.To the best our knowledge,for pulse energy over 200μJ,this is the highest output power reported for the multiple-thin-solid-plate scheme.This source manifests an economical combination to mitigate the bandwidth limitations of Yb-based high-power chirped pulse amplifiers.展开更多
基金supported by the National Natural Science Foundation of China(NSFC)(No.62005298)the Program of Shanghai Academic/Technology Research Leader(No.20SR014501)Zhangjiang Laboratory。
文摘We demonstrate efficient and economical all-solid-state post-compression based on dual-stage periodically placed thin fused silica plates driven by a more than 100 W ytterbium-doped yttrium aluminum garnet Innoslab amplifier seeded by a fiber frontend.Not only is a more than eight-fold pulse compression with 94%transmission achieved,but also the pulse quality and spatial mode are improved,which can be attributed to the compensation for the residual high-order dispersion and the spatial mode self-cleaning effect during the nonlinear process.It enables a high-power ultrafast laser source with 64 fs pulse duration,96 W average power at 175 k Hz repetition rates and good spatiotemporal quality.These results highlight that this all-solid-state post-compression can overcome the bandwidth limitation of Yb-based lasers with exceptional efficiency and mitigate the spatiotemporal degradation originating from the Innoslab amplifier and fiber frontend,which provides an efficient and economical complement for the Innoslab laser system and facilitates this robust and compact combination as a promising scheme for high-quality higher-power few-cycle laser generation.
基金This work was supported by the National Natural Science Foundation of China(NSFC)(Nos.61775223 and 11974367)Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB1603)Shanghai Science and Technology Innovation Action Plan Project(No.19142202500)。
文摘In this paper, we propose and demonstrate an adjustable-free and movable Nd:YVO_(4)thin disk laser based on the telecentric cat’s eye cavity. We design a V-shaped laser cavity containing two reflectors with Nd:YVO_(4)thin disks as the gain medium.The experimental results from the traditional plane-plane cavity, plane-telecentric cat’s eye cavity, and double telecentric cat’s eye cavity are compared. They show that plane-telecentric cat’s eye cavity laser can keep operating at the adjustablefree range of -6° to +6°, which is up to 60 times better than that of traditional plane-plane cavity. In the double telecentric cat’s eye case, the adjustable-free range is improved to-13° to +13°. Additionally, in the case of the double telecentric cat’s eye cavity, the output telecentric cat’s eye can achieve free movement within the horizontal range of ±20 mm.
基金the National Key Research and Development Program of China(2017YFB0405202)the National Natural Science Foundation of China(NSFC)(62005298)the Program of Shanghai Academic/Technology Research Leader(20SR014501).
文摘We demonstrate an efficient ultrafast source with 195 fs pulse duration,54 W average power at 200 kHz repetition rate and near diffraction-limited beam quality.The compact setup incorporates a thin-disk Yb:YAG regenerative amplifier(RA)and a subsequent nonlinear pulse compression stage with periodic-layered Kerr media(PLKM),which is one of the multiple-thin-solid-plate schemes based on nonlinear resonator theory.In virtue of the formation of quasi-stationary spatial soliton in PLKM,the near diffraction-limited beam quality of the RA remained almost undisturbed after post-compression.The nonlinear pulse compression module is simple and efficient with a transmission of 96%.To the best our knowledge,for pulse energy over 200μJ,this is the highest output power reported for the multiple-thin-solid-plate scheme.This source manifests an economical combination to mitigate the bandwidth limitations of Yb-based high-power chirped pulse amplifiers.
